Add project files:

- Add database initialization scripts
- Add configuration files
- Add documentation
- Add public assets
- Add source code structure
- Update README

src/config/index.ts

@@ -0,0 +1,77 @@
+import dotenv from 'dotenv';
+import path from 'path';
+
+// Load .env file
+dotenv.config({ path: path.resolve(__dirname, '../../.env') });
+
+export interface Config {
+  supabase: {
+    url: string;
+    anonKey: string;
+  };
+  server: {
+    port: number;
+    nodeEnv: string;
+  };
+  search: {
+    maxResultsPerQuery: number;
+    cacheDurationHours: number;
+    searxngUrl?: string;
+  };
+  rateLimit: {
+    windowMs: number;
+    maxRequests: number;
+  };
+  security: {
+    corsOrigin: string;
+    jwtSecret: string;
+  };
+  proxy?: {
+    http?: string;
+    https?: string;
+  };
+  logging: {
+    level: string;
+  };
+}
+
+const config: Config = {
+  supabase: {
+    url: process.env.SUPABASE_URL || '',
+    anonKey: process.env.SUPABASE_ANON_KEY || '',
+  },
+  server: {
+    port: parseInt(process.env.PORT || '3000', 10),
+    nodeEnv: process.env.NODE_ENV || 'development',
+  },
+  search: {
+    maxResultsPerQuery: parseInt(process.env.MAX_RESULTS_PER_QUERY || '20', 10),
+    cacheDurationHours: parseInt(process.env.CACHE_DURATION_HOURS || '24', 10),
+    searxngUrl: process.env.SEARXNG_URL
+  },
+  rateLimit: {
+    windowMs: parseInt(process.env.RATE_LIMIT_WINDOW_MS || '900000', 10),
+    maxRequests: parseInt(process.env.RATE_LIMIT_MAX_REQUESTS || '100', 10),
+  },
+  security: {
+    corsOrigin: process.env.CORS_ORIGIN || 'http://localhost:3000',
+    jwtSecret: process.env.JWT_SECRET || 'your_jwt_secret_key',
+  },
+  logging: {
+    level: process.env.LOG_LEVEL || 'info',
+  },
+};
+
+// Validate required configuration
+const validateConfig = () => {
+  if (!config.supabase.url) {
+    throw new Error('SUPABASE_URL is required');
+  }
+  if (!config.supabase.anonKey) {
+    throw new Error('SUPABASE_ANON_KEY is required');
+  }
+};
+
+validateConfig();
+
+export { config };