fix: tolerate missing payload_migrations table and auto-detect DB credentials in pipeline

.gitea/workflows/deploy.yml

@@ -371,17 +371,25 @@ jobs:
             sleep 2
           done
           
-          echo "🔧 Sanitizing payload_migrations table..."
-          ssh root@alpha.mintel.me "docker exec $DB_CONTAINER psql -U payload -d payload -c \"
-            DELETE FROM payload_migrations WHERE batch = -1;
-            INSERT INTO payload_migrations (name, batch)
-            SELECT name, batch FROM (VALUES
-              ('20260223_195005_products_collection', 1),
-              ('20260223_195151_remove_sku_unique', 2),
-              ('20260225_003500_add_pages_collection', 3)
-            ) AS v(name, batch)
-            WHERE NOT EXISTS (SELECT 1 FROM payload_migrations pm WHERE pm.name = v.name);
-          \""
+          echo "🔧 Sanitizing payload_migrations table (if exists)..."
+          REMOTE_DB_USER=$(ssh root@alpha.mintel.me "grep -h '^PAYLOAD_DB_USER=' $SITE_DIR/.env* 2>/dev/null | tail -1 | cut -d= -f2" || echo "payload")
+          REMOTE_DB_NAME=$(ssh root@alpha.mintel.me "grep -h '^PAYLOAD_DB_NAME=' $SITE_DIR/.env* 2>/dev/null | tail -1 | cut -d= -f2" || echo "payload")
+          REMOTE_DB_USER="${REMOTE_DB_USER:-payload}"
+          REMOTE_DB_NAME="${REMOTE_DB_NAME:-payload}"
+          ssh root@alpha.mintel.me "docker exec $DB_CONTAINER psql -U $REMOTE_DB_USER -d $REMOTE_DB_NAME -c \"
+            DO \\\$\\\$ BEGIN
+              DELETE FROM payload_migrations WHERE batch = -1;
+              INSERT INTO payload_migrations (name, batch)
+              SELECT name, batch FROM (VALUES
+                ('20260223_195005_products_collection', 1),
+                ('20260223_195151_remove_sku_unique', 2),
+                ('20260225_003500_add_pages_collection', 3)
+              ) AS v(name, batch)
+              WHERE NOT EXISTS (SELECT 1 FROM payload_migrations pm WHERE pm.name = v.name);
+            EXCEPTION WHEN undefined_table THEN
+              RAISE NOTICE 'payload_migrations table does not exist yet — skipping sanitization';
+            END \\\$\\\$;
+          \"" || echo "⚠️  Migration sanitization skipped (table may not exist yet)"
           
           # Restart app to pick up clean migration state
           APP_CONTAINER="${{ needs.prepare.outputs.project_name }}-klz-app-1"