docs: update public api docs

app/api/v1/openapi.json/route.ts

@@ -142,10 +142,21 @@ export async function GET(request: Request) {
         },
         WebhookPayload: {
           type: "object",
-          required: ["event", "job"],
+          required: ["jobId", "status", "capability", "outputAssetIds", "updatedAt"],
           properties: {
-            event: { type: "string", example: "generation.succeeded" },
-            job: { $ref: "#/components/schemas/GenerationJob" }
+            jobId: { type: "string", example: "job_mpqe3wtt_12ed738079" },
+            status: { $ref: "#/components/schemas/GenerationStatus" },
+            capability: { $ref: "#/components/schemas/GenerationCapability" },
+            outputAssetIds: { type: "array", items: { type: "string" } },
+            error: {
+              type: "object",
+              properties: {
+                code: { oneOf: [{ type: "string" }, { type: "number" }] },
+                message: { type: "string" },
+                retryable: { type: "boolean" }
+              }
+            },
+            updatedAt: { type: "string", format: "date-time" }
           }
         }
       }