fix(dev-server): 修复开发服务器和前端兼容性问题

修复内容:
1. 修复 dev_server.rs 编译错误 - 使用 Vec::new() 替代数组转换
2. 修复 pipeline-client.ts - 添加 Tauri 运行时检测和开发服务器 fallback
3. 更新 troubleshooting.md - 添加开发服务器使用说明

测试结果:
- 所有前端模块正常加载
- 开发服务器 API 响应正确
- 类型检查通过

desktop/src/lib/pipeline-client.ts

@@ -11,6 +11,30 @@ import { listen, type UnlistenFn } from '@tauri-apps/api/event';
 // Re-export UnlistenFn for external use
 export type { UnlistenFn };
 
+// === Tauri Runtime Detection ===
+
+function isTauriRuntime(): boolean {
+  return typeof window !== 'undefined' && '__TAURI_INTERNALS__' in window;
+}
+
+const DEV_SERVER_URL = 'http://localhost:50051';
+
+async function devServerFetch<T>(endpoint: string, options?: RequestInit): Promise<T> {
+  const response = await fetch(`${DEV_SERVER_URL}${endpoint}`, {
+    ...options,
+    headers: {
+      'Content-Type': 'application/json',
+      ...options?.headers,
+    },
+  });
+  
+  if (!response.ok) {
+    throw new Error(`Dev server error: ${response.status}`);
+  }
+  
+  return response.json();
+}
+
 // === Types ===
 
 export interface PipelineInputInfo {
@@ -78,6 +102,10 @@ export class PipelineClient {
     category?: string;
     industry?: string;
   }): Promise<PipelineInfo[]> {
+    if (!isTauriRuntime()) {
+      return devServerFetch<PipelineInfo[]>('/api/pipelines');
+    }
+    
     try {
       const pipelines = await invoke<PipelineInfo[]>('pipeline_list', {
         category: options?.category || null,
@@ -94,6 +122,10 @@ export class PipelineClient {
    * Get a specific pipeline by ID
    */
   static async getPipeline(pipelineId: string): Promise<PipelineInfo> {
+    if (!isTauriRuntime()) {
+      return devServerFetch<PipelineInfo>(`/api/pipelines/${pipelineId}`);
+    }
+    
     try {
       const pipeline = await invoke<PipelineInfo>('pipeline_get', {
         pipelineId,
@@ -109,6 +141,13 @@ export class PipelineClient {
    * Run a pipeline with the given inputs
    */
   static async runPipeline(request: RunPipelineRequest): Promise<RunPipelineResponse> {
+    if (!isTauriRuntime()) {
+      return devServerFetch<RunPipelineResponse>('/api/pipelines/run', {
+        method: 'POST',
+        body: JSON.stringify({ request }),
+      });
+    }
+    
     try {
       const response = await invoke<RunPipelineResponse>('pipeline_run', {
         request,
@@ -124,6 +163,10 @@ export class PipelineClient {
    * Get the progress of a running pipeline
    */
   static async getProgress(runId: string): Promise<PipelineRunResponse> {
+    if (!isTauriRuntime()) {
+      return devServerFetch<PipelineRunResponse>(`/api/pipelines/${runId}/progress`);
+    }
+    
     try {
       const progress = await invoke<PipelineRunResponse>('pipeline_progress', {
         runId,
@@ -139,6 +182,10 @@ export class PipelineClient {
    * Get the result of a completed pipeline run
    */
   static async getResult(runId: string): Promise<PipelineRunResponse> {
+    if (!isTauriRuntime()) {
+      return devServerFetch<PipelineRunResponse>(`/api/pipelines/${runId}/result`);
+    }
+    
     try {
       const result = await invoke<PipelineRunResponse>('pipeline_result', {
         runId,
@@ -154,6 +201,11 @@ export class PipelineClient {
    * Cancel a running pipeline
    */
   static async cancel(runId: string): Promise<void> {
+    if (!isTauriRuntime()) {
+      await devServerFetch<void>(`/api/pipelines/${runId}/cancel`, { method: 'POST' });
+      return;
+    }
+    
     try {
       await invoke('pipeline_cancel', { runId });
     } catch (error) {
@@ -166,6 +218,10 @@ export class PipelineClient {
    * List all runs
    */
   static async listRuns(): Promise<PipelineRunResponse[]> {
+    if (!isTauriRuntime()) {
+      return devServerFetch<PipelineRunResponse[]>('/api/pipelines/runs');
+    }
+    
     try {
       const runs = await invoke<PipelineRunResponse[]>('pipeline_runs');
       return runs;
@@ -179,6 +235,10 @@ export class PipelineClient {
    * Refresh pipeline discovery (rescan filesystem)
    */
   static async refresh(): Promise<PipelineInfo[]> {
+    if (!isTauriRuntime()) {
+      return devServerFetch<PipelineInfo[]>('/api/pipelines/refresh', { method: 'POST' });
+    }
+    
     try {
       const pipelines = await invoke<PipelineInfo[]>('pipeline_refresh');
       return pipelines;