Merge origin/main into deferred OpenCode restart branch.

Adopt main's providerAuth helpers (OAuth index preservation, OAuth-only API
key hiding, always-load auth methods) while keeping deferred Apply & Restart
for provider mutations.

Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>

packages/ui/src/lib/addSelectionToChat.test.ts

@@ -0,0 +1,298 @@
+import { afterEach, beforeEach, describe, expect, mock, test } from 'bun:test';
+
+const focusChatInputCalls: number[] = [];
+const pendingInputCalls: Array<{ text: string | null; mode?: string }> = [];
+const activeMainTabCalls: string[] = [];
+const sessionSwitcherCalls: boolean[] = [];
+const codeMirrorDispatches: Array<{ selection: { anchor: number } }> = [];
+
+type MockCodeMirrorView = {
+  state: {
+    selection: { main: { from: number; to: number } };
+    sliceDoc: (from: number, to: number) => string;
+  };
+  dispatch: (transaction: { selection: { anchor: number } }) => void;
+};
+
+let codeMirrorView: MockCodeMirrorView | null = null;
+
+mock.module('@codemirror/view', () => ({
+  EditorView: {
+    findFromDOM: () => codeMirrorView,
+  },
+}));
+
+mock.module('@/components/chat/composer/editor/dom', () => ({
+  focusChatInput: () => {
+    focusChatInputCalls.push(1);
+  },
+}));
+
+mock.module('@/sync/input-store', () => ({
+  useInputStore: {
+    getState: () => ({
+      setPendingInputText: (text: string | null, mode?: string) => {
+        pendingInputCalls.push({ text, mode });
+      },
+    }),
+  },
+}));
+
+mock.module('@/stores/useUIStore', () => ({
+  useUIStore: {
+    getState: () => ({
+      setActiveMainTab: (tab: string) => {
+        activeMainTabCalls.push(tab);
+      },
+      setSessionSwitcherOpen: (open: boolean) => {
+        sessionSwitcherCalls.push(open);
+      },
+    }),
+  },
+}));
+
+const { addSelectionToChat, captureSelectionMarkdownForChat } = await import('./addSelectionToChat');
+
+const originalDocument = globalThis.document;
+const originalWindow = globalThis.window;
+
+const installSelectionEnvironment = (options: {
+  activeElement?: Element | null;
+  focusedCodeMirror?: Element | null;
+  selection?: Selection | null;
+} = {}) => {
+  const {
+    activeElement = null,
+    focusedCodeMirror = null,
+    selection = null,
+  } = options;
+
+  const documentLike = {
+    activeElement,
+    querySelector: (selector: string) => {
+      if (selector === '.cm-editor.cm-focused') {
+        return focusedCodeMirror;
+      }
+      return null;
+    },
+  };
+  const windowLike = {
+    getSelection: () => selection,
+  };
+  Object.defineProperty(globalThis, 'document', { value: documentLike, configurable: true });
+  Object.defineProperty(globalThis, 'window', { value: windowLike, configurable: true });
+};
+
+const clearCalls = () => {
+  focusChatInputCalls.length = 0;
+  pendingInputCalls.length = 0;
+  activeMainTabCalls.length = 0;
+  sessionSwitcherCalls.length = 0;
+  codeMirrorDispatches.length = 0;
+  codeMirrorView = null;
+};
+
+afterEach(() => {
+  Object.defineProperty(globalThis, 'document', { value: originalDocument, configurable: true });
+  Object.defineProperty(globalThis, 'window', { value: originalWindow, configurable: true });
+});
+
+describe('captureSelectionMarkdownForChat', () => {
+  beforeEach(() => {
+    clearCalls();
+  });
+
+  test('returns null when nothing is selected', () => {
+    installSelectionEnvironment();
+    expect(captureSelectionMarkdownForChat()).toBeNull();
+  });
+
+  test('captures a textarea selection outside the composer and collapses it', () => {
+    const textarea = {
+      tagName: 'TEXTAREA',
+      value: 'alpha beta gamma',
+      selectionStart: 6,
+      selectionEnd: 10,
+      closest: () => null,
+    } as unknown as HTMLTextAreaElement;
+
+    installSelectionEnvironment({ activeElement: textarea });
+    expect(captureSelectionMarkdownForChat()).toBe('```md\nbeta\n```');
+    expect(textarea.selectionStart).toBe(10);
+    expect(textarea.selectionEnd).toBe(10);
+  });
+
+  test('ignores selections inside the chat composer', () => {
+    const textarea = {
+      tagName: 'TEXTAREA',
+      value: 'draft text',
+      selectionStart: 0,
+      selectionEnd: 5,
+      closest: (selector: string) => (selector === '[data-chat-input="true"]' ? textarea : null),
+    } as unknown as HTMLTextAreaElement;
+
+    installSelectionEnvironment({ activeElement: textarea });
+    expect(captureSelectionMarkdownForChat()).toBeNull();
+  });
+
+  test('captures a focused CodeMirror selection outside the composer and collapses it', () => {
+    const focusedEditor = {
+      closest: () => null,
+    } as unknown as HTMLElement;
+
+    codeMirrorView = {
+      state: {
+        selection: { main: { from: 4, to: 11 } },
+        sliceDoc: (from: number, to: number) => 'const x'.slice(0, to - from),
+      },
+      dispatch: (transaction) => {
+        codeMirrorDispatches.push(transaction);
+        codeMirrorView!.state.selection.main = {
+          from: transaction.selection.anchor,
+          to: transaction.selection.anchor,
+        };
+      },
+    };
+
+    // sliceDoc should return the selected slice; use explicit text instead of slice math.
+    codeMirrorView.state.sliceDoc = () => 'const x';
+
+    installSelectionEnvironment({ focusedCodeMirror: focusedEditor });
+    expect(captureSelectionMarkdownForChat()).toBe('```\nconst x\n```');
+    expect(codeMirrorDispatches).toEqual([{ selection: { anchor: 11 } }]);
+    expect(codeMirrorView.state.selection.main).toEqual({ from: 11, to: 11 });
+  });
+
+  test('ignores a focused CodeMirror editor inside the chat composer', () => {
+    const focusedEditor = {
+      closest: (selector: string) => (selector === '[data-chat-input="true"]' ? focusedEditor : null),
+    } as unknown as HTMLElement;
+
+    codeMirrorView = {
+      state: {
+        selection: { main: { from: 0, to: 5 } },
+        sliceDoc: () => 'draft',
+      },
+      dispatch: (transaction) => {
+        codeMirrorDispatches.push(transaction);
+      },
+    };
+
+    installSelectionEnvironment({ focusedCodeMirror: focusedEditor });
+    expect(captureSelectionMarkdownForChat()).toBeNull();
+    expect(codeMirrorDispatches).toEqual([]);
+  });
+
+  test('captures a DOM selection from chat-message content and clears it', () => {
+    const parent = {
+      closest: (selector: string) => (selector === 'pre code' ? null : null),
+    };
+    const textNode = {
+      nodeType: 3,
+      parentElement: parent,
+    };
+    let rangeCount = 1;
+    let collapsed = false;
+    const selection = {
+      get rangeCount() {
+        return rangeCount;
+      },
+      get isCollapsed() {
+        return collapsed;
+      },
+      toString: () => 'Hello world',
+      getRangeAt: () => ({
+        commonAncestorContainer: textNode,
+        startContainer: textNode,
+        endContainer: textNode,
+        cloneContents: () => ({ childNodes: [] }),
+      }),
+      removeAllRanges: () => {
+        rangeCount = 0;
+        collapsed = true;
+      },
+    } as unknown as Selection;
+
+    installSelectionEnvironment({ selection });
+    expect(captureSelectionMarkdownForChat()).toBe('```md\nHello world\n```');
+    expect(selection.rangeCount).toBe(0);
+    expect(selection.isCollapsed).toBe(true);
+  });
+
+  test('ignores a DOM selection inside the chat composer', () => {
+    const composerHost = {};
+    const parent = {
+      closest: (selector: string) => (selector === '[data-chat-input="true"]' ? composerHost : null),
+    };
+    const textNode = {
+      nodeType: 3,
+      parentElement: parent,
+    };
+    const selection = {
+      rangeCount: 1,
+      isCollapsed: false,
+      toString: () => 'draft',
+      getRangeAt: () => ({
+        commonAncestorContainer: textNode,
+        startContainer: textNode,
+        endContainer: textNode,
+        cloneContents: () => ({ childNodes: [] }),
+      }),
+      removeAllRanges: () => undefined,
+    } as unknown as Selection;
+
+    installSelectionEnvironment({ selection });
+    expect(captureSelectionMarkdownForChat()).toBeNull();
+  });
+});
+
+describe('addSelectionToChat', () => {
+  beforeEach(() => {
+    clearCalls();
+  });
+
+  test('appends captured selection and focuses chat input', async () => {
+    const textarea = {
+      tagName: 'TEXTAREA',
+      value: 'selected',
+      selectionStart: 0,
+      selectionEnd: 8,
+      closest: () => null,
+    } as unknown as HTMLTextAreaElement;
+    installSelectionEnvironment({ activeElement: textarea });
+
+    expect(addSelectionToChat()).toBe(true);
+    expect(activeMainTabCalls).toEqual(['chat']);
+    expect(sessionSwitcherCalls).toEqual([false]);
+    expect(pendingInputCalls).toEqual([{ text: '```md\nselected\n```', mode: 'append' }]);
+
+    await Promise.resolve();
+    expect(focusChatInputCalls.length).toBe(1);
+  });
+
+  test('second capture after textarea collapse does not append again', () => {
+    const textarea = {
+      tagName: 'TEXTAREA',
+      value: 'selected',
+      selectionStart: 0,
+      selectionEnd: 8,
+      closest: () => null,
+    } as unknown as HTMLTextAreaElement;
+    installSelectionEnvironment({ activeElement: textarea });
+
+    expect(addSelectionToChat()).toBe(true);
+    expect(addSelectionToChat()).toBe(false);
+    expect(pendingInputCalls).toEqual([{ text: '```md\nselected\n```', mode: 'append' }]);
+  });
+
+  test('focuses chat input when nothing is selected', async () => {
+    installSelectionEnvironment();
+
+    expect(addSelectionToChat()).toBe(false);
+    expect(pendingInputCalls).toEqual([]);
+    expect(activeMainTabCalls).toEqual(['chat']);
+
+    await Promise.resolve();
+    expect(focusChatInputCalls.length).toBe(1);
+  });
+});

