feat: Implement Worker Service with session management and SDK integration

- Added WorkerService to handle long-running HTTP service with session management.
- Implemented endpoints for initializing, observing, finalizing, checking status, and deleting sessions.
- Integrated with Claude SDK for processing observations and generating responses.
- Added port allocator utility to dynamically find available ports for the service.
- Configured TypeScript settings for the project.

package.json

@@ -13,7 +13,7 @@
     "knowledge-graph",
     "transcript",
     "typescript",
-    "bun"
+    "nodejs"
   ],
   "author": "Alex Newman",
   "license": "SEE LICENSE IN LICENSE",
@@ -31,22 +31,37 @@
   },
   "type": "module",
   "engines": {
-    "bun": ">=1.0.0"
+    "node": ">=18.0.0"
   },
   "scripts": {
     "build": "node scripts/build-hooks.js",
     "build:hooks": "node scripts/build-hooks.js",
     "publish:npm": "node scripts/publish.js",
     "prepublishOnly": "npm run build",
-    "test": "bun test tests/",
-    "test:context": "echo '{\"session_id\":\"test-'$(date +%s)'\",\"cwd\":\"'$(pwd)'\",\"source\":\"startup\"}' | bun scripts/hooks/context-hook.js 2>/dev/null",
-    "test:context:verbose": "echo '{\"session_id\":\"test-'$(date +%s)'\",\"cwd\":\"'$(pwd)'\",\"source\":\"startup\"}' | bun scripts/hooks/context-hook.js"
+    "test": "node --test tests/",
+    "test:context": "echo '{\"session_id\":\"test-'$(date +%s)'\",\"cwd\":\"'$(pwd)'\",\"source\":\"startup\"}' | node claude-mem/scripts/context-hook.js 2>/dev/null",
+    "test:context:verbose": "echo '{\"session_id\":\"test-'$(date +%s)'\",\"cwd\":\"'$(pwd)'\",\"source\":\"startup\"}' | node claude-mem/scripts/context-hook.js",
+    "worker:start": "pm2 start ecosystem.config.cjs",
+    "worker:stop": "pm2 stop claude-mem-worker",
+    "worker:restart": "pm2 restart claude-mem-worker",
+    "worker:logs": "pm2 logs claude-mem-worker",
+    "worker:status": "pm2 status claude-mem-worker"
   },
   "dependencies": {
     "@anthropic-ai/claude-agent-sdk": "^0.1.0",
+    "better-sqlite3": "^11.0.0",
+    "express": "^4.18.2",
     "glob": "^11.0.3",
     "handlebars": "^4.7.8"
   },
+  "devDependencies": {
+    "@types/better-sqlite3": "^7.6.8",
+    "@types/express": "^4.17.21",
+    "@types/node": "^20.0.0",
+    "esbuild": "^0.20.0",
+    "pm2": "^5.3.0",
+    "typescript": "^5.3.0"
+  },
   "files": [
     "hooks",
     "scripts",