* feat(ui): redesigned Git view layout
* feat: stabilize git views layout with min-h-0 and scroll
- Introduce min-h-0 and flex-1 on git layout containers
- Apply min-h-0 on PR checks dialog content and related areas
- Configure ScrollableOverlay to disable horizontal scroll and overscroll
## 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
* types: add optional context parameter to generatePullRequestDescription signature
* api: update gitApi to pass optional context to PR description generation
* http: include trimmed context in PR description API request body
* ui: add additional context input for PR generation with desktop disclosure and mobile sheet
* desktop: pass optional context to Tauri generate_pr_description command
* tauri: add optional context parameter and inject into PR description prompt
* server: read optional context from request and inject into PR description prompt
* vscode: update type signature for context parameter (compatibility only)
* fix(vscode): drop context from pr-description payload
Remove context field from PR description payload
Send only base and head to the bridge API for PR descriptions
Clarify payload compatibility across web/desktop environments
* feat: display provider logos for favorite/recent models
Show provider logo next to model name in favorites and recents
Render provider logos in ModelControls, ModelMultiSelect, and ModelSelector lists
Maintain zero-logo state for other sections to avoid clutter
* feat: render user message as markdown instead of plain text
Render agent mentions as markdown links in user text
Apply inside list style for chat content to fix list rendering
Rely on SimpleMarkdownRenderer for consistent rendering
* fix(openchamber): adjust layout and overscroll behavior
Enable overscroll-auto on overlay containers for smoother scrolling
Move page content to full-width wrapper and preserve section borders
Show AboutSettings inside its own bordered block when visible
* feat: integrate GitHub auth status store and UI
Introduce GitHubAuthStore to track connection status and polling
Show GitHub avatar in header when connected
Guard issue/pr dialogs behind GitHub auth status and show notices
* feat: add GitHub multi-account support
Add API and UI flow to activate a GitHub account
Show and switch between multiple GitHub accounts in header
Persist and normalize accounts list with current selection
Introduce a hook to detect text truncation for dynamic UI updates
Replace static marquee spans with a reusable marquee component in files and labels
Enable copying of terminal selection on mouse up and touch end
Add check details to PR context via includeCheckDetails flag
Open a checks dialog showing check run summaries and steps
Improve PR lookup for forked repos by matching head branch
Add GitHubIssuePickerDialog UI for selecting issues
Enable new session from GitHub issue from session sidebar
Implement GitHub issues/list/get/comments APIs across desktop, web, and VS Code
* feat: integrate GitHub OAuth device flow across runtimes
Add GitHub OAuth device flow endpoints across runtimes
Introduce GitHubSettings UI panel and sidebar entry
Persist GitHub auth state in per-runtime storage
* feat: add GitHub PR status and PR description generation
Show PR status for the current branch in the Git view
Generate a pull request description from the diff between base and head
Expose prStatus, prCreate, and prMerge APIs in web and desktop clients
* feat: add GitHub PR ready for review
Add API to mark pull requests as ready for review
Show a Ready button for draft PRs and reflect status in UI
Handle token expiration and GraphQL errors when marking ready