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/053-markdown-style-refactor.md

@@ -0,0 +1,34 @@
+# Task 053 - Markdown & Code Block Styling Refactor
+
+## Goal
+Extract the remaining markdown/code-block styling from `src/index.css` into token-aware utilities and ensure all prose rendering uses the shared system.
+
+## Prerequisites
+- Task 052 complete (panels cleaned up).
+
+## Acceptance Criteria
+- [ ] `src/index.css` no longer contains `.prose`, `.markdown-code-block`, `.code-block-header`, `.code-block-copy`, or `.code-block-inline` blocks; equivalent styling lives in a new `src/styles/markdown.css` (imported from `index.css`) and/or token helpers.
+- [ ] New markdown helpers rely on tokens for colors, borders, and typography (no hard-coded hex values).
+- [ ] Code block copy button, language label, and inline code maintain current interaction and contrast in both themes.
+- [ ] `MessagePart` markdown rendering (`src/components/markdown.tsx`) automatically picks up the new styling without component changes.
+
+## Steps
+1. Move markdown-related CSS into a dedicated `styles/markdown.css` file, rewriting colors with tokens.
+2. Replace any legacy values (e.g., `text-gray-700`) with token references.
+3. Update `src/index.css` to import the new stylesheet after tokens/components layers.
+4. Verify formatted markdown in the message stream (headings, lists, code blocks, copy button).
+
+## Testing Checklist
+- [ ] Run `npm run build`.
+- [ ] Manually view messages with markdown (headings, inline code, block code, tables) in both themes.
+
+## Dependencies
+- Depends on Task 052.
+- Blocks final cleanup task for attachment/keyboard chips.
+
+## Estimated Time
+0.75 hours
+
+## Notes
+- Branch suggestion: `feature/task-053-markdown-style-refactor`.
+- If additional tokens are needed (e.g., `--surface-prose`), document them in the PR.