feat(consolidation): trigger from log_work and status terminal transitions

log_work tool now invokes maybe_consolidate(reason='log_added') after a
successful create_log. The gate inside the consolidation service handles
threshold + setting checks.

update_note service snapshots old_status before mutation and fires
maybe_consolidate(reason='task_closed') when the status transitions into
'done' or 'cancelled'. Re-saving an already-terminal status doesn't
retrigger — only transitions count.

src/fabledassistant/services/tools/tasks.py

@@ -113,4 +113,8 @@ async def log_work_tool(*, user_id, arguments, **_ctx):
         log = await _create_log(user_id, note.id, content, duration_minutes)
     except ValueError as e:
         return {"success": False, "error": str(e)}
+
+    from fabledassistant.services.consolidation import maybe_consolidate
+    await maybe_consolidate(user_id, note.id, reason="log_added")
+
     return {"success": True, "log": log.to_dict(), "task": note.title}