fix: align frontend API paths with backend endpoints

- handoffs: /handoffs/queue → /ai-sessions/queue, claim needs sessionId
- resolutions: /resolution-outputs → /outputs
- branches: /status suffix removed from PATCH path
- Add SessionQueuePage route at /queue

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/api/branches.ts

@@ -32,8 +32,8 @@ export const branchesApi = {
     reason?: string
   ): Promise<void> {
     await apiClient.patch(
-      `/ai-sessions/${sessionId}/branches/${branchId}/status`,
-      { status, reason }
+      `/ai-sessions/${sessionId}/branches/${branchId}`,
+      { status, status_reason: reason }
     )
   },
 

frontend/src/api/handoffs.ts

@@ -21,15 +21,15 @@ export const handoffsApi = {
     return response.data
   },
 
-  async claimHandoff(handoffId: string): Promise<HandoffResponse> {
+  async claimHandoff(sessionId: string, handoffId: string): Promise<HandoffResponse> {
     const response = await apiClient.post<HandoffResponse>(
-      `/handoffs/${handoffId}/claim`
+      `/ai-sessions/${sessionId}/handoffs/${handoffId}/claim`
     )
     return response.data
   },
 
   async getQueue(params?: { intent?: 'park' | 'escalate'; limit?: number }): Promise<QueueItemResponse[]> {
-    const response = await apiClient.get<QueueItemResponse[]>('/handoffs/queue', {
+    const response = await apiClient.get<QueueItemResponse[]>('/ai-sessions/queue', {
       params,
     })
     return response.data

frontend/src/api/resolutions.ts

@@ -9,7 +9,7 @@ import type {
 export const resolutionsApi = {
   async getOutputs(sessionId: string): Promise<AllResolutionOutputsResponse> {
     const response = await apiClient.get<AllResolutionOutputsResponse>(
-      `/ai-sessions/${sessionId}/resolution-outputs`
+      `/ai-sessions/${sessionId}/outputs`
     )
     return response.data
   },
@@ -20,7 +20,7 @@ export const resolutionsApi = {
     data: ResolutionOutputEditRequest
   ): Promise<ResolutionOutputResponse> {
     const response = await apiClient.patch<ResolutionOutputResponse>(
-      `/ai-sessions/${sessionId}/resolution-outputs/${outputId}`,
+      `/ai-sessions/${sessionId}/outputs/${outputId}`,
       data
     )
     return response.data
@@ -32,7 +32,7 @@ export const resolutionsApi = {
     data: ResolutionOutputPushRequest
   ): Promise<ResolutionOutputResponse> {
     const response = await apiClient.post<ResolutionOutputResponse>(
-      `/ai-sessions/${sessionId}/resolution-outputs/${outputId}/push`,
+      `/ai-sessions/${sessionId}/outputs/${outputId}/push`,
       data
     )
     return response.data