Token Terminator 0.4.0

Highlights

• AsyncRuntime façade for responsive asyncio agent loops.
• Thread-safe cancellation tokens and cancellable RTK subprocess paths.
• WAL-backed concurrent artifact vault with multi-process safety.
• Bounded retry for transient SQLite lock races during concurrent startup.
• Updated README and migration instructions pinned to v0.4.0.

Verification

• 142 passed, 2 skipped locally.
• Python 3.10, 3.11, 3.12, and 3.13 CI passed.
• Windows CI passed.
• Package build, Twine check, release containment, and isolated installed-wheel Hermes smoke passed.
• Structural benchmark: 86.23% aggregate token reduction with 0 provider calls.