feat(ccw): add session manager tool with auto workspace detection

- Add session_manager tool for workflow session lifecycle management
- Add ccw session CLI command with subcommands:
  - list, init, status, task, stats, delete, read, write, update, archive, mkdir
- Implement auto workspace detection (traverse up to find .workflow)
- Implement auto session location detection (active, archived, lite-plan, lite-fix)
- Add dashboard notifications for tool executions via WebSocket
- Add granular event types (SESSION_CREATED, TASK_UPDATED, etc.)
- Add status_history auto-tracking for task status changes
- Update workflow session commands to document ccw session usage

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

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

ccw/src/core/server.js

@@ -354,7 +354,7 @@ export async function startServer(options = {}) {
       // API: Hook endpoint for Claude Code notifications
       if (pathname === '/api/hook' && req.method === 'POST') {
         handlePostRequest(req, res, async (body) => {
-          const { type, filePath, sessionId } = body;
+          const { type, filePath, sessionId, ...extraData } = body;
 
           // Determine session ID from file path if not provided
           let resolvedSessionId = sessionId;
@@ -368,7 +368,8 @@ export async function startServer(options = {}) {
             payload: {
               sessionId: resolvedSessionId,
               filePath: filePath,
-              timestamp: new Date().toISOString()
+              timestamp: new Date().toISOString(),
+              ...extraData  // Pass through toolName, status, result, params, error, etc.
             }
           };