todos: reopen an acked keyed row when the caller says so

hive-c0re/src/coordinator.rs

@@ -1439,6 +1439,8 @@ impl Coordinator {
     /// (`let _ = coord.push_todo(...).await;`); callers that track a
     /// per-target delivery outcome (e.g. the scheduled-prompts worker's
     /// `last_result` column) use it instead of assuming success.
+    /// `reopen_if_acked` forwards to `UpsertTodo` (see its doc comment) —
+    /// `false` for every caller here except the scheduled-prompts worker.
     pub async fn push_todo(
         &self,
         agent: &str,
@@ -1446,6 +1448,7 @@ impl Coordinator {
         key: Option<String>,
         summary: String,
         source: Option<String>,
+        reopen_if_acked: bool,
     ) -> Result<(), String> {
         let Ok(ident) = hive_types::Ident::parse(agent) else {
             tracing::warn!(%agent, "push_todo: not a valid agent ident, skipping");
@@ -1461,6 +1464,7 @@ impl Coordinator {
             key,
             summary,
             source,
+            reopen_if_acked,
         };
         match hive_sock_client::request::<_, hive_agent_sock::Response>(
             &path,
@@ -1482,7 +1486,10 @@ impl Coordinator {
     }
 
     /// `push_todo` to whichever agent submitted approval `approval_id` —
-    /// same resolution `notify_submitter` uses.
+    /// same resolution `notify_submitter` uses. Every caller here is a
+    /// one-shot approval-resolution notice, so `reopen_if_acked` is
+    /// unconditionally `false` — there's no reconciler/event distinction
+    /// to make for an event that only ever fires once.
     pub async fn push_todo_submitter(
         &self,
         approval_id: i64,
@@ -1492,7 +1499,7 @@ impl Coordinator {
         source: Option<String>,
     ) -> Result<(), String> {
         let target = self.submitter_or_manager(approval_id);
-        self.push_todo(&target, subsystem, key, summary, source)
+        self.push_todo(&target, subsystem, key, summary, source, false)
             .await
     }