test: Add comprehensive SQL Lab tab state validation tests Add test suite to validate SQL Lab tab state management and backend persistence behavior, particularly around the interaction between frontend-generated string IDs and backend integer ID expectations. Related to issue #34997: These tests reproduce metadata update failures when users modify queries in newly created tabs. Test files: - sqlLab.tabStateValidation.test.js: 8 tests for tab state edge cases - sqlLab.immediateBackendPersistence.test.js: 6 tests for persistence 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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