feat: Task decomposition for Tailwind/Radix/shadcn foundation setup

Decomposed "Foundation Setup - Install Dependencies & Configure Tailwind"
phase into 6 executable tasks:

1. Install Tailwind CSS, PostCSS & Autoprefixer
2. Map MUI theme to Tailwind design tokens
3. Setup CSS variables for dynamic theming
4. Install Radix UI primitives
5. Initialize shadcn/ui and setup component directory
6. Move MUI to devDependencies and verify setup

Tasks follow logical dependency chain with final human verification
checkpoint before proceeding with component migration.

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

docs/git-process-logging.md

@@ -0,0 +1,121 @@
+# Git, Process, and Logging Modules
+
+Three infrastructure modules supporting agent execution.
+
+## Git Module (`src/git/`)
+
+Manages git worktrees for isolated agent workspaces.
+
+### Architecture
+- **Port**: `WorktreeManager` interface
+- **Adapter**: `SimpleGitWorktreeManager` using simple-git library
+
+### WorktreeManager Methods
+
+| Method | Purpose |
+|--------|---------|
+| `create(id, branch, baseBranch?)` | Create worktree with new branch (default base: 'main') |
+| `remove(id)` | Clean up worktree directory |
+| `list()` | All worktrees including main |
+| `get(id)` | Specific worktree by ID |
+| `diff(id)` | Changed files vs HEAD |
+| `merge(id, targetBranch)` | Merge worktree branch into target |
+
+### Worktree Storage
+Worktrees stored in `.cw-worktrees/` subdirectory of the repo. Each agent gets a worktree at `.cw-worktrees/agent/<alias>/`.
+
+### Merge Flow
+1. Check out target branch
+2. `git merge <source> --no-edit`
+3. On success: emit `worktree:merged`
+4. On conflict: `git merge --abort`, emit `worktree:conflict` with conflicting file list
+5. Restore original branch
+
+### Project Clones
+- `cloneProject(url, destPath)` — Simple git clone wrapper
+- `ensureProjectClone(project, workspaceRoot)` — Idempotent: checks if clone exists, clones if not
+- `getProjectCloneDir(name, id)` — Canonical path: `repos/<sanitized-name>-<id>/`
+
+### Events Emitted
+`worktree:created`, `worktree:removed`, `worktree:merged`, `worktree:conflict`
+
+---
+
+## Process Module (`src/process/`)
+
+Spawns, tracks, and controls child processes.
+
+### Classes
+
+**ProcessRegistry** — In-memory metadata store:
+- `register(info)`, `unregister(id)`, `get(id)`, `getAll()`, `getByPid(pid)`, `updateStatus(id, status)`
+
+**ProcessManager** — Lifecycle management:
+
+| Method | Purpose |
+|--------|---------|
+| `spawn(options)` | Spawn detached process (survives parent exit) |
+| `stop(id)` | SIGTERM → wait 5s → SIGKILL |
+| `stopAll()` | Stop all running processes in parallel |
+| `restart(id)` | Stop + re-spawn with same options |
+| `isRunning(id)` | Check with `process.kill(pid, 0)` |
+
+### Spawn Details
+- Uses `execa` with `detached: true`, `stdio: 'ignore'`
+- Calls `subprocess.unref()` so parent can exit
+- Exit handler updates registry and emits events
+
+### Events Emitted
+`process:spawned`, `process:stopped`, `process:crashed`
+
+---
+
+## Logger Module (`src/logger/`)
+
+Structured logging via **pino**.
+
+### Usage
+```typescript
+import { createModuleLogger } from './logger/index.js';
+const log = createModuleLogger('my-module');
+log.info({ key: 'value' }, 'message');
+```
+
+### Configuration
+| Env Var | Effect |
+|---------|--------|
+| `CW_LOG_LEVEL` | Override log level |
+| `CW_LOG_PRETTY` | Set to `'1'` for human-readable output |
+| `NODE_ENV=development` | Default to 'debug' level |
+
+### Output
+- Default: JSON to stderr (fd 2)
+- Pretty mode: pino-pretty to stdout with colors and timestamps
+
+---
+
+## Logging Module (`src/logging/`)
+
+File-based per-process output capture (separate from pino).
+
+### Classes
+
+**LogManager** — Directory management:
+- Base dir: `~/.cw/logs/`
+- Structure: `{processId}/stdout.log`, `{processId}/stderr.log`
+- `cleanOldLogs(retainDays)` — removes old directories by mtime
+
+**ProcessLogWriter** — File I/O with timestamps:
+- `open()` — create directories and append-mode WriteStreams
+- `writeStdout(data)` / `writeStderr(data)` — prefix each line with `[YYYY-MM-DD HH:mm:ss.SSS]`
+- Handles backpressure (waits for drain event)
+- Emits `log:entry` event via EventBus
+
+### Factory
+```typescript
+import { createLogger } from './logging/index.js';
+const writer = createLogger(processId, eventBus);
+await writer.open();
+await writer.writeStdout('output data');
+await writer.close();
+```