docs: update README and CLAUDE.md for v2 statusline

- Rewrite README for statusline architecture
- Update CLAUDE.md with new data flow and structure
- Remove obsolete v1 docs (TROUBLESHOOTING, CONTRIBUTING, etc.)
- Clean up .husky/pre-commit for new structure

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -1,87 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-
-jobs:
-  test:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest, macos-latest]
-        bun: [latest, 1.1.30]
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: oven-sh/setup-bun@v2
-        with:
-          bun-version: ${{ matrix.bun }}
-
-      - name: Install dependencies
-        working-directory: tui
-        run: bun install --frozen-lockfile
-
-      - name: Lint
-        working-directory: tui
-        run: bun run lint
-
-      - name: Type check
-        working-directory: tui
-        run: bun run typecheck
-
-      - name: Test
-        working-directory: tui
-        run: bun test
-
-      - name: Snapshot guard
-        run: git diff --exit-code
-
-      - name: Build
-        working-directory: tui
-        run: bun run build
-
-  validate-plugin:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Check plugin.json exists
-        run: test -f .claude-plugin/plugin.json
-
-      - name: Check hooks.json exists
-        run: test -f hooks/hooks.json
-
-      - name: Check scripts are executable
-        run: |
-          test -x scripts/session-start.sh
-          test -x scripts/capture-event.sh
-          test -x scripts/cleanup.sh
-
-      - name: Validate JSON files
-        run: |
-          jq . .claude-plugin/plugin.json > /dev/null
-          jq . hooks/hooks.json > /dev/null
-
-  audit:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: oven-sh/setup-bun@v2
-        with:
-          bun-version: latest
-
-      - name: Install dependencies
-        working-directory: tui
-        run: bun install --frozen-lockfile
-
-      - name: Dependency audit
-        working-directory: tui
-        run: bun run audit

.github/workflows/release.yml

@@ -1,33 +0,0 @@
-name: Release
-
-on:
-  push:
-    tags:
-      - 'v*.*.*'
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: oven-sh/setup-bun@v2
-        with:
-          bun-version: latest
-
-      - name: Install dependencies
-        working-directory: tui
-        run: bun install --frozen-lockfile
-
-      - name: Build TUI
-        working-directory: tui
-        run: bun run build
-
-      - name: Package artifact
-        run: tar -czf claude-hud-tui.tar.gz tui/dist tui/package.json
-
-      - name: Release artifact
-        uses: softprops/action-gh-release@v2
-        with:
-          files: claude-hud-tui.tar.gz