packages/ui/src/lib/addSelectionToChat.ts

@@ -0,0 +1,166 @@
+import { EditorView } from '@codemirror/view';
+import { focusChatInput } from '@/components/chat/composer/editor/dom';
+import {
+  formatCodeSelectionMarkdown,
+  rangeToMarkdown,
+  trimSelectionValue,
+  wrapMarkdownSelectionForChat,
+} from '@/components/chat/message/selectionMarkdown';
+import { useInputStore } from '@/sync/input-store';
+import { useUIStore } from '@/stores/useUIStore';
+
+const CHAT_INPUT_HOST_SELECTOR = '[data-chat-input="true"]';
+
+const isInsideChatComposer = (node: Node | null): boolean => {
+  if (!node) {
+    return false;
+  }
+  const asElement = node as Element;
+  const element = typeof asElement.closest === 'function'
+    ? asElement
+    : (node as Node).parentElement;
+  return Boolean(element?.closest(CHAT_INPUT_HOST_SELECTOR));
+};
+
+const readTextControlSelection = (element: Element): string | null => {
+  if (isInsideChatComposer(element)) {
+    return null;
+  }
+
+  const tag = element.tagName?.toLowerCase();
+  if (tag === 'textarea') {
+    const control = element as HTMLTextAreaElement;
+    const start = control.selectionStart ?? 0;
+    const end = control.selectionEnd ?? 0;
+    const text = trimSelectionValue(control.value.slice(start, end));
+    if (!text) {
+      return null;
+    }
+    // Collapse so a duplicate menu delivery cannot append the same range twice.
+    control.selectionStart = end;
+    control.selectionEnd = end;
+    return text;
+  }
+
+  if (tag === 'input') {
+    const control = element as HTMLInputElement;
+    const type = control.type?.toLowerCase() ?? 'text';
+    if (!['text', 'search', 'url', 'tel', 'password'].includes(type)) {
+      return null;
+    }
+    const start = control.selectionStart ?? 0;
+    const end = control.selectionEnd ?? 0;
+    const text = trimSelectionValue(control.value.slice(start, end));
+    if (!text) {
+      return null;
+    }
+    control.selectionStart = end;
+    control.selectionEnd = end;
+    return text;
+  }
+
+  return null;
+};
+
+const captureActiveElementSelection = (): string | null => {
+  if (typeof document === 'undefined') {
+    return null;
+  }
+
+  const activeElement = document.activeElement;
+  if (!activeElement || typeof (activeElement as Element).tagName !== 'string') {
+    return null;
+  }
+
+  const text = readTextControlSelection(activeElement as Element);
+  return text ? wrapMarkdownSelectionForChat(text) : null;
+};
+
+const captureCodeMirrorSelection = (): string | null => {
+  if (typeof document === 'undefined') {
+    return null;
+  }
+
+  const focusedEditor = document.querySelector<HTMLElement>('.cm-editor.cm-focused');
+  if (!focusedEditor || isInsideChatComposer(focusedEditor)) {
+    return null;
+  }
+
+  const view = EditorView.findFromDOM(focusedEditor);
+  if (!view) {
+    return null;
+  }
+
+  const { from, to } = view.state.selection.main;
+  if (from === to) {
+    return null;
+  }
+
+  const text = trimSelectionValue(view.state.sliceDoc(from, to));
+  if (!text) {
+    return null;
+  }
+
+  view.dispatch({
+    selection: { anchor: to },
+  });
+
+  return formatCodeSelectionMarkdown(text);
+};
+
+const captureDomSelection = (): string | null => {
+  if (typeof window === 'undefined') {
+    return null;
+  }
+
+  const selection = window.getSelection();
+  if (!selection || selection.rangeCount === 0 || selection.isCollapsed) {
+    return null;
+  }
+
+  const range = selection.getRangeAt(0);
+  if (isInsideChatComposer(range.commonAncestorContainer)) {
+    return null;
+  }
+
+  const plainText = trimSelectionValue(selection.toString());
+  if (!plainText) {
+    return null;
+  }
+
+  const markdown = rangeToMarkdown(range, plainText);
+  selection.removeAllRanges();
+  return wrapMarkdownSelectionForChat(markdown);
+};
+
+/**
+ * Capture the current non-composer selection as chat-ready markdown.
+ * Returns null when nothing usable is selected.
+ */
+export const captureSelectionMarkdownForChat = (): string | null => {
+  return captureCodeMirrorSelection()
+    ?? captureActiveElementSelection()
+    ?? captureDomSelection();
+};
+
+/**
+ * Append the current selection to the chat composer.
+ * When nothing is selected, focuses the chat input (Cursor-style Ctrl/Cmd+L).
+ * Returns true when selected text was appended.
+ */
+export const addSelectionToChat = (): boolean => {
+  const markdown = captureSelectionMarkdownForChat();
+
+  useUIStore.getState().setActiveMainTab('chat');
+  useUIStore.getState().setSessionSwitcherOpen(false);
+
+  if (markdown) {
+    useInputStore.getState().setPendingInputText(markdown, 'append');
+  }
+
+  queueMicrotask(() => {
+    focusChatInput();
+  });
+
+  return markdown !== null;
+};

packages/ui/src/lib/debug.ts

@@ -441,7 +441,11 @@ export const debugUtils = {
     const sources = {
       attachment,
       worktreeMetadata,
-      authoritative: owningStoreDirectory ?? recordDirectory,
+      // Record first, matching the resolver: holding a session proves
+      // containment, not ownership, so the parent repository holds its
+      // worktrees' sessions too. Reporting membership first made this
+      // diagnostic contradict the routing it exists to explain.
+      authoritative: recordDirectory ?? owningStoreDirectory,
       selected,
       remembered: remembered.runtime,
     };

packages/ui/src/lib/desktop.test.ts

@@ -0,0 +1,15 @@
+import { describe, expect, test } from 'bun:test';
+
+import { isBrowserClientRuntime } from './desktop';
+
+describe('browser client runtime', () => {
+  test('uses browser file behavior only outside the Electron shell', () => {
+    expect(isBrowserClientRuntime('web', false)).toBe(true);
+    expect(isBrowserClientRuntime('web', true)).toBe(false);
+  });
+
+  test('keeps desktop and VS Code runtime behavior out of browser-only flows', () => {
+    expect(isBrowserClientRuntime('desktop', false)).toBe(false);
+    expect(isBrowserClientRuntime('vscode', false)).toBe(false);
+  });
+});

packages/ui/src/lib/desktop.ts

@@ -1,4 +1,4 @@
-import type { ProjectEntry, TerminalShell } from '@/lib/api/types';
+import type { ProjectEntry, RuntimeAPIs, TerminalShell } from '@/lib/api/types';
 import { getInjectedBootOutcome } from '@/lib/desktopBoot';
 import type { DraftStarterRef } from '@/lib/draftStarters';
 import type { MobileKeyboardMode } from '@/lib/mobileKeyboardMode';
@@ -562,6 +562,15 @@ export const isWebRuntime = (): boolean => {
   return !isVSCodeRuntime();
 };
 
+/**
+ * Electron reuses the web RuntimeAPIs implementation, so distinguish a browser
+ * client from an Electron renderer with both the runtime descriptor and shell.
+ */
+export const isBrowserClientRuntime = (
+  platform: RuntimeAPIs['runtime']['platform'],
+  desktopShell = isDesktopShell(),
+): boolean => platform === 'web' && !desktopShell;
+
 export const getDesktopHomeDirectory = async (): Promise<string | null> => {
   if (typeof window !== 'undefined') {
     const embedded = window.__OPENCHAMBER_HOME__;

packages/ui/src/lib/i18n/messages/de.settings.ts

@@ -1050,6 +1050,7 @@ export const settingsDict = {
   'settings.openchamber.keyboardShortcuts.action.open_settings.label': 'Einstellungen öffnen',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal.label': 'Terminal-Dock umschalten',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label': 'Terminal erweitert umschalten',
+  'settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label': 'Auswahl zum Chat hinzufügen',
   'settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label': 'Seitenleiste umschalten',
   'settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label': 'Rechte Seitenleiste umschalten',
   'settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label': 'Git-Tab der rechten Seitenleiste öffnen',

packages/ui/src/lib/i18n/messages/de.ts

@@ -426,6 +426,11 @@ export const dict = {
   'sessions.sidebar.bulkActions.archivedPlural': '{count} Sitzungen archiviert',
   'sessions.sidebar.bulkActions.failedArchiveSingle': 'Fehler beim Archivieren von {count} Sitzung',
   'sessions.sidebar.bulkActions.failedArchivePlural': 'Fehler beim Archivieren von {count} Sitzungen',
+  'sessions.sidebar.bulkActions.restore': 'Wiederherstellen',
+  'sessions.sidebar.bulkActions.restoredSingle': '{count} Sitzung wiederhergestellt',
+  'sessions.sidebar.bulkActions.restoredPlural': '{count} Sitzungen wiederhergestellt',
+  'sessions.sidebar.bulkActions.failedRestoreSingle': 'Fehler beim Wiederherstellen von {count} Sitzung',
+  'sessions.sidebar.bulkActions.failedRestorePlural': 'Fehler beim Wiederherstellen von {count} Sitzungen',
   'sessions.sidebar.folders.none': 'Noch keine Ordner',
   'sessions.sidebar.folders.newFolderEllipsis': 'Neuer Ordner...',
   'sessions.sidebar.folders.removeFromFolder': 'Aus Ordner entfernen',
@@ -517,6 +522,8 @@ export const dict = {
   'sessions.sidebar.session.delete.error': 'Fehler beim Löschen der Sitzung',
   'sessions.sidebar.session.archive.success': 'Sitzung archiviert',
   'sessions.sidebar.session.archive.error': 'Fehler beim Archivieren der Sitzung',
+  'sessions.sidebar.session.restore.success': 'Sitzung wiederhergestellt',
+  'sessions.sidebar.session.restore.error': 'Fehler beim Wiederherstellen der Sitzung',
   'sessions.sidebar.group.pr.checksPassed': '{success}/{total} Checks bestanden',
   'sessions.sidebar.group.pr.failingCount': '{count} fehlgeschlagen',
   'sessions.sidebar.group.pr.pendingCount': '{count} ausstehend',
@@ -1085,6 +1092,7 @@ export const dict = {
   'sidebarFilesTree.menu.rename': 'Umbenennen',
   'sidebarFilesTree.menu.copyPath': 'Pfad kopieren',
   'sidebarFilesTree.menu.save': 'Speichern',
+  'sidebarFilesTree.menu.download': 'Herunterladen',
   'sidebarFilesTree.menu.newFile': 'Neue Datei',
   'sidebarFilesTree.menu.newFolder': 'Neuer Ordner',
   'sidebarFilesTree.menu.delete': 'Löschen',
@@ -1531,6 +1539,7 @@ export const dict = {
   'helpDialog.item.openCommandPalette': 'Befehlspalette öffnen',
   'helpDialog.item.showKeyboardShortcuts': 'Tastaturkürzel anzeigen (dieses Dialogfeld)',
   'helpDialog.item.toggleSessionSidebar': 'Sitzungs-Seitenleiste umschalten',
+  'helpDialog.item.addSelectionToChat': 'Auswahl zum Chat hinzufügen',
   'helpDialog.item.cycleAgent': 'Agent wechseln (Chat-Eingabe)',
   'helpDialog.item.openModelSelector': 'Modell-Auswahldialog öffnen',
   'helpDialog.item.navigateModels': 'Modelle navigieren (in Auswahl)',
@@ -2785,6 +2794,7 @@ export const dict = {
   'sessions.archivePage.deleteProject': 'Alle archivierten Sitzungen in diesem Projekt löschen',
   'sessions.archivePage.deleteProjectAria': 'Alle archivierten Sitzungen in {label} löschen',
   'sessions.archivePage.deleteSessionAria': '{title} löschen',
+  'sessions.archivePage.restoreSessionAria': '{title} wiederherstellen',
   'header.sessionActions.openAria': 'Sitzungsaktionen öffnen',
   'sessions.sidebar.session.menu.copyId': 'Sitzungs-ID kopieren',
   'sessions.sidebar.session.copyId.success': 'Sitzungs-ID kopiert',

