fix: update remaining UUID validation tests for v5.1.0 stricter validation
Fixed 5 more UUID validation tests (96.6% → 97.0% pass rate):
- get.test.ts: Updated invalid UUID tests to expect errors
- get.test.ts: Fixed very long ID test expectations
- get.test.ts: Fixed special characters and unicode ID tests
- Replaced custom IDs with valid UUID format
Test Results:
- Before: 1015/1051 passing (96.6%), 15 failures
- After: 1020/1051 passing (97.0%), 10 failures
Remaining 10 failures are non-critical edge cases (augmentations, custom IDs).
All critical systems passing: VFS (✓), COW (✓), Core (✓), Batch Ops (✓).