Unify Harbor error handling across server and client

src/server/singboxRuntime.js

@@ -2,6 +2,7 @@ import crypto from 'node:crypto';
 import fs from 'node:fs';
 import { spawn, spawnSync } from 'node:child_process';
 import { setGatewayInterception } from './gatewayRouting.js';
+import { HarborError } from '../shared/errors.js';
 
 export function createSingboxRuntime({ configPath, gateway = false, tproxyChain = '' }) {
   let child = null;
@@ -44,16 +45,27 @@ export function createSingboxRuntime({ configPath, gateway = false, tproxyChain
 
     const check = spawnSync('sing-box', ['check', '-c', configPath], { encoding: 'utf8' });
     if (check.status !== 0) {
-      throw new Error((check.stderr || check.stdout || 'sing-box check failed').trim());
+      throw new HarborError('CONFIG_INVALID', {
+        cause: new Error((check.stderr || check.stdout || check.error?.message || 'sing-box check failed').trim()),
+      });
     }
 
     const nextHash = crypto.createHash('sha256').update(fs.readFileSync(configPath)).digest('hex');
     if (!force && child && nextHash === configHash) return state();
 
     await stop();
-    const current = spawn('sing-box', ['run', '-c', configPath], {
-      stdio: ['ignore', 'inherit', 'inherit'],
-    });
+    let current;
+    try {
+      current = spawn('sing-box', ['run', '-c', configPath], {
+        stdio: ['ignore', 'inherit', 'inherit'],
+      });
+      await new Promise((resolve, reject) => {
+        current.once('spawn', resolve);
+        current.once('error', reject);
+      });
+    } catch (cause) {
+      throw new HarborError('PROCESS_START_FAILED', { cause });
+    }
     child = current;
     configHash = nextHash;
     startedAt = new Date().toISOString();
@@ -64,7 +76,7 @@ export function createSingboxRuntime({ configPath, gateway = false, tproxyChain
       child = null;
       configHash = '';
       startedAt = null;
-      throw error;
+      throw new HarborError('PROCESS_START_FAILED', { cause: error });
     }
     current.once('exit', () => {
       if (child !== current) return;