huskies: merge 963

server/src/crdt_state/types.rs

@@ -134,7 +134,11 @@ pub struct Claim {
 /// The numeric prefix of the epic's story_id (e.g. `EpicId(9990)` for the
 /// epic whose CRDT story_id register holds `"9990"`).  Epics are always
 /// created with a pure-numeric story_id by `create_epic_file`.
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, serde::Serialize, serde::Deserialize)]
+///
+/// Serialises as a decimal string (`"9990"`) so JSON consumers see a stable
+/// string identifier regardless of whether the inner value fits in a JS integer.
+/// Deserialises from a decimal string.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
 pub struct EpicId(pub u32);
 
 impl EpicId {
@@ -158,6 +162,21 @@ impl std::fmt::Display for EpicId {
     }
 }
 
+impl serde::Serialize for EpicId {
+    fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+        serializer.serialize_str(&self.0.to_string())
+    }
+}
+
+impl<'de> serde::Deserialize<'de> for EpicId {
+    fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+        let s = String::deserialize(deserializer)?;
+        s.parse::<u32>()
+            .map(EpicId)
+            .map_err(serde::de::Error::custom)
+    }
+}
+
 /// A typed snapshot of a single pipeline work item derived from the CRDT document.
 ///
 /// Access fields exclusively through the typed accessor methods — raw field access is