v0.5.0: NomadArch - Binary-Free Mode Release

Features:
- Binary-Free Mode: No OpenCode binary required
- NomadArch Native mode with free Zen models
- Native session management
- Provider routing (Zen, Qwen, Z.AI)
- Fixed MCP connection with explicit connectAll()
- Updated installers and launchers for all platforms
- UI binary selector with Native option

Free Models Available:
- GPT-5 Nano (400K context)
- Grok Code Fast 1 (256K context)
- GLM-4.7 (205K context)
- Doubao Seed Code (256K context)
- Big Pickle (200K context)

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

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+# 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.