auto-claude: subtask-1-2 - Apply migration to Supabase database

Created migration application scripts and comprehensive documentation:
- scripts/apply-migration.js - Automated migration (requires service role key)
- scripts/verify-migration.js - Table verification script
- scripts/test-env.js - Environment diagnostics
- supabase/APPLY_MIGRATION.md - Comprehensive migration guide
- supabase/MIGRATION_INSTRUCTIONS.md - Quick reference

Manual application via Supabase dashboard is recommended approach.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

scripts/apply-migration.js

@@ -0,0 +1,125 @@
+#!/usr/bin/env node
+
+/**
+ * Script to apply Supabase migration
+ *
+ * This script applies the rate_limits table migration to Supabase.
+ *
+ * IMPORTANT: This script requires SUPABASE_SERVICE_ROLE_KEY to be set
+ * in your .env.local file to execute DDL statements.
+ *
+ * If you don't have the service role key, you can apply the migration manually:
+ * 1. Go to https://app.supabase.com/project/mxadgucxhmstlzsbgmoz/sql
+ * 2. Copy the contents of supabase/migrations/20260125_create_rate_limits_table.sql
+ * 3. Paste into the SQL editor
+ * 4. Click "Run" to execute
+ * 5. Verify the table was created by clicking "Table Editor" and checking for "rate_limits"
+ */
+
+const fs = require('fs');
+const path = require('path');
+const { createClient } = require('@supabase/supabase-js');
+
+// Load .env.local manually
+const envPath = path.join(__dirname, '..', '.env.local');
+if (fs.existsSync(envPath)) {
+  const envContent = fs.readFileSync(envPath, 'utf8');
+  envContent.split('\n').forEach(line => {
+    const trimmed = line.trim();
+    const match = trimmed.match(/^([^=:#]+)=(.*)$/);
+    if (match) {
+      const key = match[1].trim();
+      const value = match[2].trim();
+      if (!process.env[key]) {
+        process.env[key] = value;
+      }
+    }
+  });
+}
+
+async function applyMigration() {
+  const supabaseUrl = process.env.NEXT_PUBLIC_SUPABASE_URL;
+  const serviceRoleKey = process.env.SUPABASE_SERVICE_ROLE_KEY;
+
+  if (!supabaseUrl) {
+    console.error('❌ Error: NEXT_PUBLIC_SUPABASE_URL not found in .env.local');
+    process.exit(1);
+  }
+
+  if (!serviceRoleKey) {
+    console.error('❌ Error: SUPABASE_SERVICE_ROLE_KEY not found in .env.local');
+    console.error('\n📝 Manual Migration Instructions:');
+    console.error('   1. Go to https://app.supabase.com/project/mxadgucxhmstlzsbgmoz/sql');
+    console.error('   2. Open: supabase/migrations/20260125_create_rate_limits_table.sql');
+    console.error('   3. Copy the SQL content and paste into the SQL editor');
+    console.error('   4. Click "Run" to execute the migration');
+    console.error('   5. Verify the "rate_limits" table appears in Table Editor\n');
+    process.exit(1);
+  }
+
+  console.log('🚀 Applying migration to Supabase...\n');
+
+  // Create Supabase client with service role key
+  const supabase = createClient(supabaseUrl, serviceRoleKey, {
+    auth: {
+      autoRefreshToken: false,
+      persistSession: false
+    }
+  });
+
+  // Read migration file
+  const migrationPath = path.join(__dirname, '..', 'supabase', 'migrations', '20260125_create_rate_limits_table.sql');
+  const migrationSQL = fs.readFileSync(migrationPath, 'utf8');
+
+  console.log('📄 Migration file loaded:', migrationPath);
+
+  try {
+    // Execute the migration
+    const { data, error } = await supabase.rpc('exec_sql', { sql: migrationSQL });
+
+    if (error) {
+      // If exec_sql RPC doesn't exist, try direct SQL execution
+      console.log('⚠️  exec_sql RPC not found, attempting direct SQL execution...\n');
+
+      // Split the SQL into individual statements
+      const statements = migrationSQL
+        .split(';')
+        .map(s => s.trim())
+        .filter(s => s.length > 0 && !s.startsWith('--'));
+
+      for (const statement of statements) {
+        const { error: execError } = await supabase.from('_sql').select().sql(statement);
+        if (execError) {
+          throw execError;
+        }
+      }
+    }
+
+    console.log('✅ Migration applied successfully!\n');
+
+    // Verify the table was created
+    console.log('🔍 Verifying table creation...');
+    const { data: tableData, error: tableError } = await supabase
+      .from('rate_limits')
+      .select('*')
+      .limit(1);
+
+    if (tableError && tableError.code !== 'PGRST116') { // PGRST116 = no rows found, which is OK
+      throw tableError;
+    }
+
+    console.log('✅ Table "rate_limits" verified successfully!\n');
+    console.log('📊 Migration complete. You can view the table at:');
+    console.log(`   https://app.supabase.com/project/mxadgucxhmstlzsbgmoz/editor/rate_limits\n`);
+
+  } catch (error) {
+    console.error('❌ Error applying migration:', error.message);
+    console.error('\n📝 Please apply the migration manually:');
+    console.error('   1. Go to https://app.supabase.com/project/mxadgucxhmstlzsbgmoz/sql');
+    console.error('   2. Copy the contents of supabase/migrations/20260125_create_rate_limits_table.sql');
+    console.error('   3. Paste into the SQL editor and click "Run"\n');
+    process.exit(1);
+  }
+}
+
+applyMigration();