Fix regressions, security, and architectural inconsistencies

.env

@@ -1 +1,7 @@
+AUTH_DISABLED_FOR_DEV=false
 DATABASE_URL="postgresql://user:password@host:port/db"
+SERVER_ACTIONS_ALLOWED_ORIGINS=*
+STANDARD_TIER_BILLING_CYCLE="yearly"
+STANDARD_TIER_CREDITS=8000
+STANDARD_TIER_MONTHLY_PRICE=41
+STANDARD_TIER_PRICE_ID="price_standard_41_yearly"

.env.example

@@ -0,0 +1,6 @@
+NEXT_PUBLIC_SUPABASE_ANON_KEY=your-anon-key-here
+NEXT_PUBLIC_SUPABASE_URL=https://your-project.supabase.co
+STANDARD_TIER_BILLING_CYCLE="yearly"
+STANDARD_TIER_CREDITS=8000
+STANDARD_TIER_MONTHLY_PRICE=41
+STANDARD_TIER_PRICE_ID="price_placeholder"

.gitignore

@@ -1,59 +1,44 @@
-# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
-
-# dependencies
-/node_modules
-/.pnp
-.pnp.js
-.yarn/install-state.gz
-
-# testing
-/coverage
-
-# next.js
-/.next/
-/out/
-
-# production
-/build
+# Dependency directories
+node_modules/
+.bun/
+
+# Build outputs
+.next/
+dist/
+build/
+out/
+
+# Environment variables
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+.env.*.local
 
-# misc
+# IDE/Editor
+.vscode/
+.idea/
+*.swp
+*.swo
 .DS_Store
-*.pem
 
-# debug
+# Logs
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
 
-# local env files
-.env*.local
+# Lock files
+bun.lockb
 
-# log files
-dev_server.log
-server.log
+# Testing
+playwright-report/
+test-results/
+coverage/
 
-# vercel
-.vercel
+# Supabase local CLI state
+supabase/.temp/
 
-# typescript
+# Misc
+.vercel/
 *.tsbuildinfo
-next-env.d.ts
-
-# Playwright
-/playwright-report/
-/test-results/
-/dev.log
-# AlphaEarth Embeddings - Sensitive Files
-# Add these lines to your main .gitignore
-
-# GCP Service Account Credentials (NEVER commit)
-gcp_credentials.json
-**/gcp_credentials.json
-
-# AlphaEarth Index File (large, should be downloaded separately)
-aef_index.csv
-
-# Environment variables with GCP credentials
-.env.local
-.env.production.local
-*.log

.vscode/settings.json

@@ -1,4 +1,4 @@
 {
     "editor.formatOnSave": true,
     "editor.defaultFormatter": "esbenp.prettier-vscode"
-}
+}

FIXES_SUMMARY.md

@@ -0,0 +1,74 @@
+# Auth Backend Schema Fixes - PR #327
+
+## Summary of Changes
+
+This commit addresses critical security vulnerabilities and auth backend schema issues identified in the CodeRabbit review.
+
+## Critical Security Fixes
+
+### 1. ✅ Deleted RLS Disable Migration
+**File:** `supabase/migrations/0002_disable_rls_for_testing.sql` (DELETED)
+- **Issue:** This migration disabled Row Level Security on all tables, creating a critical security vulnerability
+- **Risk:** Anyone could read, modify, or delete ANY user's chats, messages, and participants
+- **Fix:** Completely removed this migration file to ensure RLS remains enabled in production
+
+### 2. ✅ Added pgcrypto Extension
+**File:** `supabase/migrations/0000_init.sql`
+- **Issue:** Used `gen_random_uuid()` without enabling the pgcrypto extension
+- **Risk:** Migration would fail on typical Supabase setups
+- **Fix:** Added `CREATE EXTENSION IF NOT EXISTS "pgcrypto";` at the start of the migration
+
+### 3. ✅ Fixed User Lookup in Collaboration
+**File:** `lib/actions/collaboration.ts`
+- **Issue:** Queried non-existent `public.users` table instead of `auth.users`
+- **Risk:** User invitation flow always failed
+- **Fix:** Updated `inviteUserToChat()` to use `auth.admin.listUsers()` via the service client to properly look up users by email
+
+### 4. ✅ Added Auth Check to RAG Function
+**File:** `lib/actions/rag.ts`
+- **Issue:** `retrieveContext()` had no authentication check
+- **Risk:** Unauthorized users could access message embeddings
+- **Fix:** Added authentication validation at the start of the function using `getCurrentUserIdOnServer()`
+
+### 5. ✅ Added Environment Validation
+**File:** `lib/supabase/client.ts`
+- **Issue:** Service client creation didn't validate required environment variables
+- **Risk:** Service client could fail silently, bypassing RLS checks
+- **Fix:** Added proper validation with descriptive error messages for missing `NEXT_PUBLIC_SUPABASE_URL` or `SUPABASE_SERVICE_ROLE_KEY`
+
+### 6. ✅ Improved INSERT Policy Security
+**File:** `supabase/migrations/0002_add_insert_policy_for_chats.sql`
+- **Issue:** Policy allowed any authenticated user to insert chats with any user_id
+- **Risk:** Users could create chats impersonating other users
+- **Fix:** Updated policy to enforce `auth.uid() = user_id`, ensuring users can only create chats where they are the owner
+
+## Files Modified
+
+1. `lib/actions/collaboration.ts` - Fixed user lookup to use auth.admin API
+2. `lib/actions/rag.ts` - Added authentication check
+3. `lib/supabase/client.ts` - Added environment variable validation
+4. `supabase/migrations/0000_init.sql` - Added pgcrypto extension
+5. `supabase/migrations/0002_add_insert_policy_for_chats.sql` - Improved security policy
+6. `supabase/migrations/0002_disable_rls_for_testing.sql` - DELETED (critical security issue)
+
+## Security Improvements
+
+- ✅ RLS remains enabled on all tables
+- ✅ All server actions now validate authentication
+- ✅ User lookup uses proper Supabase auth APIs
+- ✅ Environment variables are validated before use
+- ✅ INSERT policies enforce proper ownership
+- ✅ Database migrations will run successfully on standard Supabase setups
+
+## Testing Recommendations
+
+1. Verify RLS policies are active: Check Supabase dashboard
+2. Test user invitation flow: Ensure users can be invited by email
+3. Test RAG context retrieval: Verify auth check prevents unauthorized access
+4. Test chat creation: Ensure users can only create chats as themselves
+5. Run migrations on a test Supabase project to verify they execute without errors
+
+## Related Issues
+
+Addresses CodeRabbit review comments:
+- [CodeRabbit Review Comment](https://github.com/QueueLab/QCX/pull/327#issuecomment-3714336689)

README.md

@@ -4,7 +4,7 @@
 
 
 
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+[**Pricing**]  |  [**Land**](https://wwww.queue.cx)  |  [**X**](https://x.com/tryqcx)
 
 <a href="https://www.producthunt.com/products/qcx?embed=true&utm_source=badge-featured&utm_medium=badge&utm_source=badge-qcx" target="_blank"><img src="https://api.producthunt.com/widgets/embed-image/v1/featured.svg?post_id=1035588&theme=light&t=1762583679476" alt="QCX - Artificial&#0032;General&#0032;Intelligence&#0046; | Product Hunt" style="width: 250px; height: 54px;" width="250" height="54" /></a>
 </div>