refactor: simplify Anthropic client config using baseURL

Remove https-proxy-agent dependency since ANTHROPIC_BASE_URL already
supports pointing to a proxy server directly.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -232,7 +232,6 @@ services:
       REDIS_URL: redis://:${REDIS_PASSWORD:-redis123}@redis:6379
       ANTHROPIC_API_KEY: ${ANTHROPIC_API_KEY}
       ANTHROPIC_BASE_URL: ${ANTHROPIC_BASE_URL:-https://api.anthropic.com}
-      ANTHROPIC_PROXY_URL: ${ANTHROPIC_PROXY_URL:-}
       KNOWLEDGE_SERVICE_URL: http://knowledge-service:3003
       CORS_ORIGINS: https://iconsulting.szaiai.com,http://localhost:5173
     ports:
@@ -263,7 +262,6 @@ services:
       REDIS_URL: redis://:${REDIS_PASSWORD:-redis123}@redis:6379
       ANTHROPIC_API_KEY: ${ANTHROPIC_API_KEY}
       ANTHROPIC_BASE_URL: ${ANTHROPIC_BASE_URL:-https://api.anthropic.com}
-      ANTHROPIC_PROXY_URL: ${ANTHROPIC_PROXY_URL:-}
     ports:
       - "3005:3005"
     networks:

packages/services/conversation-service/package.json

@@ -31,8 +31,7 @@
     "rxjs": "^7.8.0",
     "socket.io": "^4.8.3",
     "typeorm": "^0.3.19",
-    "uuid": "^9.0.0",
-    "https-proxy-agent": "^7.0.6"
+    "uuid": "^9.0.0"
   },
   "devDependencies": {
     "@nestjs/cli": "^10.0.0",

packages/services/conversation-service/src/infrastructure/claude/claude-agent.service.ts

@@ -1,7 +1,6 @@
 import { Injectable, OnModuleInit } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import Anthropic from '@anthropic-ai/sdk';
-import { HttpsProxyAgent } from 'https-proxy-agent';
 import { ImmigrationToolsService } from './tools/immigration-tools.service';
 import { buildSystemPrompt, SystemPromptConfig } from './prompts/system-prompt';
 
@@ -34,20 +33,17 @@ export class ClaudeAgentService implements OnModuleInit {
   ) {}
 
   onModuleInit() {
-    const proxyUrl = this.configService.get<string>('ANTHROPIC_PROXY_URL');
-    const clientOptions: ConstructorParameters<typeof Anthropic>[0] = {
+    const baseUrl = this.configService.get<string>('ANTHROPIC_BASE_URL');
+
+    this.client = new Anthropic({
       apiKey: this.configService.get<string>('ANTHROPIC_API_KEY'),
-    };
+      baseURL: baseUrl || undefined,
+    });
 
-    // Configure proxy if specified
-    if (proxyUrl) {
-      console.log(`Using proxy for Anthropic API: ${proxyUrl}`);
-      const agent = new HttpsProxyAgent(proxyUrl);
-      clientOptions.httpAgent = agent;
+    if (baseUrl) {
+      console.log(`Using Anthropic API base URL: ${baseUrl}`);
     }
 
-    this.client = new Anthropic(clientOptions);
-
     // Initialize with default config
     this.systemPromptConfig = {
       identity: '专业、友善、耐心的香港移民顾问',

pnpm-lock.yaml

@@ -132,9 +132,6 @@ importers:
       class-validator:
         specifier: ^0.14.0
         version: 0.14.3
-      https-proxy-agent:
-        specifier: ^7.0.6
-        version: 7.0.6
       ioredis:
         specifier: ^5.3.0
         version: 5.9.1
@@ -3553,11 +3550,6 @@ packages:
       - supports-color
     dev: false
 
-  /agent-base@7.1.4:
-    resolution: {integrity: sha512-MnA+YT8fwfJPgBx3m60MNqakm30XOkyIoH1y6huTQvC0PwZG7ki8NacLBcrPbNoo8vEZy7Jpuk7+jMO+CUovTQ==}
-    engines: {node: '>= 14'}
-    dev: false
-
   /agentkeepalive@4.6.0:
     resolution: {integrity: sha512-kja8j7PjmncONqaTsB8fQ+wE2mSU2DJ9D4XKoJ5PFWIdRMa6SLSN1ff4mOr4jCbfRSsxR4keIiySJU0N9T5hIQ==}
     engines: {node: '>= 8.0.0'}
@@ -5596,16 +5588,6 @@ packages:
       - supports-color
     dev: false
 
-  /https-proxy-agent@7.0.6:
-    resolution: {integrity: sha512-vK9P5/iUfdl95AI+JVyUuIcVtd4ofvtrOr3HNtM2yxC9bnMbEdp3x01OhQNnjb8IJYi38VlTE3mBXwcfvywuSw==}
-    engines: {node: '>= 14'}
-    dependencies:
-      agent-base: 7.1.4
-      debug: 4.4.3
-    transitivePeerDependencies:
-      - supports-color
-    dev: false
-
   /human-signals@2.1.0:
     resolution: {integrity: sha512-B4FFZ6q/T2jhhksgkbEW3HBvWIfDW85snkQgawt07S7J5QXTk6BkNV+0yAeZrM5QpMAdYlocGoljn0sJ/WQkFw==}
     engines: {node: '>=10.17.0'}