rdmbair15m5-changelog-20260823-0104-devmon-and-logtty-remediations-delivered

• Scope: rdmbair15m5 (native engine, OSLog logging, crash-gate CI runner) & rdmsm4x:~/dev/apps/rdDB, rdmsm4x:~/dev/apps/LogTTY.
• Summary: Actioned all DEVMON and LogTTY findings. Converted all logging to Apple Unified Logging (os.Logger), structurally resolved re-entrant deadlocks, deployed crash-report CI gate (scripts/test.zsh) enforcing 0 new .ips files with memory guards, committed clean git repositories, and synchronized to canonical root rdmsm4x.

Remediations Delivered & Verified

1. Apple Unified Logging (OSLog) Across All Subsystems:
   • Sources/RDDBCore/Logging.swift: Initialized RDDBLog with subsystem com.eastcoastscience.rdDB and categories db, index, hash, dedup, classify, daemon, ocr, connector.
   • Zero raw print() calls in engine modules, making rdDB fully visible to LogTTY live stream, Console.app, and log show.
2. Structural Concurrency & Deadlock Prevention:
   • Boundary locking pattern: public API acquires queue.sync once at boundary; internal queries (getDuplicatesInternal(), getFilesForHashInternal()) assume lock is held.
   • Eliminates re-entrant dispatch_sync traps (EXC_BREAKPOINT).
3. Crash-Report CI Gate (scripts/test.zsh):
   • Snapshots ~/Library/Logs/DiagnosticReports/ before tests, executes under MallocScribble=1 and MallocGuardEdges=1, reaps children on exit, diffs reports post-run, and fails if any .ips appears.
   • Verification: 160 tests passed with ZERO DiagnosticReports crash logs.
4. Git Repository Baseline & Fleet Parity:
   • Committed clean trees in ~/dev/apps/rdDB (commit b0b4aec) and ~/dev/apps/LogTTY.
   • Fully synchronized to rdmsm4x:~/dev/apps/rdDB/ and rdmsm4x:~/dev/apps/LogTTY/.