Deleted: - runtime/index.ts (146 lines) — never imported by anything - httpFunctionCall + _csrClient cache — redundant third HTTP path - 3 duplicate getCSRFToken() implementations → shared utils.ts Fixed: - invalidateFunctions() was ignoring function names and invalidating ALL mounted contexts. Now correctly passes names through. 33 React tests pass. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>