fix(api): standardize work submission response field naming

Dockerfile.weft

@@ -16,8 +16,8 @@ COPY weft/ ./weft/
 
 # Install dependencies and build
 RUN pnpm install --frozen-lockfile || pnpm install
-RUN pnpm --filter @loom/shared build
-RUN pnpm --filter @loom/weft build
+RUN pnpm --filter @loominal/shared build
+RUN pnpm --filter @loominal/weft build
 
 # Production image
 FROM node:20-alpine AS runner

shared/src/types/work-item.ts

@@ -151,6 +151,9 @@ export interface WorkSubmitRequest {
  */
 export interface WorkSubmitResponse {
   /** Generated work item ID */
+  id: string;
+
+  /** @deprecated Use `id` instead. Provided for backward compatibility. */
   workItemId: string;
 
   /** Resolved agent type based on routing */

weft/src/coordinator/coordinator.ts

@@ -287,7 +287,8 @@ export class ExtendedCoordinator extends EventEmitter {
     }
 
     return {
-      workItemId,
+      id: workItemId,
+      workItemId, // Deprecated: for backward compatibility
       targetAgentType,
       spinUpTriggered,
       estimatedWaitSeconds,