packages/ui/src/lib/i18n/messages/en.settings.ts

@@ -1115,6 +1115,7 @@ export const settingsDict = {
   'settings.openchamber.keyboardShortcuts.action.open_settings.label': 'Open settings',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal.label': 'Toggle terminal dock',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label': 'Toggle terminal expanded',
+  'settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label': 'Add selection to chat',
   'settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label': 'Toggle sidebar',
   'settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label': 'Toggle context panel',
   'settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label': 'Open Git surface',

packages/ui/src/lib/i18n/messages/en.ts

@@ -449,6 +449,7 @@ export const dict = {
   'sessions.archivePage.deleteProject': 'Delete all archived sessions in this project',
   'sessions.archivePage.deleteProjectAria': 'Delete all archived sessions in {label}',
   'sessions.archivePage.deleteSessionAria': 'Delete {title}',
+  'sessions.archivePage.restoreSessionAria': 'Restore {title}',
   'sessions.switcher.openAria': 'Open session switcher',
   'sessions.switcher.empty': 'No recent sessions',
   'sessions.switcher.draftTitle': 'New session',
@@ -470,6 +471,11 @@ export const dict = {
   'sessions.sidebar.bulkActions.archivedPlural': 'Archived {count} sessions',
   'sessions.sidebar.bulkActions.failedArchiveSingle': 'Failed to archive {count} session',
   'sessions.sidebar.bulkActions.failedArchivePlural': 'Failed to archive {count} sessions',
+  'sessions.sidebar.bulkActions.restore': 'Restore',
+  'sessions.sidebar.bulkActions.restoredSingle': 'Restored {count} session',
+  'sessions.sidebar.bulkActions.restoredPlural': 'Restored {count} sessions',
+  'sessions.sidebar.bulkActions.failedRestoreSingle': 'Failed to restore {count} session',
+  'sessions.sidebar.bulkActions.failedRestorePlural': 'Failed to restore {count} sessions',
   'sessions.sidebar.folders.none': 'No folders yet',
   'sessions.sidebar.folders.newFolderEllipsis': 'New folder...',
   'sessions.sidebar.folders.removeFromFolder': 'Remove from folder',
@@ -573,6 +579,8 @@ export const dict = {
   'sessions.sidebar.session.delete.error': 'Failed to delete session',
   'sessions.sidebar.session.archive.success': 'Session archived',
   'sessions.sidebar.session.archive.error': 'Failed to archive session',
+  'sessions.sidebar.session.restore.success': 'Session restored',
+  'sessions.sidebar.session.restore.error': 'Failed to restore session',
   'sessions.sidebar.group.pr.checksPassed': '{success}/{total} checks passed',
   'sessions.sidebar.group.pr.failingCount': '{count} failing',
   'sessions.sidebar.group.pr.pendingCount': '{count} pending',
@@ -1225,6 +1233,7 @@ export const dict = {
   'sidebarFilesTree.menu.rename': 'Rename',
   'sidebarFilesTree.menu.copyPath': 'Copy Path',
   'sidebarFilesTree.menu.save': 'Save',
+  'sidebarFilesTree.menu.download': 'Download',
   'sidebarFilesTree.menu.newFile': 'New File',
   'sidebarFilesTree.menu.newFolder': 'New Folder',
   'sidebarFilesTree.menu.delete': 'Delete',
@@ -1678,6 +1687,7 @@ export const dict = {
   'helpDialog.item.openCommandPalette': 'Open Command Palette',
   'helpDialog.item.showKeyboardShortcuts': 'Show Keyboard Shortcuts (this dialog)',
   'helpDialog.item.toggleSessionSidebar': 'Toggle Session Sidebar',
+  'helpDialog.item.addSelectionToChat': 'Add Selection to Chat',
   'helpDialog.item.cycleAgent': 'Cycle Agent (chat input)',
   'helpDialog.item.openModelSelector': 'Open Model Selector',
   'helpDialog.item.navigateModels': 'Navigate Models (in picker)',

packages/ui/src/lib/i18n/messages/es.settings.ts

@@ -1083,6 +1083,7 @@ export const settingsDict = {
   "settings.openchamber.keyboardShortcuts.action.open_settings.label": "Abrir configuración",
   "settings.openchamber.keyboardShortcuts.action.toggle_terminal.label": "Mostrar u ocultar panel de terminal",
   "settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label": "Expandir o contraer terminal",
+  "settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label": "Agregar selección al chat",
   "settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label": "Mostrar u ocultar barra lateral",
   "settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label": 'Alternar panel de contexto',
   "settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label": 'Abrir superficie de Git',

packages/ui/src/lib/i18n/messages/es.ts

@@ -450,6 +450,7 @@ export const dict: Record<I18nKey, string> = {
   "sessions.archivePage.deleteProject": "Eliminar todas las sesiones archivadas de este proyecto",
   "sessions.archivePage.deleteProjectAria": "Eliminar todas las sesiones archivadas de {label}",
   "sessions.archivePage.deleteSessionAria": "Eliminar {title}",
+  "sessions.archivePage.restoreSessionAria": "Restaurar {title}",
   "sessions.switcher.openAria": "Abrir selector de sesiones",
   "sessions.switcher.empty": "No hay sesiones recientes",
   "sessions.switcher.draftTitle": "Nueva sesión",
@@ -471,6 +472,11 @@ export const dict: Record<I18nKey, string> = {
   "sessions.sidebar.bulkActions.archivedPlural": "Se archivaron {count} sesiones",
   "sessions.sidebar.bulkActions.failedArchiveSingle": "No se pudo archivar {count} sesión",
   "sessions.sidebar.bulkActions.failedArchivePlural": "No se pudo archivar {count} sesiones",
+  "sessions.sidebar.bulkActions.restore": "Restaurar",
+  "sessions.sidebar.bulkActions.restoredSingle": "Se restauró {count} sesión",
+  "sessions.sidebar.bulkActions.restoredPlural": "Se restauraron {count} sesiones",
+  "sessions.sidebar.bulkActions.failedRestoreSingle": "No se pudo restaurar {count} sesión",
+  "sessions.sidebar.bulkActions.failedRestorePlural": "No se pudo restaurar {count} sesiones",
   "sessions.sidebar.folders.none": "No hay carpetas aún",
   "sessions.sidebar.folders.newFolderEllipsis": "Nueva carpeta...",
   "sessions.sidebar.folders.removeFromFolder": "Quitar de carpeta",
@@ -574,6 +580,8 @@ export const dict: Record<I18nKey, string> = {
   "sessions.sidebar.session.delete.error": "No se pudo eliminar la sesión",
   "sessions.sidebar.session.archive.success": "Sesión archivada",
   "sessions.sidebar.session.archive.error": "No se pudo archivar la sesión",
+  "sessions.sidebar.session.restore.success": "Sesión restaurada",
+  "sessions.sidebar.session.restore.error": "No se pudo restaurar la sesión",
   "sessions.sidebar.group.pr.checksPassed": "{success}/{total} comprobaciones aprobadas",
   "sessions.sidebar.group.pr.failingCount": "{count} con fallos",
   "sessions.sidebar.group.pr.pendingCount": "{count} pendientes",
@@ -1191,6 +1199,7 @@ export const dict: Record<I18nKey, string> = {
   "sidebarFilesTree.menu.rename": "Cambiar nombre",
   "sidebarFilesTree.menu.copyPath": "Copiar ruta",
   "sidebarFilesTree.menu.save": "Guardar",
+  "sidebarFilesTree.menu.download": "Descargar",
   "sidebarFilesTree.menu.newFile": "Nuevo archivo",
   "sidebarFilesTree.menu.newFolder": "Nueva carpeta",
   "sidebarFilesTree.menu.delete": "Eliminar",
@@ -1656,6 +1665,7 @@ export const dict: Record<I18nKey, string> = {
   "helpDialog.item.openCommandPalette": "Abrir paleta de comandos",
   "helpDialog.item.showKeyboardShortcuts": "Mostrar atajos de teclado (este diálogo)",
   "helpDialog.item.toggleSessionSidebar": "Mostrar u ocultar barra lateral de sesión",
+  "helpDialog.item.addSelectionToChat": "Agregar selección al chat",
   "helpDialog.item.cycleAgent": "Cambiar agente (entrada de chat)",
   "helpDialog.item.openModelSelector": "Abrir selector de modelos",
   "helpDialog.item.navigateModels": "Navegar modelos (en selector)",

packages/ui/src/lib/i18n/messages/fr.settings.ts

@@ -1004,6 +1004,7 @@ export const settingsDict = {
   'settings.openchamber.keyboardShortcuts.action.open_settings.label': 'Ouvrir les paramètres',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal.label': 'Basculer la station d\'accueil du terminal',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label': 'Terminal à bascule étendu',
+  'settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label': 'Ajouter la sélection au chat',
   'settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label': 'Basculer la barre latérale',
   'settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label': 'Afficher/masquer le panneau de contexte',
   'settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label': 'Ouvrir la surface Git',

