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/cli.js

@@ -7,6 +7,7 @@ import { uninstallCommand } from './commands/uninstall.js';
 import { upgradeCommand } from './commands/upgrade.js';
 import { listCommand } from './commands/list.js';
 import { toolCommand } from './commands/tool.js';
+import { sessionCommand } from './commands/session.js';
 import { readFileSync, existsSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
@@ -115,5 +116,22 @@ export function run(argv) {
     .option('--new <text>', 'New text (for edit_file)')
     .action((subcommand, args, options) => toolCommand(subcommand, args, options));
 
+  // Session command
+  program
+    .command('session [subcommand] [args...]')
+    .description('Workflow session lifecycle management')
+    .option('--location <loc>', 'Location filter: active|archived|both')
+    .option('--type <type>', 'Content type or session type')
+    .option('--content <json>', 'Content for write/update')
+    .option('--task-id <id>', 'Task ID for task content')
+    .option('--filename <name>', 'Filename for process/chat/etc')
+    .option('--dimension <dim>', 'Dimension for review-dim')
+    .option('--iteration <iter>', 'Iteration for review-iter')
+    .option('--subdir <dir>', 'Subdirectory for mkdir')
+    .option('--raw', 'Output raw content only')
+    .option('--no-metadata', 'Exclude metadata from list')
+    .option('--no-update-status', 'Skip status update on archive')
+    .action((subcommand, args, options) => sessionCommand(subcommand, args, options));
+
   program.parse(argv);
 }