Add database migration scripts and configuration files

- Add verify-migration.js script for testing database migrations
- Add database config module for centralized configuration
- Add chutes.txt prompt for system responses
- Update database implementation and testing documentation
- Add database migration and setup scripts
- Update session system and LLM tool configuration
- Update deployment checklist and environment example
- Update Dockerfile and docker-compose configuration

chat/package-lock.json

@@ -15,7 +15,6 @@
         "better-sqlite3": "^11.8.1",
         "jsonwebtoken": "^9.0.2",
         "multer": "^2.0.2",
-        "nodemailer": "^7.0.7",
         "pdfkit": "^0.17.2",
         "sharp": "^0.33.5"
       }
@@ -1263,15 +1262,6 @@
         "node-gyp-build-test": "build-test.js"
       }
     },
-    "node_modules/nodemailer": {
-      "version": "7.0.11",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-7.0.11.tgz",
-      "integrity": "sha512-gnXhNRE0FNhD7wPSCGhdNh46Hs6nm+uTyg+Kq0cZukNQiYdnCsoQjodNP9BQVG9XrcK/v6/MgpAPBUFyzh9pvw==",
-      "license": "MIT-0",
-      "engines": {
-        "node": ">=6.0.0"
-      }
-    },
     "node_modules/normalize-path": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",