Feat/phase 2 supabase migration

backend/.env.example

@@ -2,7 +2,7 @@ NODE_ENV=development
 PORT=3000
 FRONTEND_URL=http://localhost:5173
 JWT_SECRET=change_me
-DATABASE_URL=postgresql://postgres:your_password@localhost:5432/reimbursement
+DATABASE_URL=DATABASE_URL=postgresql://postgres.[project-ref]:[password]@aws-1-ap-south-1.pooler.supabase.com:5432/postgres
 COMPANY_DEFAULT_COUNTRY=IN
 EXCHANGE_API_URL=https://api.exchangerate.host
 OCR_PROVIDER=mock

backend/src/config/db.js

@@ -2,6 +2,9 @@
 import { env } from "./env.js";
 
 const { Pool } = pg;
-export const pool = new Pool({ connectionString: env.DATABASE_URL });
+export const pool = new Pool({
+  connectionString: env.DATABASE_URL,
+  ssl: { rejectUnauthorized: false },
+});
 
 export const query = (text, params = []) => pool.query(text, params);

backend/src/db/migrations/003_init_approvals.sql

@@ -1,25 +1,25 @@
 CREATE TABLE IF NOT EXISTS approval_rules (
-  id SERIAL PRIMARY KEY,
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
   rule_json JSONB NOT NULL,
   manager_first_enabled BOOLEAN DEFAULT TRUE,
   created_at TIMESTAMP DEFAULT NOW()
 );
 
 CREATE TABLE IF NOT EXISTS expense_approval_steps (
-  id SERIAL PRIMARY KEY,
-  expense_id INT REFERENCES expenses(id),
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  expense_id UUID REFERENCES expenses(id),
   step_no INT NOT NULL,
   approver_role VARCHAR(20),
-  approver_id INT,
+  approver_id UUID,
   status VARCHAR(20) DEFAULT 'PENDING',
   created_at TIMESTAMP DEFAULT NOW()
 );
 
 CREATE TABLE IF NOT EXISTS notifications (
-  id SERIAL PRIMARY KEY,
-  user_id INT REFERENCES users(id),
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id UUID REFERENCES users(id),
   title TEXT NOT NULL,
   body TEXT,
   is_read BOOLEAN DEFAULT FALSE,
   created_at TIMESTAMP DEFAULT NOW()
-);
+);