Removed files from promoting 6f90744

Removed files that don't exist in commit 6f907443fea144f861fa6a07196de854cb670270:
- auth.js

auth.js

@@ -1,93 +0,0 @@
-```javascript
-const { OAuth2Client } = require('google-auth-library');
-const express = require('express');
-const session = require('express-session');
-const dotenv = require('dotenv');
-const path = require('path');
-
-dotenv.config();
-
-const app = express();
-const client = new OAuth2Client(process.env.GOOGLE_CLIENT_ID);
-
-// Middleware
-app.use(express.json());
-app.use(express.static(path.join(__dirname, 'public')));
-app.use(session({
-  secret: process.env.SESSION_SECRET,
-  resave: false,
-  saveUninitialized: false,
-  cookie: { secure: process.env.NODE_ENV === 'production', maxAge: 24 * 60 * 60 * 1000 }
-}));
-
-// Google OAuth routes
-app.get('/auth/google', (req, res) => {
-  const url = client.generateAuthUrl({
-    access_type: 'online',
-    scope: ['profile', 'email'],
-    redirect_uri: process.env.GOOGLE_REDIRECT_URI
-  });
-  res.redirect(url);
-});
-
-app.get('/auth/google/callback', async (req, res) => {
-  const { code } = req.query;
-
-  try {
-    const { tokens } = await client.getToken({
-      code,
-      redirect_uri: process.env.GOOGLE_REDIRECT_URI
-    });
-
-    const ticket = await client.verifyIdToken({
-      idToken: tokens.id_token,
-      audience: process.env.GOOGLE_CLIENT_ID
-    });
-
-    const payload = ticket.getPayload();
-    req.session.user = {
-      id: payload.sub,
-      email: payload.email,
-      name: payload.name,
-      picture: payload.picture
-    };
-
-    res.redirect('/');
-  } catch (error) {
-    console.error('Auth error:', error);
-    res.redirect('/?auth_error=1');
-  }
-});
-
-app.get('/auth/logout', (req, res) => {
-  req.session.destroy();
-  res.redirect('/');
-});
-
-app.get('/auth/status', (req, res) => {
-  res.json({ isAuthenticated: !!req.session.user, user: req.session.user });
-});
-
-// Chat history routes
-app.get('/api/chats', async (req, res) => {
-  if (!req.session.user) return res.sendStatus(401);
-  
-  // In a real app, you'd fetch from a database
-  const chats = JSON.parse(localStorage.getItem(`chats_${req.session.user.id}`) || '[]');
-  res.json(chats);
-});
-
-app.post('/api/chats', async (req, res) => {
-  if (!req.session.user) return res.sendStatus(401);
-  
-  // In a real app, you'd save to a database
-  const chats = JSON.parse(localStorage.getItem(`chats_${req.session.user.id}`) || '[]');
-  chats.push(req.body);
-  localStorage.setItem(`chats_${req.session.user.id}`, JSON.stringify(chats));
-  
-  res.sendStatus(201);
-});
-
-const PORT = process.env.PORT || 3000;
-app.listen(PORT, () => console.log(`Server running on port ${PORT}`));
-```