fix: close concurrency, recovery, and filesystem gaps in v6.2.10

[Da7-Tech]

What changed

• serialize each semantic graph operation under the existing graph lock
• make prune archive/provenance delivery crash-recoverable with an idempotent outbox
• harden reads, appends, locks, exports, and directory creation against special files, links, parent swaps, short writes, stale rewrites, and Windows atomic-replacement races
• bound graph, query, journal, dream, cortex, and prune resource usage
• preserve concurrent signals, cortex promotions, corrections, links, confirms, duplicate remembers, and exports
• quarantine corrupt prune recovery state instead of bricking every command
• keep Python 3.9 and Windows compatibility and close concurrent directory/lock creation races
• correct documentation claims, benchmark figures, integrity checksum, and release metadata for 6.2.10

Why

The 6.2.9 freshness veto watched only confirmation fields and whole-node writes could still erase concurrent corrections or links. Archive delivery also happened before the graph decision was final. A broader audit found additional stale export, unsafe file-object, resource exhaustion, rendering, crash recovery, cross-platform, and same-process concurrency gaps.

User impact

Normal single-writer use remains compatible. Concurrent writers now preserve semantic operations instead of relying on stale merge heuristics. Unsafe or damaged auxiliary files are skipped or quarantined with explicit warnings. Resource ceilings are documented and enforced.

Verification

• 267/267 unit tests on Python 3.9 and Python 3.14
• full fuzz: 420/420
• multilingual: 24/24
• discrimination: 12/12
• 180-day soak: 15/15 core survival, 0/256 stale noise, 8/8 hot slots
• recall@1/5: 1.00/1.00 at 100 and 1,000 nodes
• mutation sample: 46/120 killed, 38%
• concurrent cortex promotion stress: 50/50 on Python 3.9 and 50/50 on Python 3.14
• final mind.py SHA-256: 7cb64a6bb96824a6ac00d8871b889b02d57526fc9a70cf33488ae443c8bf139c

[HIHACK1911]

Thank you for all the information.
A mind free from ill will, filled only with determination and forward-looking spirit in the universe and among brain cells.