Memory Engine MCP v1.7.0

v1.7.0 — Test Suite, Auth/Hardening, Backup/Restore, Benchmark, SQLite Concurrency

Major engineering hardening release. 135 tests, token auth, full backup/restore, recall benchmarking, and SQLite concurrency improvements.

Testing (P1)

• 135 tests across 9 files, all passing in ~14s
• Covers: CRUD, bonds, graph, merge, decay, errors, contradictions, FTS, migrations, ranking, recall, auth, backup, concurrency

Auth & Hardening (P2)

• auth.py — API token (constant-time hmac.compare_digest), Bearer extraction
• Secure bind (127.0.0.1 default), input validation, rate limiting (120 req/min)
• Web UI auth on all /api/* endpoints

Backup / Restore / Export (P3)

• backup.py — SQLite snapshots, JSON export/import, verify, cleanup
• 4 new MCP tools: backup_database, restore_database, export_all, import_data

Benchmark (P4)

• benchmark.py — CLI recall quality suite (Precision@K, Recall, MRR, latency p50/p95)

SQLite Concurrency (P5)

• PRAGMAs: synchronous=NORMAL, temp_store=MEMORY, mmap_size=256MB
• Retry on SQLITE_BUSY with exponential backoff

Backward Compatible

No breaking changes. Auth disabled by default — existing deployments work unchanged.

Full Changelog: https://github.com/SimoneB79/memory-engine-mcp/blob/main/CHANGELOG.md