fix(events): fix typecheck errors in event routes, DLQ service, and TaskResource schema

- Fix resource callback signature in history/stats loader routes (first arg is resource, not params)
- Add missing onEventFilter and onEventPattern to TaskResource schema in resources.ts
- Fix JSON.parse return type narrowing in DeadLetterService.extractPayload

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: giovaborgogno

apps/webapp/app/routes/api.v1.events.$eventId.history.ts

@@ -13,7 +13,7 @@ export const loader = createLoaderApiRoute(
     corsStrategy: "all",
     authorization: {
       action: "read",
-      resource: (params) => ({ tasks: params.eventId }),
+      resource: (_resource, params) => ({ tasks: params.eventId }),
       superScopes: ["read:runs", "read:all", "admin"],
     },
     findResource: async () => 1 as const,

apps/webapp/app/routes/api.v1.events.$eventId.stats.ts

@@ -13,7 +13,7 @@ export const loader = createLoaderApiRoute(
     corsStrategy: "all",
     authorization: {
       action: "read",
-      resource: (params) => ({ tasks: params.eventId }),
+      resource: (_resource, params) => ({ tasks: params.eventId }),
       superScopes: ["read:runs", "read:all", "admin"],
     },
     findResource: async () => 1 as const,

apps/webapp/app/v3/services/events/deadLetterService.server.ts

@@ -75,7 +75,8 @@ export class DeadLetterService extends BaseService {
   private extractPayload(run: TaskRun): object {
     try {
       if (typeof run.payload === "string") {
-        return JSON.parse(run.payload);
+        const parsed: unknown = JSON.parse(run.payload);
+        return typeof parsed === "object" && parsed !== null ? (parsed as object) : { raw: parsed };
       }
       return { raw: run.payload };
     } catch {

packages/core/src/v3/schemas/resources.ts

@@ -16,6 +16,8 @@ export const TaskResource = z.object({
   // JSONSchema type - using z.unknown() for runtime validation to accept JSONSchema7
   payloadSchema: z.unknown().optional(),
   onEvent: z.string().optional(),
+  onEventFilter: z.unknown().optional(),
+  onEventPattern: z.string().optional(),
   onEventConsumerGroup: z.string().optional(),
 });