OpenClaw Signals: Zombie Teardowns, Bus Handler Syncs, and Glob Sandboxing

Architecture

PR #330: Structural Sync Removal in Bus Handlers

Removing async dependencies isn't just optimization—it's decoupling the agent lifecycle from bus faults. This PR flattens the handler graph to make the state machine more predictable.

Hotfix

Issues #1559 & #1560: Process Intent Teardowns

Zombie processes are a silent killer for orchestration throughput. This fix ensures that when an agent halts, the 'process intent' actually results in a full teardown, preventing resource leaks over time.

Refactor

PR #327: Filter Module Glob Handling

This patch moves file-glob matching into the safety filter math. It's a critical gap close for builders trying to sandbox file access without writing custom policy code from scratch.

Infrastructure

PR #328: Registry Consistency Logic

The registry refactor is focused on namespace collision prevention during rapid restarts. If you're running high-density clusters, this fixes the edge case where agents steal each other's IDs.