Add SQLite database for dynamic guild management

Features:
- SQLite database with better-sqlite3 for guild configurations
- Auto-registration when bot joins new guilds with welcome messages
- Soft delete system preserves settings when bot is removed
- Dynamic configuration via /config slash command with subcommands
- Automatic migration from config.json to database on first run
- Support for scheduled events with timezone preservation

Technical Implementation:
- Node.js 20 for better SQLite compatibility in Docker
- Full Debian base image with npm for reliable native module compilation
- Database persistence via Docker volume (./data)
- Hybrid configuration system (database primary, file fallback)
- JSON storage for complex schedule objects with timezone support

Database Schema:
- guilds table with soft delete (is_active flag)
- scheduled_events table with JSON schedule storage
- bot_config table for global settings
- Auto-initialization and seeding from existing config

Admin Features:
- /config show - View current server settings
- /config subcommands - Update prefix, volume, features, etc.
- Administrator permissions required for configuration changes
- Graceful handling of missing or malformed data

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

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

package.json

@@ -4,27 +4,29 @@
   "description": "",
   "main": "src/index.js",
   "dependencies": {
-    "axios": "^1.11.0",
-    "discord.js": "^14.21.0",
-    "@discordjs/voice": "^0.18.0",
     "@discordjs/opus": "^0.9.0",
-    "opusscript": "^0.1.1",
+    "@discordjs/voice": "^0.18.0",
+    "axios": "^1.11.0",
+    "better-sqlite3": "^11.10.0",
+    "discord.js": "^14.21.0",
     "ffmpeg-static": "^5.2.0",
     "node-schedule": "^2.1.1",
+    "opusscript": "^0.1.1",
     "sodium-native": "^4.3.3"
   },
   "devDependencies": {
-    "@types/node": "^22.0.0",
-    "nodemon": "^3.1.9"
+    "@types/node": "^22.17.2",
+    "nodemon": "^3.1.10"
   },
   "scripts": {
-    "start": "node src/index.js",
     "dev": "nodemon src/index.js",
-    "up": "docker compose up -d",
-    "down": "docker compose down",
+    "start": "docker compose up -d",
+    "start:logs": "pnpm start && pnpm logs",
+    "stop": "docker compose down",
     "build": "docker compose build",
     "restart": "docker compose restart",
     "logs": "docker compose logs -f",
+    "boom": "pnpm stop && pnpm build && pnpm start",
     "image:build": "docker build -t ghbot:${VERSION:-latest} .",
     "image:run": "docker run -d --name ghbot --restart always ghbot:${VERSION:-latest}"
   },