fix: support multiple keys per action and harden runtime/parsing

src/lib/event-feed.ts

@@ -9,8 +9,13 @@ export function decodeEvent(msg: SseMessage): FeedEvent | null {
     const inner = JSON.parse(outer.data) as Record<string, unknown>;
 
     if (outer.type === "inflight") {
-      const requests: InflightRequest[] =
-        (inner.requests as InflightRequest[]) ?? (inner.request ? [inner.request as InflightRequest] : []);
+      const requests: InflightRequest[] = Array.isArray(inner.requests)
+        ? (inner.requests as InflightRequest[])
+        : Array.isArray(inner.request)
+          ? (inner.request as InflightRequest[])
+          : inner.request && typeof inner.request === "object"
+            ? [inner.request as InflightRequest]
+            : [];
       return {
         type: "inflight",
         operation: inner.operation as "snapshot" | "add" | "remove",
@@ -19,6 +24,7 @@ export function decodeEvent(msg: SseMessage): FeedEvent | null {
     }
 
     if (outer.type === "modelStatus") {
+      if (!Array.isArray(inner)) return null;
       return { type: "modelStatus", models: inner as unknown as ModelState[] };
     }