Engraphis 1.7.11

What's Changed

• fix(mcp): recover from DatabaseError, stale files, and transaction lock leaks (fixes #286) by @Coding-Dev-Tools in #287
• chore(release): prepare 1.7.11 release with MCP long-lived database recovery by @Coding-Dev-Tools in #288

Full Changelog: v1.7.10...v1.7.11