feat: 霓虹都市→白日梦境 + 渐变网格→云石纹理 — 两个白色浅色主题登录页重写

登录页风格优化与扩展/sql-platform/.gitignore

@@ -0,0 +1,32 @@
+# Backend Python
+__pycache__/
+*.pyc
+venv/
+*.db
+.env
+*.sqlite3
+*.db-journal
+.pytest_cache/
+apscheduler.db
+
+# Backend Python (preserved but not tracked)
+backend-python/
+
+# Backend Go
+backend/sql-platform
+backend/go.sum
+
+# Frontend
+node_modules/
+dist/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Runtime
+.pids/
+logs/
+
+# Docs (large/generated)
+OPTIMIZATION_GUIDE*.md