feat(wake): re-run one-shot task agents on their wake interval (autonomous cadence)

wake_agent only re-prompted a live persistent/loop session and returned False for a
dead one, so a "task" agent (one-shot, exits after its run) could not be re-run on a
schedule — its wake never fired. Now, for kind=="task", a wake kills+restarts the
task for a clean re-run (skipping only while its previous run is still active). This
makes scheduled work like a coverage audit recur autonomously, no operator trigger.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UWTdUq2bsic7JZGqJp3nD6

agents.py

@@ -578,6 +578,15 @@ def wake_agent(cfg, agent):
     if not wake:
         return True
     session = agent["session"]
+    # A one-shot `task` is "woken" by RE-RUNNING it fresh — it has no persistent REPL to re-prompt — so
+    # scheduled work (e.g. a coverage audit) recurs autonomously on its interval, no operator needed.
+    # Skip only while its previous run is still going; otherwise kill + restart for a clean re-run.
+    if agent.get("kind") == "task":
+        if session_alive(session) and pane_active(cfg, agent, capture_pane(session, 25)):
+            return False
+        log(f"wake: re-running task {agent['name']} ({session})")
+        start_agent(cfg, agent, force=True)
+        return True
     if not session_alive(session):
         return False
     backend = backend_of(cfg, agent)