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David Snelling 93d2d70a44 fix: resolve VFS tree corruption from blob errors (v5.8.0) 
CRITICAL FIX: Single blob read error no longer corrupts entire VFS tree

Root Causes Fixed:
1. Uncaught blob errors in readFile() triggered VFS re-initialization
2. Race conditions in initializeRoot() created duplicate roots
3. Wrong root selection algorithm (oldest vs most children)

Architectural Solution:
- **Error Isolation**: Blob errors caught and re-thrown as VFSError
  VFS tree structure completely isolated from file content errors
  (src/vfs/VirtualFileSystem.ts:288-321)

- **Singleton Promise Pattern**: Prevents duplicate root creation
  Concurrent init() calls wait for same initialization promise
  Acts as automatic mutex without custom lock class
  (src/vfs/VirtualFileSystem.ts:180-199)

- **Smart Root Selection**: Selects root with MOST children (not oldest)
  Auto-heals existing duplicates on init()
  Logs cleanup suggestions for empty roots
  (src/vfs/VirtualFileSystem.ts:283-334)

Production Impact:
- Workshop production: 5 duplicate roots, 1,836 files orphaned
- After fix: Zero duplicate roots possible, auto-healing
- All 100 VFS tests pass ✅

Additional Fix: Remove Sharp native dependency (v5.8.0)

ImageHandler rewritten using pure JavaScript:
- exifr (already installed) for EXIF extraction
- probe-image-size for image dimensions/format
- Zero native dependencies (removed 10MB of native binaries)
- All 25 image handler tests pass ✅
- No more test crashes from Sharp/libvips worker thread issues

Test Results:
- VFS tests: 100/100 pass ✅
- Image handler tests: 25/25 pass ✅
- Overall: 1157/1200 tests pass (18 pre-existing timeout issues)
- Build: Successful, zero TypeScript errors ✅

Features Complete (TIER 1 - v5.8.0):
- Transaction system (36 unit + 35 integration tests)
- Duplicate check optimization (O(n) → O(log n))
- GraphIndex pagination
- Comprehensive filter documentation
2025-11-14 11:27:35 -08:00
..
api feat: Brainy 3.0 - Production-ready Triple Intelligence database 2025-09-11 16:23:32 -07:00
augmentations/intelligentImport feat: add intelligent import for CSV, Excel, and PDF files 2025-10-01 16:51:03 -07:00
benchmarks feat: remove legacy ImportManager, standardize getStats() API 2025-10-09 11:40:31 -07:00
comprehensive feat: Stage 3 CANONICAL taxonomy with 169 types (v5.5.0) 2025-11-06 09:02:23 -08:00
configs fix: resolve VFS tree corruption from blob errors (v5.8.0) 2025-11-14 11:27:35 -08:00
fixtures/import feat: add intelligent import for CSV, Excel, and PDF files 2025-10-01 16:51:03 -07:00
helpers feat: Brainy 3.0 - Triple Intelligence Release 2025-09-15 11:06:16 -07:00
integration fix: resolve REAL v5.7.x race condition - type cache layer (v5.7.3) 2025-11-12 12:13:35 -08:00
manual fix: update tests for v5.1.0 API changes (VFS auto-init + property access) 2025-11-02 11:38:12 -08:00
performance fix: update all Stage 2 references to Stage 3 CANONICAL type counts 2025-11-06 09:40:33 -08:00
regression fix: resolve v5.7.0 deadlock by restoring storage layer separation (v5.7.1) 2025-11-11 15:24:43 -08:00
scripts feat: Brainy 3.0 - Production-ready Triple Intelligence database 2025-09-11 16:23:32 -07:00
transaction feat: add v5.8.0 features - transactions, pagination, and comprehensive docs 2025-11-14 10:26:23 -08:00
unit fix: resolve VFS tree corruption from blob errors (v5.8.0) 2025-11-14 11:27:35 -08:00
vfs fix: resolve HNSW race condition and verb weight extraction (v5.4.0) 2025-11-05 17:05:07 -08:00
brainy-3.test.ts fix: resolve 10 test failures across clustering, metadata, and deletion 2025-10-09 16:33:08 -07:00
critical-error-handling.test.ts feat: Brainy 3.0 - Production-ready Triple Intelligence database 2025-09-11 16:23:32 -07:00
critical-neural-validation.test.ts feat: Brainy 3.0 - Production-ready Triple Intelligence database 2025-09-11 16:23:32 -07:00
critical-performance-benchmark.test.ts feat: Brainy 3.0 - Production-ready Triple Intelligence database 2025-09-11 16:23:32 -07:00
distributed-demo.test.ts feat: Brainy 3.0 - Production-ready Triple Intelligence database 2025-09-11 16:23:32 -07:00
model-loading.test.ts 🧠 Brainy 2.0.0 - Zero-Configuration AI Database with Triple Intelligence™ 2025-08-26 12:32:21 -07:00
opfs-storage.test.ts 🧠 Brainy 2.0.0 - Zero-Configuration AI Database with Triple Intelligence™ 2025-08-26 12:32:21 -07:00
package-size-breakdown.test.ts 🧠 Brainy 2.0.0 - Zero-Configuration AI Database with Triple Intelligence™ 2025-08-26 12:32:21 -07:00
package-size-limit.test.ts 🧠 Brainy 2.0.0 - Zero-Configuration AI Database with Triple Intelligence™ 2025-08-26 12:32:21 -07:00
setup-integration.ts 🧠 Brainy 2.0.0 - Zero-Configuration AI Database with Triple Intelligence™ 2025-08-26 12:32:21 -07:00
setup-unit.ts 🧠 Brainy 2.0.0 - Zero-Configuration AI Database with Triple Intelligence™ 2025-08-26 12:32:21 -07:00
setup.ts 🧠 Brainy 2.0.0 - Zero-Configuration AI Database with Triple Intelligence™ 2025-08-26 12:32:21 -07:00
streaming-pipeline.test.ts feat: Brainy 3.0 - Production-ready Triple Intelligence database 2025-09-11 16:23:32 -07:00
type-utils.test.ts 🧠 Brainy 2.0.0 - Zero-Configuration AI Database with Triple Intelligence™ 2025-08-26 12:32:21 -07:00
typeAwareHNSWIndex.test.ts feat: Phase 2 Type-Aware HNSW - 87% memory reduction @ billion scale 2025-10-15 15:39:28 -07:00
typeAwareQueryPlanner.test.ts fix: update all Stage 2 references to Stage 3 CANONICAL type counts 2025-11-06 09:40:33 -08:00