* feat: add chat option for user message rendering mode
* feat: add chat option to toggle sticky user header
* feat(ui): overhaul context panel with reusable tabs and embedded session chat
Enable parallel context workflows with persistent tabbed views and isolated session chat while reducing resize and background runtime overhead.
* feat: polish context panel and git sidebar tabs
Refined context panel tab behavior and visuals for smoother switching and resizing
Reused the new tabs component in right sidebar and git sidebar with fit layout
Improved git section spacing, selection controls, and bulk revert confirmation flow
* feat: open diff files in editor at changed lines
Add edit actions in diff views to open files at the first changed line
Support per-file open-in-editor from All Files headers and icon-only action in single-file view
Improve file jump UX with load-aware navigation and reduced visual blink during line targeting
* fix: stabilize pill tabs and prevent git commit pathspec failures
Unified sortable tab variants to match animated styling behavior with responsive spacing and cleaner sidebar chrome
Fixed active tab pill measurement so size/position recalculates correctly when dropdowns reopen
Commit API now filters stale file paths before staging to avoid pathspec errors on deleted files
* fix: align user message action row spacing and hover behavior
* fix: persist user message view preferences in settings
Save plain-text and sticky-header toggles to settings.json when changed
Restore both chat display preferences from settings.json on startup
Validate and accept both preference fields in the settings API
* fix: improve git and sidebar tab layout on mobile
* fix: refine mobile user message action row spacing
Show mobile user-message actions in a consistent external row for sticky and non-sticky modes
Tune button row height and vertical position to match both mobile variants
Reduce sticky-header gradient tail and tighten assistant gap after user messages
* fix: improve chat action hover zones and mobile top shadow logic
Expand desktop trigger area so user action buttons reveal across the full row
Add sticky-header phantom hover row so inline actions appear from the whole button lane
Hide chat top scroll shadow on mobile only when sticky user headers are enabled
* fix: remove commit message input scrollbar flicker
Added optional scrollbar class support to shared textarea wrapper.
Disabled overlay scrollbar for Git commit message input.
Kept auto-resize behavior while preventing one-line empty-state micro-scroll.
* feat: make model provider groups collapsible in selector
Add collapsible provider headers in the chat model dropdown
Persist expanded/collapsed provider state across sessions
Refine provider header UX with inline chevrons and no hover highlight
* feat: arrange chat settings into a compact two-column layout
Places User Message Rendering next to Mermaid Rendering.
Places Diff Layout next to Diff View Mode.
Reduces right-column spacing to better match other settings sections.
* fix: show worktree branch edit controls in draft sessions
Detect worktree mode from current directory when session metadata is not yet bound
Enable immediate branch rename UI in Git sidebar without session switching
* feat: add beta badge to side panel menu action
## What / Why
This PR finishes the desktop refactor: the Tauri app is now a thin shell that launches the web server as a sidecar and loads the UI from `http://127.0.0.1:<port>`. All real backend logic lives in `packages/web/server/index.js`; desktop Rust keeps only native integrations (menu/dialog/notifications/updater/deep-link + window chrome).
This unblocks:
- consistent behavior across web/desktop/vscode (single backend)
- simpler desktop maintenance (no duplicated Rust backend)
- host switching between Local + remote instances in desktop
- reliable cold-start behavior on slow machines (VSCode + desktop)
## Key changes
- Desktop sidecar runtime
- build pipeline to bundle web dist + `openchamber-server` sidecar (`packages/desktop/scripts/build-sidecar.mjs`)
- robust local port selection (prefer saved/default, fallback to random; persisted in `~/.config/openchamber/settings.json`)
- improved PATH handling so the sidecar can locate `opencode` CLI (incl `~/.opencode/bin`, overrides, common bins)
- disable native right-click context menu in production builds (dev keeps it)
- Desktop instance switcher (Tauri-only)
- header button + modal to add/edit/delete remote hosts, set default, probe status/ping, switch back to Local escape hatch
- auth gate includes host switcher so you can recover when a remote host is broken/auth-required
- host list stored desktop-locally (not tied to the currently selected remote server)
- Notifications
- decision logic moved server-side; desktop notifications emitted via sidecar stdout and shown natively by Tauri
- prevent double-notifications on desktop Local origin (UI ignores SSE notification when native path is active)
- restore macOS notification sound
- Updates
- Tauri updater used only when viewing Local instance in desktop shell (avoid “remote web update” triggering desktop restart)
- Settings persistence & UX polish
- persist model favorites/recents via `/api/config/settings` (works for web + desktop; not origin-dependent)
- persist per-project sidebar collapse state in `projects[].sidebarCollapsed` via `/api/config/settings` (with debounce on toggles)
- macOS header sizing/traffic-lights offsets fixed (marketing macOS major injected from desktop; MultiRun header aligned)
- VSCode cold-start: keep retrying provider/agent loads after connection to avoid empty UI on slow machines
- misc lint/type fixes + bun.lock sync
- Desktop bootstrap / resiliency
- show onboarding screen when OpenCode CLI is missing (desktop Local origin), with retry hook to restart OpenCode after install
## Testing notes
- Desktop (macOS): switch Local <-> remote, set default host, verify auth gate recovery, native notifications (with sound), updater gated to Local
- Web: favorites/recents + per-project collapsed state persist across reload/restart
- VSCode: slow startup no longer results in missing providers/agents/models
* feat: added themes system
* feat: smart sidebar auto-hide for files/diff tabs + lower files sidebar threshold
* feat: added Checkbox component and update theming
- Add reusable Checkbox component for toggles across UI
- Replace several inputs with Checkbox in settings and commands panels
- Add DiffIcon and apply surface/border theming to key UI areas
* feat: Add convert-vscode-theme.cjs to convert VS Code themes to OpenChamber format
* refactor: remove unused permission logic from ChatInput
- Remove unused permission rules parsing logic from ChatInput
- Memoize renderTheme in DiffWorkerProvider to avoid unnecessary recalculations
- Remove forceOpaque helper in vscode theme adapter
* fix: guard VSCode theme loading in MarkdownRenderer
* feat: add custom user themes loading and reload
- Load user themes from ~/.config/openchamber/themes at runtime
- Expose /api/config/themes to fetch custom themes
- Allow theme reloading from Settings → Theme → Reload themes in the UI
* feat: add chat virtualization and turn grouping infrastructure
Implement VirtualMessageList with virtualization and overscan for smooth scrolling
Refactor MessageList to render only visible messages and pass scroll refs
Introduce TurnGroupingContext and provider to stabilize per-turn rendering and reduce re-renders
* feat: add web server session activity endpoint for visibility restore
Add /api/session-activity endpoint to expose tracked session activity
Use web server activity first when restoring visibility, with fallback to global status
Update server SSE to set session phase on activity events
* feat(chat): split TurnGroupingContext into UI/Streaming contexts
Add separate UI state and streaming contexts to reduce re-renders.
Skip animations for items visible in collapsed view when expanding.
Track shown parts in collapsed mode to fade in progressively
* feat(ui): cache turn groups with expand state and guard web activity
Add isExpanded to the turn cache key to trigger updates correctly
Expose isGroupExpanded from UI state so groups reflect expand/collapse
Limit web server session activity fetch to web runtime only
Bohdan Triapitsyn