packages/ui/src/lib/i18n/messages/fr.ts

@@ -285,6 +285,7 @@ export const dict = {
   'sessions.archivePage.deleteProject': 'Supprimer toutes les sessions archivées de ce projet',
   'sessions.archivePage.deleteProjectAria': 'Supprimer toutes les sessions archivées de {label}',
   'sessions.archivePage.deleteSessionAria': 'Supprimer {title}',
+  'sessions.archivePage.restoreSessionAria': 'Restaurer {title}',
   'sessions.switcher.openAria': 'Sélecteur de session ouvert',
   'sessions.switcher.empty': 'Aucune session récente',
   'sessions.switcher.draftTitle': 'Nouvelle session',
@@ -306,6 +307,11 @@ export const dict = {
   'sessions.sidebar.bulkActions.archivedPlural': 'Sessions {count} archivées',
   'sessions.sidebar.bulkActions.failedArchiveSingle': 'Échec de l\'archivage de la session {count}',
   'sessions.sidebar.bulkActions.failedArchivePlural': 'Échec de l\'archivage des sessions {count}',
+  'sessions.sidebar.bulkActions.restore': 'Restaurer',
+  'sessions.sidebar.bulkActions.restoredSingle': 'Session {count} restaurée',
+  'sessions.sidebar.bulkActions.restoredPlural': 'Sessions {count} restaurées',
+  'sessions.sidebar.bulkActions.failedRestoreSingle': 'Échec de la restauration de la session {count}',
+  'sessions.sidebar.bulkActions.failedRestorePlural': 'Échec de la restauration des sessions {count}',
   'sessions.sidebar.folders.none': 'Aucun dossier pour l\'instant',
   'sessions.sidebar.folders.newFolderEllipsis': 'Nouveau dossier...',
   'sessions.sidebar.folders.removeFromFolder': 'Supprimer du dossier',
@@ -409,6 +415,8 @@ export const dict = {
   'sessions.sidebar.session.delete.error': 'Échec de la suppression de la session',
   'sessions.sidebar.session.archive.success': 'Session archivée',
   'sessions.sidebar.session.archive.error': 'Échec de l\'archivage de la session',
+  'sessions.sidebar.session.restore.success': 'Session restaurée',
+  'sessions.sidebar.session.restore.error': 'Échec de la restauration de la session',
   'sessions.sidebar.group.pr.checksPassed': 'Contrôles {success}/{total} réussis',
   'sessions.sidebar.group.pr.failingCount': 'Échec de {count}',
   'sessions.sidebar.group.pr.pendingCount': '{count} en attente',
@@ -1047,6 +1055,7 @@ export const dict = {
   'sidebarFilesTree.menu.rename': 'Rebaptiser',
   'sidebarFilesTree.menu.copyPath': 'Copier le chemin',
   'sidebarFilesTree.menu.save': 'Sauvegarder',
+  'sidebarFilesTree.menu.download': 'Télécharger',
   'sidebarFilesTree.menu.newFile': 'Nouveau fichier',
   'sidebarFilesTree.menu.newFolder': 'Nouveau dossier',
   'sidebarFilesTree.menu.delete': 'Supprimer',
@@ -1491,6 +1500,7 @@ export const dict = {
   'helpDialog.item.openCommandPalette': 'Ouvrir la palette de commandes',
   'helpDialog.item.showKeyboardShortcuts': 'Afficher les raccourcis clavier (cette boîte de dialogue)',
   'helpDialog.item.toggleSessionSidebar': 'Toggle la barre latérale de la session',
+  'helpDialog.item.addSelectionToChat': 'Ajouter la sélection au chat',
   'helpDialog.item.cycleAgent': 'Agent de cycle (entrée de chat)',
   'helpDialog.item.openModelSelector': 'Ouvrir le sélecteur de modèle',
   'helpDialog.item.navigateModels': 'Naviguer dans les modèles (dans le sélecteur)',

packages/ui/src/lib/i18n/messages/ja.settings.ts

@@ -1116,6 +1116,7 @@ export const settingsDict = {
   'settings.openchamber.keyboardShortcuts.action.open_settings.label': '設定を開く',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal.label': 'ターミナルドックの切替',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label': 'ターミナル拡大の切替',
+  'settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label': '選択範囲をチャットに追加',
   'settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label': 'サイドバーの切替',
   'settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label': 'コンテキストパネルの表示切替',
   'settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label': 'Git サーフェスを開く',

packages/ui/src/lib/i18n/messages/ja.ts

@@ -450,6 +450,7 @@ export const dict: Record<I18nKey, string> = {
   'sessions.archivePage.deleteProject': 'このプロジェクトのアーカイブ済みセッションをすべて削除',
   'sessions.archivePage.deleteProjectAria': '{label} のアーカイブ済みセッションをすべて削除',
   'sessions.archivePage.deleteSessionAria': '{title} を削除',
+  'sessions.archivePage.restoreSessionAria': '{title} を復元',
   'sessions.switcher.openAria': 'セッションスイッチャーを開く',
   'sessions.switcher.empty': '最近のセッションはありません',
   'sessions.switcher.draftTitle': '新しいセッション',
@@ -471,6 +472,11 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.bulkActions.archivedPlural': '{count}セッションをアーカイブしました',
   'sessions.sidebar.bulkActions.failedArchiveSingle': '{count}セッションのアーカイブに失敗しました',
   'sessions.sidebar.bulkActions.failedArchivePlural': '{count}セッションのアーカイブに失敗しました',
+  'sessions.sidebar.bulkActions.restore': '復元',
+  'sessions.sidebar.bulkActions.restoredSingle': '{count}セッションを復元しました',
+  'sessions.sidebar.bulkActions.restoredPlural': '{count}セッションを復元しました',
+  'sessions.sidebar.bulkActions.failedRestoreSingle': '{count}セッションの復元に失敗しました',
+  'sessions.sidebar.bulkActions.failedRestorePlural': '{count}セッションの復元に失敗しました',
   'sessions.sidebar.folders.none': 'まだフォルダがありません',
   'sessions.sidebar.folders.newFolderEllipsis': '新しいフォルダ...',
   'sessions.sidebar.folders.removeFromFolder': 'フォルダから削除',
@@ -574,6 +580,8 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.session.delete.error': 'セッションの削除に失敗しました',
   'sessions.sidebar.session.archive.success': 'セッションをアーカイブしました',
   'sessions.sidebar.session.archive.error': 'セッションのアーカイブに失敗しました',
+  'sessions.sidebar.session.restore.success': 'セッションを復元しました',
+  'sessions.sidebar.session.restore.error': 'セッションの復元に失敗しました',
   'sessions.sidebar.group.pr.checksPassed': '{success}/{total}のチェックに合格',
   'sessions.sidebar.group.pr.failingCount': '{count}件失敗',
   'sessions.sidebar.group.pr.pendingCount': '{count}件保留中',
@@ -1221,6 +1229,7 @@ export const dict: Record<I18nKey, string> = {
   'sidebarFilesTree.menu.rename': '名前の変更',
   'sidebarFilesTree.menu.copyPath': 'パスをコピー',
   'sidebarFilesTree.menu.save': '保存',
+  'sidebarFilesTree.menu.download': 'ダウンロード',
   'sidebarFilesTree.menu.newFile': '新しいファイル',
   'sidebarFilesTree.menu.newFolder': '新しいフォルダ',
   'sidebarFilesTree.menu.delete': '削除',
@@ -1674,6 +1683,7 @@ export const dict: Record<I18nKey, string> = {
   'helpDialog.item.openCommandPalette': 'コマンドパレットを開く',
   'helpDialog.item.showKeyboardShortcuts': 'キーボードショートカットを表示（このダイアログ）',
   'helpDialog.item.toggleSessionSidebar': 'セッションサイドバーの切り替え',
+  'helpDialog.item.addSelectionToChat': '選択範囲をチャットに追加',
   'helpDialog.item.cycleAgent': 'エージェント切り替え（チャット入力）',
   'helpDialog.item.openModelSelector': 'モデルセレクターを開く',
   'helpDialog.item.navigateModels': 'モデルを移動（ピッカー内）',

packages/ui/src/lib/i18n/messages/ko.settings.ts

@@ -1083,6 +1083,7 @@ export const settingsDict = {
   'settings.openchamber.keyboardShortcuts.action.open_settings.label': '설정 열기',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal.label': '터미널 dock 토글',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label': '터미널 확장 토글',
+  'settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label': '선택 내용을 채팅에 추가',
   'settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label': '사이드바 토글',
   'settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label': '컨텍스트 패널 표시 전환',
   'settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label': 'Git 서피스 열기',

