scheduled prompts: edit existing schedule (closes #474)

hive-sh4re/src/lib.rs

@@ -948,6 +948,25 @@ pub enum ManagerRequest {
     /// + any owned by a sub-agent in its subtree per topology.json;
     /// the operator surface bypasses the check.
     FireScheduleNow { id: i64 },
+    /// Edit an existing schedule's mutable fields (#474). Partial
+    /// PATCH semantics: `None` / missing JSON key = leave alone,
+    /// `Some(_)` = set. `interval_seconds` and `description` are
+    /// doubly-wrapped so `Some(None)` (set explicit null) can flip
+    /// a recurring schedule back to one-shot / clear the
+    /// description, while plain `None` keeps the current value.
+    /// Targets stay immutable. Refuses cancelled rows.
+    /// Authorization mirrors `CancelSchedule`.
+    EditSchedule {
+        id: i64,
+        #[serde(default, skip_serializing_if = "Option::is_none")]
+        body: Option<String>,
+        #[serde(default, skip_serializing_if = "Option::is_none")]
+        description: Option<Option<String>>,
+        #[serde(default, skip_serializing_if = "Option::is_none")]
+        interval_seconds: Option<Option<u64>>,
+        #[serde(default, skip_serializing_if = "Option::is_none")]
+        next_fire_at_unix: Option<i64>,
+    },
 }
 
 /// Submission payload for `RequestSchedulePrompt`. Lives outside the