Fix UI types to match actual backend API

Validated against live OpenAPI spec at /api/v1/api-docs. Fixes:
- duration → durationMs (all models)
- Remove processorCount (not in ExecutionSummary)
- Remove ProcessorNode.index and .uri (not in backend)
- ProcessorSnapshot is Record<string,string>, not structured object
- Add missing fields: endTime, diagramContentHash, exchangeId, etc.
- Save openapi.json from live server

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

ui/src/api/schema.d.ts

@@ -1,6 +1,6 @@
 /**
- * Hand-written OpenAPI types matching the cameleer3 server REST API.
- * Will be replaced by openapi-typescript codegen once backend is running.
+ * Types matching the cameleer3 server REST API (validated against live OpenAPI spec).
+ * Generated from: GET /api/v1/api-docs
  */
 
 export interface paths {
@@ -88,7 +88,7 @@ export interface paths {
       responses: {
         200: {
           content: {
-            'application/json': ExchangeSnapshot;
+            'application/json': ProcessorSnapshot;
           };
         };
         404: { content: { 'application/json': { message: string } } };
@@ -137,45 +137,46 @@ export interface ExecutionSummary {
   executionId: string;
   routeId: string;
   agentId: string;
-  status: 'COMPLETED' | 'FAILED' | 'RUNNING';
+  status: string;
   startTime: string;
-  duration: number;
-  processorCount: number;
+  endTime: string | null;
+  durationMs: number;
   correlationId: string | null;
   errorMessage: string | null;
+  diagramContentHash: string | null;
 }
 
 export interface ExecutionDetail {
   executionId: string;
   routeId: string;
   agentId: string;
-  status: 'COMPLETED' | 'FAILED' | 'RUNNING';
+  status: string;
   startTime: string;
-  duration: number;
+  endTime: string | null;
+  durationMs: number;
   correlationId: string | null;
+  exchangeId: string | null;
   errorMessage: string | null;
+  errorStackTrace: string | null;
+  diagramContentHash: string | null;
   processors: ProcessorNode[];
 }
 
 export interface ProcessorNode {
-  index: number;
   processorId: string;
   processorType: string;
-  uri: string | null;
-  status: 'COMPLETED' | 'FAILED' | 'RUNNING';
-  duration: number;
+  status: string;
+  startTime: string;
+  endTime: string | null;
+  durationMs: number;
+  diagramNodeId: string | null;
   errorMessage: string | null;
+  errorStackTrace: string | null;
   children: ProcessorNode[];
 }
 
-export interface ExchangeSnapshot {
-  exchangeId: string;
-  correlationId: string | null;
-  bodyType: string | null;
-  body: string | null;
-  headers: Record<string, string> | null;
-  properties: Record<string, string> | null;
-}
+/** Processor snapshot is a flat key-value map (Map<String, String> in Java) */
+export type ProcessorSnapshot = Record<string, string>;
 
 export interface AgentInstance {
   agentId: string;