packages/ui/src/lib/i18n/messages/ko.ts

@@ -450,6 +450,7 @@ export const dict: Record<I18nKey, string> = {
   'sessions.archivePage.deleteProject': '이 프로젝트의 보관된 세션 모두 삭제',
   'sessions.archivePage.deleteProjectAria': '{label}의 보관된 세션 모두 삭제',
   'sessions.archivePage.deleteSessionAria': '{title} 삭제',
+  'sessions.archivePage.restoreSessionAria': '{title} 복원',
   'sessions.switcher.openAria': '세션 전환기 열기',
   'sessions.switcher.empty': '최근 세션 없음',
   'sessions.switcher.draftTitle': '새 세션',
@@ -471,6 +472,11 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.bulkActions.archivedPlural': '세션 {count}개 보관됨',
   'sessions.sidebar.bulkActions.failedArchiveSingle': '세션 {count}개 보관 실패',
   'sessions.sidebar.bulkActions.failedArchivePlural': '세션 {count}개 보관 실패',
+  'sessions.sidebar.bulkActions.restore': '복원',
+  'sessions.sidebar.bulkActions.restoredSingle': '세션 {count}개 복원됨',
+  'sessions.sidebar.bulkActions.restoredPlural': '세션 {count}개 복원됨',
+  'sessions.sidebar.bulkActions.failedRestoreSingle': '세션 {count}개 복원 실패',
+  'sessions.sidebar.bulkActions.failedRestorePlural': '세션 {count}개 복원 실패',
   'sessions.sidebar.folders.none': '아직 폴더 없음',
   'sessions.sidebar.folders.newFolderEllipsis': '새 폴더…',
   'sessions.sidebar.folders.removeFromFolder': '폴더에서 제거',
@@ -574,6 +580,8 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.session.delete.error': '세션 삭제 실패',
   'sessions.sidebar.session.archive.success': '세션 보관됨',
   'sessions.sidebar.session.archive.error': '세션 보관 실패',
+  'sessions.sidebar.session.restore.success': '세션 복원됨',
+  'sessions.sidebar.session.restore.error': '세션 복원 실패',
   'sessions.sidebar.group.pr.checksPassed': '검사 통과: {success}/{total}',
   'sessions.sidebar.group.pr.failingCount': '실패 {count}개',
   'sessions.sidebar.group.pr.pendingCount': '{count} 대기 중',
@@ -1228,6 +1236,7 @@ export const dict: Record<I18nKey, string> = {
   'sidebarFilesTree.menu.rename': '이름 변경',
   'sidebarFilesTree.menu.copyPath': '경로 복사',
   'sidebarFilesTree.menu.save': '저장',
+  'sidebarFilesTree.menu.download': '다운로드',
   'sidebarFilesTree.menu.newFile': '새 파일',
   'sidebarFilesTree.menu.newFolder': '새 폴더',
   'sidebarFilesTree.menu.delete': '삭제',
@@ -1680,6 +1689,7 @@ export const dict: Record<I18nKey, string> = {
   'helpDialog.item.openCommandPalette': '명령 팔레트 열기',
   'helpDialog.item.showKeyboardShortcuts': '키보드 단축키 보기(이 대화상자)',
   'helpDialog.item.toggleSessionSidebar': '토글 세션 사이드바',
+  'helpDialog.item.addSelectionToChat': '선택 내용을 채팅에 추가',
   'helpDialog.item.cycleAgent': '에이전트 순환(채팅 입력)',
   'helpDialog.item.openModelSelector': '모델 선택기 열기',
   'helpDialog.item.navigateModels': '모델 이동(선택기)',

packages/ui/src/lib/i18n/messages/pl.settings.ts

@@ -825,6 +825,7 @@ export const settingsDict = {
   'settings.openchamber.keyboardShortcuts.action.toggle_context_plan.label': 'Przełącz panel kontekstu planu',
   'settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label': 'Przełącz panel kontekstu',
   'settings.openchamber.keyboardShortcuts.action.toggle_services_menu.label': 'Przełącz menu usług',
+  'settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label': 'Dodaj zaznaczenie do czatu',
   'settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label': 'Przełącz pasek boczny',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal.label': 'Przełącz dokowanie terminala',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label': 'Przełącz rozszerzony terminal',

packages/ui/src/lib/i18n/messages/pl.ts

@@ -266,6 +266,7 @@ export const dict: Record<I18nKey, string> = {
   'sessions.archivePage.deleteProject': 'Usuń wszystkie zarchiwizowane sesje tego projektu',
   'sessions.archivePage.deleteProjectAria': 'Usuń wszystkie zarchiwizowane sesje w {label}',
   'sessions.archivePage.deleteSessionAria': 'Usuń {title}',
+  'sessions.archivePage.restoreSessionAria': 'Przywróć {title}',
   'sessions.switcher.openAria': 'Otwórz przełącznik sesji',
   'sessions.switcher.empty': 'Brak ostatnich sesji',
   'sessions.switcher.draftTitle': 'Nowa sesja',
@@ -333,6 +334,11 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.bulkActions.archivedPlural': 'Zarchiwizowano {count} sesji',
   'sessions.sidebar.bulkActions.failedArchiveSingle': 'Nie udało się zarchiwizować {count} sesji',
   'sessions.sidebar.bulkActions.failedArchivePlural': 'Nie udało się zarchiwizować {count} sesji',
+  'sessions.sidebar.bulkActions.restore': 'Przywróć',
+  'sessions.sidebar.bulkActions.restoredSingle': 'Przywrócono {count} sesję',
+  'sessions.sidebar.bulkActions.restoredPlural': 'Przywrócono {count} sesji',
+  'sessions.sidebar.bulkActions.failedRestoreSingle': 'Nie udało się przywrócić {count} sesji',
+  'sessions.sidebar.bulkActions.failedRestorePlural': 'Nie udało się przywrócić {count} sesji',
   'sessions.scheduledTasks.dialog.title': 'Zaplanowane zadania',
   'sessions.scheduledTasks.dialog.description': 'Zadania po stronie serwera, które tworzą nową sesję i wysyłają skonfigurowany prompt.',
   'sessions.scheduledTasks.dialog.project.label': 'Projekt',
@@ -574,6 +580,8 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.session.delete.error': 'Nie udało się usunąć sesji',
   'sessions.sidebar.session.archive.success': 'Sesja zarchiwizowana',
   'sessions.sidebar.session.archive.error': 'Nie udało się zarchiwizować sesji',
+  'sessions.sidebar.session.restore.success': 'Sesja przywrócona',
+  'sessions.sidebar.session.restore.error': 'Nie udało się przywrócić sesji',
   'sessions.sidebar.group.pr.checksPassed': '{success}/{total} testów przeszło',
   'sessions.sidebar.group.pr.failingCount': '{count} niepowodzeń',
   'sessions.sidebar.group.pr.pendingCount': '{count} oczekujących',
@@ -2325,6 +2333,7 @@ export const dict: Record<I18nKey, string> = {
   'helpDialog.item.toggleRightSidebar': 'Przełącz panel kontekstu',
   'helpDialog.item.toggleServicesMenu': 'Przełącz menu usług',
   'helpDialog.item.toggleSessionSidebar': 'Przełącz panel sesji',
+  'helpDialog.item.addSelectionToChat': 'Dodaj zaznaczenie do czatu',
   'helpDialog.item.toggleTerminalDock': 'Przełącz dolny terminal',
   'helpDialog.item.toggleTerminalExpanded': 'Przełącz rozszerzenie terminala',
   'helpDialog.keyCombiner.or': 'lub',
@@ -2708,6 +2717,7 @@ export const dict: Record<I18nKey, string> = {
   'sidebarFilesTree.menu.newFolder': 'Nowy folder',
   'sidebarFilesTree.menu.rename': 'Zmień nazwę',
   'sidebarFilesTree.menu.save': 'Zapisz',
+  'sidebarFilesTree.menu.download': 'Pobierz',
   'sidebarFilesTree.search.clearAria': 'Wyczyść wyszukiwanie',
   'sidebarFilesTree.search.placeholder': 'Szukaj plików...',
   'sidebarFilesTree.state.loading': 'Ładowanie...',

packages/ui/src/lib/i18n/messages/pt-BR.settings.ts

@@ -1083,6 +1083,7 @@ export const settingsDict = {
   "settings.openchamber.keyboardShortcuts.action.open_settings.label": "Abrir configurações",
   "settings.openchamber.keyboardShortcuts.action.toggle_terminal.label": "Mostrar ou ocultar painel de terminal",
   "settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label": "Expandir ou recolher terminal",
+  "settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label": "Adicionar seleção ao chat",
   "settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label": "Mostrar ou ocultar barra lateral",
   "settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label": 'Alternar painel de contexto',
   "settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label": 'Abrir superfície do Git',

packages/ui/src/lib/i18n/messages/pt-BR.ts

@@ -450,6 +450,7 @@ export const dict: Record<I18nKey, string> = {
   "sessions.archivePage.deleteProject": "Excluir todas as sessões arquivadas deste projeto",
   "sessions.archivePage.deleteProjectAria": "Excluir todas as sessões arquivadas de {label}",
   "sessions.archivePage.deleteSessionAria": "Excluir {title}",
+  "sessions.archivePage.restoreSessionAria": "Restaurar {title}",
   "sessions.switcher.openAria": "Abrir seletor de sessões",
   "sessions.switcher.empty": "Nenhuma sessão recente",
   "sessions.switcher.draftTitle": "Nova sessão",
@@ -471,6 +472,11 @@ export const dict: Record<I18nKey, string> = {
   "sessions.sidebar.bulkActions.archivedPlural": "{count} sessões arquivadas",
   "sessions.sidebar.bulkActions.failedArchiveSingle": "Não foi possível arquivar {count} sessão",
   "sessions.sidebar.bulkActions.failedArchivePlural": "Não foi possível arquivar {count} sessões",
+  "sessions.sidebar.bulkActions.restore": "Restaurar",
+  "sessions.sidebar.bulkActions.restoredSingle": "{count} sessão restaurada",
+  "sessions.sidebar.bulkActions.restoredPlural": "{count} sessões restauradas",
+  "sessions.sidebar.bulkActions.failedRestoreSingle": "Não foi possível restaurar {count} sessão",
+  "sessions.sidebar.bulkActions.failedRestorePlural": "Não foi possível restaurar {count} sessões",
   "sessions.sidebar.folders.none": "Não há pastas ainda",
   "sessions.sidebar.folders.newFolderEllipsis": "Nova pasta...",
   "sessions.sidebar.folders.removeFromFolder": "Remover da pasta",
@@ -574,6 +580,8 @@ export const dict: Record<I18nKey, string> = {
   "sessions.sidebar.session.delete.error": "Não foi possível excluir a sessão",
   "sessions.sidebar.session.archive.success": "Sessão archivada",
   "sessions.sidebar.session.archive.error": "Não foi possível arquivar a sessão",
+  "sessions.sidebar.session.restore.success": "Sessão restaurada",
+  "sessions.sidebar.session.restore.error": "Não foi possível restaurar a sessão",
   "sessions.sidebar.group.pr.checksPassed": "{success}/{total} checks pasadas",
   "sessions.sidebar.group.pr.failingCount": "{count} com fallos",
   "sessions.sidebar.group.pr.pendingCount": "{count} pendentes",
@@ -1191,6 +1199,7 @@ export const dict: Record<I18nKey, string> = {
   "sidebarFilesTree.menu.rename": "Renomear",
   "sidebarFilesTree.menu.copyPath": "Copiar caminho",
   "sidebarFilesTree.menu.save": "Salvar",
+  "sidebarFilesTree.menu.download": "Baixar",
   "sidebarFilesTree.menu.newFile": "Novo arquivo",
   "sidebarFilesTree.menu.newFolder": "Nova pasta",
   "sidebarFilesTree.menu.delete": "Excluir",
@@ -1656,6 +1665,7 @@ export const dict: Record<I18nKey, string> = {
   "helpDialog.item.openCommandPalette": "Abrir paleta de comandos",
   "helpDialog.item.showKeyboardShortcuts": "Mostrar atalhos de teclado (este diálogo)",
   "helpDialog.item.toggleSessionSidebar": "Mostrar ou ocultar barra lateral de sessão",
+  "helpDialog.item.addSelectionToChat": "Adicionar seleção ao chat",
   "helpDialog.item.cycleAgent": "Alternar agente (entrada do chat)",
   "helpDialog.item.openModelSelector": "Abrir seletor de modelos",
   "helpDialog.item.navigateModels": "Navegar por modelos (no seletor)",

