Initial commit - OBS Source Switcher Plugin UI

Complete Next.js application for managing OBS Source Switcher
- Stream management with multiple screen layouts
- Team management CRUD operations
- SQLite database integration
- OBS WebSocket API integration
- Updated to latest versions (Next.js 15.4.1, React 19.1.0, Tailwind CSS 4.0.0)
- Enhanced .gitignore for privacy and development

lib/database.ts

@@ -0,0 +1,60 @@
+import sqlite3 from 'sqlite3';
+import { open, Database } from 'sqlite';
+import path from 'path';
+import fs from 'fs';
+import { TABLE_NAMES } from './constants';
+
+let db: Database<sqlite3.Database, sqlite3.Statement> | null = null;
+
+const FILE_DIRECTORY = path.resolve(process.env.FILE_DIRECTORY || './files')
+
+const ensureDirectoryExists = (dirPath: string) => {
+  if (!fs.existsSync(dirPath)) {
+    fs.mkdirSync(dirPath, { recursive: true });
+    console.log(`Created directory: ${dirPath}`);
+  }
+};
+
+const initializeDatabase = async (database: Database<sqlite3.Database, sqlite3.Statement>) => {
+  // Create streams table
+  await database.exec(`
+    CREATE TABLE IF NOT EXISTS ${TABLE_NAMES.STREAMS} (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL,
+      obs_source_name TEXT NOT NULL,
+      url TEXT NOT NULL,
+      team_id INTEGER NOT NULL
+    )
+  `);
+
+  // Create teams table
+  await database.exec(`
+    CREATE TABLE IF NOT EXISTS ${TABLE_NAMES.TEAMS} (
+      team_id INTEGER PRIMARY KEY,
+      team_name TEXT NOT NULL
+    )
+  `);
+
+  console.log('Database tables initialized.');
+};
+
+export const getDatabase = async () => {
+  if (!db) {
+    // Ensure the files directory exists
+    ensureDirectoryExists(FILE_DIRECTORY);
+    
+    const dbPath = path.join(FILE_DIRECTORY, 'sources.db');
+    
+    db = await open({
+      filename: dbPath,
+      driver: sqlite3.Database,
+    });
+    console.log('Database connection established.');
+    
+    // Initialize database tables
+    await initializeDatabase(db);
+  }
+  return db;
+}
+
+// export default getDatabase