feat(v1.1.9): TriggerEvent::Queue + TriggerKind::Queue + types

Add the data-shape pieces for v1.1.9's queue surface; behavior lands in
later commits. Each piece compiles independently.

- shared/trigger_event.rs: TriggerEvent::Queue variant (queue_name,
  message, enqueued_at, attempt, message_id). source() returns "queue".
  Surfaced to scripts as ctx.event.queue with op = "receive".
- manager-core/trigger_repo.rs: TriggerKind::Queue + TriggerDetails::Queue +
  CreateQueueTrigger + ActiveQueueConsumer + QueueDetailRow + QueueConsumerRow.
  PostgresTriggerRepo gains create_queue_trigger (advisory-lock-then-SELECT
  enforces one-consumer-per-queue), list_active_queue_consumers (dispatcher
  scan), touch_queue_trigger_last_fired_at. hydrate_one hydrates the Queue arm.
- manager-core/outbox_repo.rs: OutboxSourceKind::Invoke for invoke_async()
  outbox rows.
- manager-core/dispatcher.rs: placeholder OutboxSourceKind::Invoke arm (logs +
  drops the row) so the workspace compiles; real arm lands in commit 10.
- manager-core/trigger_config.rs: queue_reclaim_interval_ms (30000) +
  queue_default_visibility_timeout_secs (30) env-overridable knobs.
- executor-core/engine.rs: trigger_event_to_dynamic handles Queue → builds
  ctx.event.queue map.
- manager-core/triggers_api.rs: in-memory mock TriggerRepo gains the three
  new methods (returns Default-ish values for tests).

Unit tests: TriggerEvent::Queue serde round-trip, TriggerKind::Queue wire
round-trip, advisory_lock_key stability per (app_id, queue_name) pair.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/manager-core/src/triggers_api.rs

@@ -940,6 +940,47 @@ mod tests {
         ) -> Result<Vec<DeadLetterTriggerMatch>, TriggerRepoError> {
             Ok(vec![])
         }
+        async fn create_queue_trigger(
+            &self,
+            app_id: AppId,
+            req: crate::trigger_repo::CreateQueueTrigger,
+        ) -> Result<Trigger, TriggerRepoError> {
+            let now = Utc::now();
+            let id = TriggerId::new();
+            let trigger = Trigger {
+                id,
+                app_id,
+                script_id: req.script_id,
+                kind: TriggerKind::Queue,
+                enabled: true,
+                dispatch_mode: req.dispatch_mode,
+                retry_max_attempts: req.retry_max_attempts,
+                retry_backoff: req.retry_backoff,
+                retry_base_ms: req.retry_base_ms,
+                registered_by_principal: req.registered_by_principal,
+                created_at: now,
+                updated_at: now,
+                details: TriggerDetails::Queue {
+                    queue_name: req.queue_name,
+                    visibility_timeout_secs: req.visibility_timeout_secs,
+                    last_fired_at: None,
+                },
+            };
+            self.inner.lock().await.insert(id, trigger.clone());
+            Ok(trigger)
+        }
+        async fn list_active_queue_consumers(
+            &self,
+        ) -> Result<Vec<crate::trigger_repo::ActiveQueueConsumer>, TriggerRepoError> {
+            Ok(vec![])
+        }
+        async fn touch_queue_trigger_last_fired_at(
+            &self,
+            _trigger_id: TriggerId,
+            _at: chrono::DateTime<chrono::Utc>,
+        ) -> Result<(), TriggerRepoError> {
+            Ok(())
+        }
     }
 
     struct InMemoryAppRepo {