[codex] Fix commitments safety and coverage (#75302)

* fix commitments safety and coverage

* Repair commitments safety PR review blockers

* fix(clawsweeper): address review for automerge-openclaw-openclaw-75302 (1)

* Repair commitments safety PR review blocker

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Co-authored-by: clawsweeper-repair <clawsweeper-repair@users.noreply.github.com>

docs/concepts/commitments.md

@@ -60,11 +60,15 @@ When it finds a high-confidence candidate, OpenClaw stores a commitment with:
 - the original channel and delivery target
 - a due window
 - a short suggested check-in
-- enough source context for heartbeat to decide whether to send it
+- non-instructional metadata for heartbeat to decide whether to send it
 
 Delivery happens through heartbeat. When a commitment becomes due, heartbeat
 adds the commitment to the heartbeat turn for the same agent and channel scope.
 The model can send one natural check-in or reply `HEARTBEAT_OK` to dismiss it.
+If heartbeat is configured with `target: "none"`, due commitments remain
+internal and do not send external check-ins. Commitment delivery prompts do not
+replay the original conversation text, and due commitment heartbeat turns run
+without OpenClaw tools.
 
 OpenClaw never delivers an inferred commitment immediately after writing it.
 The due time is clamped to at least one heartbeat interval after the commitment