dc4a1ef241
Implements acquireLock() in src/runtime/lockfile.ts that writes a PID-stamped lock file under workspaces_root, detects live vs stale locks via process.kill(pid, 0), and returns a release function. src/index.ts acquires the lock before DB init and releases it in the graceful-shutdown handler. Four unit tests cover acquire, duplicate- acquire rejection, stale-lock recovery, and release. |
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