feat: add watchdog recovery decisions

scripts/subagent_delivery_watchdog.mjs

@@ -231,6 +231,27 @@ function recomputeStatus(payload) {
   return 'active';
 }
 
+function decideRecoveryAction(payload, status) {
+  if (!payload || typeof payload !== 'object') {
+    return null;
+  }
+
+  if (status !== 'done_but_not_forwarded') {
+    return null;
+  }
+
+  const attemptCountRaw = payload.recoveryAttemptCount;
+  const recoveryAttemptCount = Number.isFinite(attemptCountRaw)
+    ? attemptCountRaw
+    : Number.parseInt(String(attemptCountRaw ?? '0'), 10);
+
+  if (!Number.isNaN(recoveryAttemptCount) && recoveryAttemptCount >= 1) {
+    return 'respawn';
+  }
+
+  return 'fetch_history';
+}
+
 function main() {
   const args = parseArgs(process.argv.slice(2));
 
@@ -244,6 +265,7 @@ function main() {
   const dispatchWrite = writeDispatchReceiptState(inputPayload);
   const completionWrite = writeCompletionReceiptState(inputPayload);
   const status = recomputeStatus(inputPayload);
+  const recoveryDecision = decideRecoveryAction(inputPayload, status);
 
   if ('content' in input) {
     delete input.content;
@@ -272,6 +294,7 @@ function main() {
       message: status === 'not_implemented'
         ? 'Dispatch and completion receipt writes are implemented; status recompute only handles basic active/suspect/completed states.'
         : 'Basic watchdog status recompute completed.',
+      recoveryDecision,
       records,
       dispatchReceiptWrite: dispatchWrite,
       completionReceiptWrite: completionWrite,