docs: sync heartbeat, memory, commitments, and system-prompt docs with current behavior (#112295)

* docs: sync heartbeat, memory, commitments, and system-prompt docs with current behavior

The heartbeat doc described a removed broad default prompt; the memory doc
claimed automatic distillation that does not run on a default install; the
commitments docs advertised a snoozed status nothing currently writes; the
system-prompt doc omitted the Promised Work and Proactive Sub-Agent
Orchestration sections.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(heartbeat): describe scheduled work accurately

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: Peter Steinberger <steipete@gmail.com>

docs/cli/commitments.md

@@ -27,6 +27,8 @@ openclaw commitments dismiss <id...> [--json]
 - `--agent <id>`: filter to one agent id.
 - `--status <status>`: filter by status. Values: `pending`, `sent`,
   `dismissed`, `snoozed`, or `expired`. Unknown values exit with an error.
+  The `snoozed` status is reserved: no built-in flow currently snoozes a
+  commitment; snoozed records can appear only when imported from legacy state.
 - `--json`: output machine-readable JSON.
 
 `dismiss` marks the given commitment ids as `dismissed`.
@@ -51,10 +53,10 @@ Filter to one agent:
 openclaw commitments --agent main
 ```
 
-Find snoozed commitments:
+Filter by status:
 
 ```bash
-openclaw commitments --status snoozed
+openclaw commitments --status dismissed
 ```
 
 Dismiss one or more commitments: