feat: implement Stream Spoofing interceptor and robust format preservation patches

test/integration.proxy.test.ts

@@ -3,11 +3,13 @@ import { buildServer } from '../src/server';
 import { FastifyInstance } from 'fastify';
 import fs from 'fs';
 import path from 'path';
+import { config } from '../src/config';
 
 describe('Proxy Integration Test', () => {
   let server: FastifyInstance;
 
   beforeEach(() => {
+    config.proxyMode = 'ollama';
     server = buildServer();
     // In vitest we can mock the global fetch
     global.fetch = vi.fn();
@@ -29,6 +31,7 @@ describe('Proxy Integration Test', () => {
     // Mock fetch to return the ollama-xml-response.json
     (global.fetch as any).mockResolvedValue({
       ok: true,
+      text: async () => JSON.stringify(responseJson),
       json: async () => responseJson
     });
 
@@ -47,14 +50,14 @@ describe('Proxy Integration Test', () => {
     expect(fetchArgs[0]).toContain('/api/chat');
     
     const upstreamBody = JSON.parse(fetchArgs[1].body);
-    expect(upstreamBody.model).toBe('Huihui-Qwen3.5-27B-Claude-4.6-Opus-abliterated-4bit');
+    expect(upstreamBody.model).toBe('hotwa/qwen35-9b-agent:latest');
     
     // Verify response was rewritten
     expect(body.message.content).toBe("");
     expect(body.message.tool_calls).toBeDefined();
     expect(body.message.tool_calls).toHaveLength(1);
     expect(body.message.tool_calls[0].function.name).toBe('read');
-    expect(JSON.parse(body.message.tool_calls[0].function.arguments)).toEqual({
+    expect(body.message.tool_calls[0].function.arguments).toEqual({
       path: "/tmp/test.txt"
     });
   });