restore: recover deleted documentation, CI/CD, and infrastructure files

Restored from origin/main (b4663fb):
- .github/ workflows and issue templates
- .gitignore (proper exclusions)
- .opencode/agent/web_developer.md
- AGENTS.md, BUILD.md, PROGRESS.md
- dev-docs/ (9 architecture/implementation docs)
- docs/screenshots/ (4 UI screenshots)
- images/ (CodeNomad icons)
- package-lock.json (dependency lockfile)
- tasks/ (25+ project task files)

Also restored original source files that were modified:
- packages/ui/src/App.tsx
- packages/ui/src/lib/logger.ts
- packages/ui/src/stores/instances.ts
- packages/server/src/server/routes/workspaces.ts
- packages/server/src/workspaces/manager.ts
- packages/server/src/workspaces/runtime.ts
- packages/server/package.json

Kept new additions:
- Install-*.bat/.sh (enhanced installers)
- Launch-*.bat/.sh (new launchers)
- README.md (SEO optimized with GLM 4.7)

tasks/done/051-command-palette-refactor.md

@@ -0,0 +1,34 @@
+# Task 051 - Command Palette & Keyboard Hint Refactor
+
+## Goal
+Align the command palette modal and keyboard hint UI with the shared token system, removing bespoke gray/black overlay styling.
+
+## Prerequisites
+- Task 050 complete (selector helpers available for reuse).
+
+## Acceptance Criteria
+- [ ] `src/components/command-palette.tsx` uses token-backed utilities for overlay, surface, list items, and focus states.
+- [ ] `src/components/keyboard-hint.tsx` and any inline `<kbd>` styling leverage reusable helpers (`.kbd` etc.) from `components.css`.
+- [ ] Legacy utility combos in these components (`bg-gray-*`, `dark:bg-gray-*`, `text-gray-*`) are eliminated.
+- [ ] Palette overlay opacity, search field, section headers, and highlighted items match existing behavior in both themes.
+
+## Steps
+1. Extract repeated modal/dropdown patterns into helpers (overlay, surface, list item) if not already present.
+2. Update command palette markup to use the helpers and token-aware Tailwind classes.
+3. Refactor `keyboard-hint.tsx` to rely on shared `.kbd` styling and tokens.
+4. Verify keyboard navigation, highlighted items, and section headers visually.
+
+## Testing Checklist
+- [ ] Run `npm run build`.
+- [ ] In dev mode, open the command palette, search, navigate with arrow keys, and confirm highlight/focus styling.
+
+## Dependencies
+- Depends on Task 050.
+- Blocks folder selection advanced settings refactor (which reuses keyboard hints).
+
+## Estimated Time
+0.75 hours
+
+## Notes
+- Branch suggestion: `feature/task-051-command-palette-refactor`.
+- Include GIF/screenshots if overlay opacity or highlight timing needed adjustment.