Align the openclaw side of the dynamic-* tool family with the new
Plexum design (decision #31, 2026-06-04 revision):
- trim-tool-result → dynamic-trim (same on-wire schema; same semantics)
- Drop list-tool-results entirely. Agents find the opaque tool_call_id
by reading their own prior assistant message's toolCall block id
instead of querying a separate "directory" tool. This removes a
workflow-step prerequisite and matches how Anthropic-shaped APIs
surface tool_use ids to the model anyway.
- On agent_end drain, ALSO self-compact the dynamic-trim's own
tool_use.input: rewrite to {tool_call_id, _self_compacted: true}.
Without this the bulky `replacement` text sits duplicated — once in
the rewritten target tool_result, once in dynamic-trim's call input.
Picks up the selfCallId from openclaw's execute(toolCallId, ...) first
arg (was previously discarded as _id).
Cross-runtime contract: tool name, input schema, return shape, and
sentinel prefix ("[trimmed by self] ") match Plexum's dynamic-trim
in internal/dynmem/trim.go + internal/persistence/trim.go.
Sim e2e tested: dynamic-trim queues, agent_end drain rewrites both
the target tool_result content AND the trim call's tool_use input.
No takeover errors. trimmed_bytes positive on real workloads.