packages/ui/src/lib/i18n/messages/uk.settings.ts

@@ -1083,6 +1083,7 @@ export const settingsDict = {
   "settings.openchamber.keyboardShortcuts.action.open_settings.label": "Відкрити налаштування",
   "settings.openchamber.keyboardShortcuts.action.toggle_terminal.label": "Перемкнути панель терміналу",
   "settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label": "Розгорнути або згорнути термінал",
+  "settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label": "Додати виділення в чат",
   "settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label": "Перемкнути бічну панель",
   "settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label": 'Перемкнути контекстну панель',
   "settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label": 'Відкрити поверхню Git',

packages/ui/src/lib/i18n/messages/uk.ts

@@ -450,6 +450,7 @@ export const dict: Record<I18nKey, string> = {
   "sessions.archivePage.deleteProject": "Видалити всі архівні сесії цього проєкту",
   "sessions.archivePage.deleteProjectAria": "Видалити всі архівні сесії у {label}",
   "sessions.archivePage.deleteSessionAria": "Видалити {title}",
+  "sessions.archivePage.restoreSessionAria": "Відновити {title}",
   "sessions.switcher.openAria": "Відкрити перемикач сесій",
   "sessions.switcher.empty": "Немає недавніх сесій",
   "sessions.switcher.draftTitle": "Нова сесія",
@@ -471,6 +472,11 @@ export const dict: Record<I18nKey, string> = {
   "sessions.sidebar.bulkActions.archivedPlural": "Заархівовано сесій: {count}",
   "sessions.sidebar.bulkActions.failedArchiveSingle": "Не вдалося архівувати сесія {count}",
   "sessions.sidebar.bulkActions.failedArchivePlural": "Не вдалося архівувати сесії {count}",
+  "sessions.sidebar.bulkActions.restore": "Відновити",
+  "sessions.sidebar.bulkActions.restoredSingle": "Відновлено сесію: {count}",
+  "sessions.sidebar.bulkActions.restoredPlural": "Відновлено сесій: {count}",
+  "sessions.sidebar.bulkActions.failedRestoreSingle": "Не вдалося відновити сесія {count}",
+  "sessions.sidebar.bulkActions.failedRestorePlural": "Не вдалося відновити сесії {count}",
   "sessions.sidebar.folders.none": "Папок ще немає",
   "sessions.sidebar.folders.newFolderEllipsis": "Нова папка...",
   "sessions.sidebar.folders.removeFromFolder": "Видалити з папки",
@@ -574,6 +580,8 @@ export const dict: Record<I18nKey, string> = {
   "sessions.sidebar.session.delete.error": "Не вдалося видалити сесію",
   "sessions.sidebar.session.archive.success": "Сесію заархівовано",
   "sessions.sidebar.session.archive.error": "Не вдалося заархівувати сесію",
+  "sessions.sidebar.session.restore.success": "Сесію відновлено",
+  "sessions.sidebar.session.restore.error": "Не вдалося відновити сесію",
   "sessions.sidebar.group.pr.checksPassed": "Перевірки {success}/{total} пройдено",
   "sessions.sidebar.group.pr.failingCount": "{count} з помилкою",
   "sessions.sidebar.group.pr.pendingCount": "{count} очікує",
@@ -1191,6 +1199,7 @@ export const dict: Record<I18nKey, string> = {
   "sidebarFilesTree.menu.rename": "Перейменувати",
   "sidebarFilesTree.menu.copyPath": "Копіювати шлях",
   "sidebarFilesTree.menu.save": "Зберегти",
+  "sidebarFilesTree.menu.download": "Завантажити",
   "sidebarFilesTree.menu.newFile": "Новий файл",
   "sidebarFilesTree.menu.newFolder": "Нова папка",
   "sidebarFilesTree.menu.delete": "Видалити",
@@ -1656,6 +1665,7 @@ export const dict: Record<I18nKey, string> = {
   "helpDialog.item.openCommandPalette": "Відкрити палітру команд",
   "helpDialog.item.showKeyboardShortcuts": "Показати комбінації клавіш (це діалогове вікно)",
   "helpDialog.item.toggleSessionSidebar": "Перемкнути бічну панель сесій",
+  "helpDialog.item.addSelectionToChat": "Додати виділення в чат",
   "helpDialog.item.cycleAgent": "Перемкнути агента (введення в чат)",
   "helpDialog.item.openModelSelector": "Відкрити засіб вибору моделі",
   "helpDialog.item.navigateModels": "Навігація моделями (у засобі вибору)",

packages/ui/src/lib/i18n/messages/zh-CN.settings.ts

@@ -1083,6 +1083,7 @@ export const settingsDict = {
   'settings.openchamber.keyboardShortcuts.action.open_settings.label': '打开设置',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal.label': '切换终端停靠区',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label': '切换终端展开',
+  'settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label': '将选中内容添加到聊天',
   'settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label': '切换侧边栏',
   'settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label': '切换上下文面板',
   'settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label': '打开 Git 界面',

packages/ui/src/lib/i18n/messages/zh-CN.ts

@@ -450,6 +450,7 @@ export const dict: Record<I18nKey, string> = {
   'sessions.archivePage.deleteProject': '删除此项目的所有已归档会话',
   'sessions.archivePage.deleteProjectAria': '删除 {label} 的所有已归档会话',
   'sessions.archivePage.deleteSessionAria': '删除 {title}',
+  'sessions.archivePage.restoreSessionAria': '还原 {title}',
   'sessions.switcher.openAria': '打开会话切换器',
   'sessions.switcher.empty': '没有最近会话',
   'sessions.switcher.draftTitle': '新会话',
@@ -471,6 +472,11 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.bulkActions.archivedPlural': '已归档 {count} 个会话',
   'sessions.sidebar.bulkActions.failedArchiveSingle': '归档 {count} 个会话失败',
   'sessions.sidebar.bulkActions.failedArchivePlural': '归档 {count} 个会话失败',
+  'sessions.sidebar.bulkActions.restore': '还原',
+  'sessions.sidebar.bulkActions.restoredSingle': '已还原 {count} 个会话',
+  'sessions.sidebar.bulkActions.restoredPlural': '已还原 {count} 个会话',
+  'sessions.sidebar.bulkActions.failedRestoreSingle': '还原 {count} 个会话失败',
+  'sessions.sidebar.bulkActions.failedRestorePlural': '还原 {count} 个会话失败',
   'sessions.sidebar.folders.none': '暂无文件夹',
   'sessions.sidebar.folders.newFolderEllipsis': '新建文件夹...',
   'sessions.sidebar.folders.removeFromFolder': '从文件夹中移除',
@@ -574,6 +580,8 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.session.delete.error': '删除会话失败',
   'sessions.sidebar.session.archive.success': '会话已归档',
   'sessions.sidebar.session.archive.error': '归档会话失败',
+  'sessions.sidebar.session.restore.success': '会话已还原',
+  'sessions.sidebar.session.restore.error': '还原会话失败',
   'sessions.sidebar.group.pr.checksPassed': '{success}/{total} 项检查已通过',
   'sessions.sidebar.group.pr.failingCount': '{count} 项失败',
   'sessions.sidebar.group.pr.pendingCount': '{count} 项等待中',
@@ -1191,6 +1199,7 @@ export const dict: Record<I18nKey, string> = {
   'sidebarFilesTree.menu.rename': '重命名',
   'sidebarFilesTree.menu.copyPath': '复制路径',
   'sidebarFilesTree.menu.save': '保存',
+  'sidebarFilesTree.menu.download': '下载',
   'sidebarFilesTree.menu.newFile': '新建文件',
   'sidebarFilesTree.menu.newFolder': '新建文件夹',
   'sidebarFilesTree.menu.delete': '删除',
@@ -1644,6 +1653,7 @@ export const dict: Record<I18nKey, string> = {
   'helpDialog.item.openCommandPalette': '打开命令面板',
   'helpDialog.item.showKeyboardShortcuts': '显示键盘快捷键（此对话框）',
   'helpDialog.item.toggleSessionSidebar': '切换会话侧边栏',
+  'helpDialog.item.addSelectionToChat': '将选中内容添加到聊天',
   'helpDialog.item.cycleAgent': '循环切换智能体（聊天输入）',
   'helpDialog.item.openModelSelector': '打开模型选择器',
   'helpDialog.item.navigateModels': '导航模型（选择器中）',

packages/ui/src/lib/i18n/messages/zh-TW.settings.ts

@@ -990,6 +990,7 @@
   'settings.openchamber.keyboardShortcuts.action.open_settings.label': '開啟設定',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal.label': '切換終端機停靠區',
   'settings.openchamber.keyboardShortcuts.action.toggle_terminal_expanded.label': '切換終端機展開',
+  'settings.openchamber.keyboardShortcuts.action.add_selection_to_chat.label': '將選取內容加入聊天',
   'settings.openchamber.keyboardShortcuts.action.toggle_sidebar.label': '切換側邊欄',
   'settings.openchamber.keyboardShortcuts.action.toggle_right_sidebar.label': '切換上下文面板',
   'settings.openchamber.keyboardShortcuts.action.open_right_sidebar_git.label': '開啟 Git 介面',

packages/ui/src/lib/i18n/messages/zh-TW.ts

@@ -463,6 +463,7 @@ export const dict: Record<I18nKey, string> = {
   'sessions.archivePage.deleteProject': '刪除此專案的所有已封存工作階段',
   'sessions.archivePage.deleteProjectAria': '刪除 {label} 的所有已封存工作階段',
   'sessions.archivePage.deleteSessionAria': '刪除 {title}',
+  'sessions.archivePage.restoreSessionAria': '還原 {title}',
   'sessions.switcher.openAria': '開啟會話切換器',
   'sessions.switcher.empty': '沒有最近會話',
   'sessions.switcher.draftTitle': '新會話',
@@ -484,6 +485,11 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.bulkActions.archivedPlural': '已封存 {count} 個會話',
   'sessions.sidebar.bulkActions.failedArchiveSingle': '封存 {count} 個會話失敗',
   'sessions.sidebar.bulkActions.failedArchivePlural': '封存 {count} 個會話失敗',
+  'sessions.sidebar.bulkActions.restore': '還原',
+  'sessions.sidebar.bulkActions.restoredSingle': '已還原 {count} 個會話',
+  'sessions.sidebar.bulkActions.restoredPlural': '已還原 {count} 個會話',
+  'sessions.sidebar.bulkActions.failedRestoreSingle': '還原 {count} 個會話失敗',
+  'sessions.sidebar.bulkActions.failedRestorePlural': '還原 {count} 個會話失敗',
   'sessions.sidebar.folders.none': '暫無資料夾',
   'sessions.sidebar.folders.newFolderEllipsis': '新增資料夾...',
   'sessions.sidebar.folders.removeFromFolder': '從資料夾中移除',
@@ -587,6 +593,8 @@ export const dict: Record<I18nKey, string> = {
   'sessions.sidebar.session.delete.error': '刪除會話失敗',
   'sessions.sidebar.session.archive.success': '會話已封存',
   'sessions.sidebar.session.archive.error': '封存會話失敗',
+  'sessions.sidebar.session.restore.success': '會話已還原',
+  'sessions.sidebar.session.restore.error': '還原會話失敗',
   'sessions.sidebar.group.pr.checksPassed': '{success}/{total} 項檢查已通過',
   'sessions.sidebar.group.pr.failingCount': '{count} 項失敗',
   'sessions.sidebar.group.pr.pendingCount': '{count} 項等待中',
@@ -1203,6 +1211,7 @@ export const dict: Record<I18nKey, string> = {
   'sidebarFilesTree.menu.rename': '重新命名',
   'sidebarFilesTree.menu.copyPath': '複製路徑',
   'sidebarFilesTree.menu.save': '儲存',
+  'sidebarFilesTree.menu.download': '下載',
   'sidebarFilesTree.menu.newFile': '新增檔案',
   'sidebarFilesTree.menu.newFolder': '新增資料夾',
   'sidebarFilesTree.menu.delete': '刪除',
@@ -1648,6 +1657,7 @@ export const dict: Record<I18nKey, string> = {
   'helpDialog.item.openCommandPalette': '開啟命令面板',
   'helpDialog.item.showKeyboardShortcuts': '顯示鍵盤快速鍵（此對話方塊）',
   'helpDialog.item.toggleSessionSidebar': '切換會話側邊欄',
+  'helpDialog.item.addSelectionToChat': '將選取內容加入聊天',
   'helpDialog.item.cycleAgent': '循環切換 Agent（聊天輸入）',
   'helpDialog.item.openModelSelector': '開啟模型選擇器',
   'helpDialog.item.navigateModels': '導覽模型（選擇器中）',

packages/ui/src/lib/opencode/client.ts

@@ -12,6 +12,7 @@ import type {
   TextPartInput,
   FilePartInput,
 } from "@opencode-ai/sdk/v2";
+import { isAmbiguousTransportFailure, markAmbiguousTransportFailure } from "@/lib/relay/transport-error";
 import type { PermissionRequest } from "@/types/permission";
 import type { QuestionRequest } from "@/types/question";
 
@@ -878,7 +879,13 @@ class OpencodeService {
           // failure) — there is no HTTP response to report. Never fabricate a
           // status: surface it as a transport error so callers treat it like
           // any other network failure instead of a server 500.
-          throw new Error(`Message send transport failure: ${formatSdkError(result.error)}`);
+          // Preserve the transport's "dispatched, outcome unknown" tag through
+          // the wrap: without it the caller cannot tell a lost response from a
+          // send that never reached the server, and re-sends a running prompt.
+          const transportError = new Error(`Message send transport failure: ${formatSdkError(result.error)}`);
+          throw isAmbiguousTransportFailure(result.error)
+            ? markAmbiguousTransportFailure(transportError)
+            : transportError;
         }
         response = new Response(JSON.stringify(result.error), { status });
       } else {

packages/ui/src/lib/quota/providers/index.ts

@@ -22,5 +22,6 @@ export const QUOTA_PROVIDERS: QuotaProviderMeta[] = [
   { id: 'wafer', name: 'Wafer.ai' },
   { id: 'opencode-go', name: 'OpenCode Go' },
   { id: 'crof', name: 'CrofAI' },
+  { id: 'deepseek', name: 'DeepSeek' },
   { id: 'neuralwatt', name: 'NeuralWatt' },
 ];

packages/ui/src/lib/relay/transport-error.ts

@@ -0,0 +1,42 @@
+/**
+ * Ambiguous transport failures.
+ *
+ * When a request dies after it was already handed to the transport, the client
+ * knows the response was lost — it does NOT know whether the server processed
+ * the request. Over the relay tunnel this is the common case: a reconnect, a
+ * host-side stream abort, or a dead channel all fail an in-flight POST that may
+ * already be running server-side.
+ *
+ * Callers must be able to tell that state apart from a definite failure, and
+ * string-matching the message text is not a contract — a renamed abort reason
+ * silently reclassifies a send. Transports therefore tag these errors, and
+ * callers read the tag (see `isAmbiguousTransportFailure`).
+ *
+ * `prompt_async` is the motivating case: treating an ambiguous failure as a
+ * definite one rolls back the user message and lets the queue re-send a prompt
+ * the engine is already answering, producing two independent AI responses.
+ */
+
+const AMBIGUOUS_TRANSPORT_FLAG = '__openchamberAmbiguousTransport';
+
+/**
+ * Mark an error as "dispatched, outcome unknown". Returns the same error so it
+ * can be thrown inline.
+ */
+export const markAmbiguousTransportFailure = <T extends Error>(error: T): T => {
+  Object.defineProperty(error, AMBIGUOUS_TRANSPORT_FLAG, {
+    value: true,
+    enumerable: false,
+    configurable: true,
+  });
+  return error;
+};
+
+/**
+ * True when a transport tagged this error as dispatched-but-unconfirmed.
+ * Deliberately tag-only: text heuristics belong to the caller that owns them.
+ */
+export const isAmbiguousTransportFailure = (error: unknown): boolean => {
+  if (!error || typeof error !== 'object') return false;
+  return (error as Record<string, unknown>)[AMBIGUOUS_TRANSPORT_FLAG] === true;
+};

packages/ui/src/lib/relay/tunnel-client.test.ts

@@ -11,6 +11,7 @@ import {
 } from './crypto';
 import { createHostHandshake } from './handshake';
 import { TunnelFrameType } from './protocol';
+import { isAmbiguousTransportFailure } from './transport-error';
 import {
   createFragmentAssembler,
   decodeFrameBatch,
@@ -339,6 +340,24 @@ describe('createRelayTunnelClient', () => {
     await expect(reader.read()).rejects.toThrow();
   });
 
+  // A POST that dies after dispatch may already have been processed by the
+  // server. Callers must be able to tell that apart from a definite failure —
+  // a prompt re-sent on this error produces a second AI response (#2425).
+  test('tags an in-flight request killed by reconnect as an ambiguous failure', async () => {
+    const { client, killWire } = await setupClient({ silent: true });
+    track(client);
+    const pending = client.fetch('/api/session/s1/prompt_async', { method: 'POST', body: '{}' });
+    let caught: unknown = null;
+    const settled = pending.catch((error: unknown) => {
+      caught = error;
+    });
+    await wait(20);
+    killWire();
+    await settled;
+    expect(caught).toBeInstanceOf(Error);
+    expect(isAmbiguousTransportFailure(caught)).toBe(true);
+  });
+
   test('opens, echoes, and closes a tunneled WebSocket', async () => {
     const { client } = await setupClient();
     track(client);

packages/ui/src/lib/relay/tunnel-client.ts

@@ -35,6 +35,7 @@ import {
   isWsClosePayload,
   normalizeTunnelRequest,
 } from './tunnel-payloads';
+import { markAmbiguousTransportFailure } from './transport-error';
 
 const EMPTY_PAYLOAD = new Uint8Array(0);
 const textEncoder = new TextEncoder();
@@ -721,6 +722,13 @@ export const createRelayTunnelClient = (options: RelayTunnelClientOptions): Rela
         }
       };
 
+      // The request head is written to the channel below before any of these
+      // failures can fire, so losing the stream never proves the server did
+      // not process the request — only that the response was lost. Callers
+      // that would otherwise retry (prompt sends) must see that distinction.
+      const dispatchedFailure = (message: string): Error =>
+        markAmbiguousTransportFailure(new Error(message));
+
       onAbort = () => {
         sendAbort('aborted');
         finishError(abortError());
@@ -735,7 +743,7 @@ export const createRelayTunnelClient = (options: RelayTunnelClientOptions): Rela
               head = decodeJsonPayload(payload, isHttpResponsePayload);
             } catch (error) {
               sendAbort('malformed response head');
-              finishError(toError(error));
+              finishError(dispatchedFailure(toError(error).message));
               return;
             }
             const nullBody = head.status === 204 || head.status === 205 || head.status === 304;
@@ -773,7 +781,7 @@ export const createRelayTunnelClient = (options: RelayTunnelClientOptions): Rela
           if (frameType === TunnelFrameType.StreamEnd) {
             if (finished) return;
             if (!responseDelivered) {
-              finishError(new Error('tunnel stream ended before response head'));
+              finishError(dispatchedFailure('tunnel stream ended before response head'));
               return;
             }
             finished = true;
@@ -792,11 +800,15 @@ export const createRelayTunnelClient = (options: RelayTunnelClientOptions): Rela
             } catch {
               // Keep the generic reason.
             }
-            finishError(new Error(reason));
+            finishError(dispatchedFailure(reason));
           }
         },
         fail(error) {
-          finishError(error);
+          // Channel death (reconnect, keepalive timeout) with this stream still
+          // open — same rule as above: dispatched, outcome unknown. A fresh
+          // error is tagged instead of the shared one so the tag cannot leak to
+          // waiters whose request never reached the wire.
+          finishError(dispatchedFailure(error.message));
         },
       });
 
