feat: implement UI-driven database configuration

src/db/index.ts

@@ -1,10 +1,26 @@
-import { drizzle } from "drizzle-orm/pg-proxy"; // Or node-postgres if using directly
 import { drizzle as nodeDrizzle } from "drizzle-orm/node-postgres";
 import { Pool } from "pg";
 import * as schema from "./schema";
+import fs from "fs";
+import path from "path";
+
+let connectionString = process.env.DATABASE_URL;
+
+// On tente de lire la config sauvegardée via l'UI
+try {
+    const CONFIG_PATH = path.join(process.cwd(), ".db-config.json");
+    if (fs.existsSync(CONFIG_PATH)) {
+        const config = JSON.parse(fs.readFileSync(CONFIG_PATH, "utf-8"));
+        if (config.url) {
+            connectionString = config.url;
+        }
+    }
+} catch (err) {
+    console.error("Error reading database config file:", err);
+}
 
 const pool = new Pool({
-    connectionString: process.env.DATABASE_URL,
+    connectionString,
 });
 
 export const db = nodeDrizzle(pool, { schema });