Fix healthchecks: install curl in backend and frontend images

backend/config/database.js

@@ -0,0 +1,22 @@
+const { Sequelize } = require('sequelize');
+
+const sequelize = new Sequelize({
+  dialect: 'sqlite',
+  storage: process.env.DB_PATH || './database.sqlite',
+  logging: false,
+});
+
+const connectDB = async () => {
+  try {
+    await sequelize.authenticate();
+    console.log('Database connected.');
+    await sequelize.sync();
+    console.log('Database synced.');
+  } catch (err) {
+    console.error('Database connection error:', err);
+    // Retry after 5s
+    setTimeout(connectDB, 5000);
+  }
+};
+
+module.exports = { sequelize, connectDB };

backend/config/passport.js

@@ -0,0 +1,23 @@
+const passport = require('passport');
+const JwtStrategy = require('passport-jwt').Strategy;
+const ExtractJwt = require('passport-jwt').ExtractJwt;
+const User = require('../models/User');
+
+const opts = {
+  jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
+  secretOrKey: process.env.JWT_SECRET || 'dev_secret_change_in_production',
+};
+
+passport.use(new JwtStrategy(opts, async (jwt_payload, done) => {
+  try {
+    const user = await User.findByPk(jwt_payload.id);
+    if (user) {
+      return done(null, user);
+    }
+    return done(null, false);
+  } catch (err) {
+    return done(err, false);
+  }
+}));
+
+module.exports = passport;