@@ -824,7 +836,7 @@ export const createRelayTunnelClient = (options: RelayTunnelClientOptions): Rela
           }
         } catch (error) {
           sendAbort('request body failed');
-          finishError(toError(error));
+          finishError(dispatchedFailure(toError(error).message));
         }
       })();
     });

packages/ui/src/lib/runtime-switch.runtime-key.test.ts

@@ -0,0 +1,80 @@
+import { afterEach, beforeEach, describe, expect, test } from 'bun:test';
+
+import { getRuntimeKey } from './runtime-switch';
+
+/**
+ * `getRuntimeKey` runs on store, event, and render paths, so its cost is
+ * multiplied by everything the UI does. These tests pin both directions of the
+ * derived-key cache: repeated calls with unchanged inputs must do no work, and
+ * any change to the inputs it derives from must still be observed.
+ *
+ * This lives in its own file because the cache is only reachable while the
+ * runtime endpoint has not been explicitly initialised, and module state is
+ * shared across tests within a file.
+ */
+
+type RuntimeWindow = typeof globalThis & {
+  __OPENCHAMBER_API_BASE_URL__?: string;
+  __OPENCHAMBER_LOCAL_ORIGIN__?: string;
+};
+
+const previousWindow = Object.getOwnPropertyDescriptor(globalThis, 'window');
+const NativeURL = globalThis.URL;
+let urlConstructions = 0;
+
+const setRuntimeWindow = (apiBaseUrl: string | undefined, localOrigin: string | undefined): void => {
+  const runtimeWindow = {} as RuntimeWindow;
+  if (apiBaseUrl !== undefined) runtimeWindow.__OPENCHAMBER_API_BASE_URL__ = apiBaseUrl;
+  if (localOrigin !== undefined) runtimeWindow.__OPENCHAMBER_LOCAL_ORIGIN__ = localOrigin;
+  Object.defineProperty(globalThis, 'window', { value: runtimeWindow, configurable: true, writable: true });
+};
+
+beforeEach(() => {
+  urlConstructions = 0;
+  class CountingURL extends NativeURL {
+    constructor(url: string | URL, base?: string | URL) {
+      urlConstructions += 1;
+      super(url, base);
+    }
+  }
+  globalThis.URL = CountingURL as unknown as typeof URL;
+});
+
+afterEach(() => {
+  globalThis.URL = NativeURL;
+  if (previousWindow) Object.defineProperty(globalThis, 'window', previousWindow);
+  else Reflect.deleteProperty(globalThis, 'window');
+});
+
+describe('getRuntimeKey caching', () => {
+  test('resolves a same-origin endpoint to the local runtime key', () => {
+    setRuntimeWindow('https://app.example.com/api', 'https://app.example.com');
+    expect(getRuntimeKey()).toBe('local');
+  });
+
+  test('performs no URL work on repeated calls with unchanged inputs', () => {
+    setRuntimeWindow('https://remote.example.com', 'https://app.example.com');
+    const first = getRuntimeKey();
+    expect(first).toBe('url:https://remote.example.com');
+
+    urlConstructions = 0;
+    for (let index = 0; index < 50; index += 1) expect(getRuntimeKey()).toBe(first);
+    expect(urlConstructions).toBe(0);
+  });
+
+  test('recomputes when the injected API base URL changes at runtime', () => {
+    setRuntimeWindow('https://first.example.com', 'https://app.example.com');
+    expect(getRuntimeKey()).toBe('url:https://first.example.com');
+
+    (globalThis as RuntimeWindow & { window: RuntimeWindow }).window.__OPENCHAMBER_API_BASE_URL__ = 'https://second.example.com';
+    expect(getRuntimeKey()).toBe('url:https://second.example.com');
+  });
+
+  test('recomputes when the injected local origin changes at runtime', () => {
+    setRuntimeWindow('https://app.example.com', 'https://other.example.com');
+    expect(getRuntimeKey()).toBe('url:https://app.example.com');
+
+    (globalThis as RuntimeWindow & { window: RuntimeWindow }).window.__OPENCHAMBER_LOCAL_ORIGIN__ = 'https://app.example.com';
+    expect(getRuntimeKey()).toBe('local');
+  });
+});

packages/ui/src/lib/runtime-switch.ts

@@ -76,11 +76,52 @@ const sameOrigin = (left: string, right: string): boolean => {
 };
 
 export const getRuntimeApiBaseUrl = (): string => activeApiBaseUrl || readInjectedApiBaseUrl();
+
+// `getRuntimeKey` keys caches, stores, and persisted state across the whole UI,
+// so it runs on store reads, event handling, and render paths. Before the
+// runtime endpoint is explicitly initialised, every call re-derived the key by
+// trimming two injected globals and constructing three `URL` objects, which
+// made this one of the most expensive functions during streaming.
+//
+// The result depends only on `activeApiBaseUrl` and the two injected globals,
+// and `switchRuntimeEndpoint` writes the injected API base URL at runtime, so
+// the cache is validated against the raw, untrimmed values. That comparison
+// allocates nothing and still recomputes the moment any input changes.
+let cachedRuntimeKey = '';
+let cachedActiveApiBaseUrl: string | null = null;
+let cachedRawApiBaseUrl: string | undefined;
+let cachedRawLocalOrigin: string | undefined;
+
+const readRawRuntimeGlobal = (key: '__OPENCHAMBER_API_BASE_URL__' | '__OPENCHAMBER_LOCAL_ORIGIN__'): string | undefined => {
+  if (typeof window === 'undefined') return undefined;
+  const value = (window as typeof window & {
+    __OPENCHAMBER_API_BASE_URL__?: string;
+    __OPENCHAMBER_LOCAL_ORIGIN__?: string;
+  })[key];
+  return typeof value === 'string' ? value : undefined;
+};
+
 export const getRuntimeKey = (): string => {
   if (activeRuntimeKey) return activeRuntimeKey;
+
+  const rawApiBaseUrl = readRawRuntimeGlobal('__OPENCHAMBER_API_BASE_URL__');
+  const rawLocalOrigin = readRawRuntimeGlobal('__OPENCHAMBER_LOCAL_ORIGIN__');
+  if (
+    cachedActiveApiBaseUrl === activeApiBaseUrl
+    && cachedRawApiBaseUrl === rawApiBaseUrl
+    && cachedRawLocalOrigin === rawLocalOrigin
+  ) {
+    return cachedRuntimeKey;
+  }
+
   const apiBaseUrl = getRuntimeApiBaseUrl();
-  if (sameOrigin(apiBaseUrl, readInjectedLocalOrigin())) return 'local';
-  return normalizeRuntimeUrlKey(apiBaseUrl);
+  cachedRuntimeKey = sameOrigin(apiBaseUrl, readInjectedLocalOrigin())
+    ? 'local'
+    : normalizeRuntimeUrlKey(apiBaseUrl);
+  cachedActiveApiBaseUrl = activeApiBaseUrl;
+  cachedRawApiBaseUrl = rawApiBaseUrl;
+  cachedRawLocalOrigin = rawLocalOrigin;
+  return cachedRuntimeKey;
 };
 
 export const initializeRuntimeEndpoint = (options: { apiBaseUrl?: string | null; runtimeKey?: string | null } = {}): void => {

packages/ui/src/lib/shortcuts.ts

@@ -159,8 +159,15 @@ const SHORTCUT_ACTIONS: ReadonlyArray<ShortcutAction> = [
     description: 'Toggle the files panel',
   },
   {
-    id: 'toggle_sidebar',
+    id: 'add_selection_to_chat',
     defaultCombo: 'mod+l',
+    label: 'Add selection to chat',
+    description: 'Add the selected text to the chat input',
+    customizable: true,
+  },
+  {
+    id: 'toggle_sidebar',
+    defaultCombo: 'mod+alt+l',
     label: 'Toggle sidebar',
     description: 'Toggle the session sidebar',
     customizable: true,

packages/ui/src/lib/theme/themes/openchamber-dark.json

@@ -24,12 +24,12 @@
       "emphasis": "#fd9b66"
     },
     "surface": {
-      "background": "#0c0b0a",
-      "foreground": "#dbd7ca",
-      "muted": "#131211",
+      "background": "#120f0e",
+      "foreground": "#c9c5ba",
+      "muted": "#171615",
       "mutedForeground": "#8f8b81",
       "elevated": "#181715",
-      "elevatedForeground": "#dbd7ca",
+      "elevatedForeground": "#c9c5ba",
       "overlay": "#00000099",
       "subtle": "#171616"
     },
@@ -37,11 +37,11 @@
       "border": "#242323",
       "borderHover": "#504e4c",
       "borderFocus": "#da7c47",
-      "selection": "#da7c472b",
-      "selectionForeground": "#dbd7ca",
+      "selection": "#b9a5992b",
+      "selectionForeground": "#c9c5ba",
       "focus": "#da7c47",
       "focusRing": "#da7c4755",
-      "cursor": "#dbd7ca",
+      "cursor": "#c9c5ba",
       "hover": "#ffffff12",
       "active": "#ffffff1f"
     },
@@ -72,8 +72,8 @@
     },
     "syntax": {
       "base": {
-        "background": "#131211",
-        "foreground": "#dbd7ca",
+        "background": "#120f0e",
+        "foreground": "#c9c5ba",
         "comment": "#728772",
         "keyword": "#34983a",
         "string": "#d58373",
@@ -127,14 +127,14 @@
         "diffModified": "#5d99a9",
         "diffModifiedBackground": "#5d99a920",
         "lineNumber": "#3c3a37",
-        "lineNumberActive": "#dbd7ca"
+        "lineNumberActive": "#c9c5ba"
       }
     },
     "markdown": {
-      "heading1": "#dbd7ca",
-      "heading2": "#dbd7ca",
-      "heading3": "#dbd7ca",
-      "heading4": "#dbd7ca",
+      "heading1": "#c9c5ba",
+      "heading2": "#c9c5ba",
+      "heading3": "#c9c5ba",
+      "heading4": "#c9c5ba",
       "link": "#5d99a9",
       "linkHover": "#6ba7b8",
       "inlineCode": "#76ad4f",
@@ -144,19 +144,19 @@
       "listMarker": "#4d934e99"
     },
     "chat": {
-      "userMessage": "#dbd7ca",
+      "userMessage": "#c9c5ba",
       "userMessageBackground": "#25170e",
-      "assistantMessage": "#dbd7ca",
-      "assistantMessageBackground": "#0c0b0a",
+      "assistantMessage": "#c9c5ba",
+      "assistantMessageBackground": "#120f0e",
       "timestamp": "#8f8b81",
       "divider": "#302e2b"
     },
     "tools": {
-      "background": "#13121150",
+      "background": "#120f0e50",
       "border": "#302e2b99",
       "headerHover": "#ffffff0d",
       "icon": "#ada9a0",
-      "title": "#dbd7ca",
+      "title": "#c9c5ba",
       "description": "#aba9a3",
       "edit": {
         "added": "#4d934e",