feat(日志): 添加定时修剪项目控制台日志功能

实现每小时自动修剪项目控制台日志列表至1000条的功能
新增日志修剪工具函数和相应测试用例
在服务器关闭时清理日志修剪定时器

src/backend/routes/projects.integration.test.js

@@ -3,6 +3,7 @@ import request from 'supertest';
 
 import { createApp } from '../app.js';
 import { createFakeRedis } from '../test/fakeRedis.js';
+import { trimProjectConsoleLogsByLength } from './logs.js';
 
 describe('projects API', () => {
   it('GET /api/projects returns projects from unified list', async () => {
@@ -95,6 +96,24 @@ describe('projects API', () => {
 });
 
 describe('logs API', () => {
+  it('trimProjectConsoleLogsByLength trims *_项目控制台 lists to 1000 items', async () => {
+    const projectName = 'Demo';
+    const key = `${projectName}_项目控制台`;
+    const items = Array.from({ length: 1505 }, (_, i) => `l${i + 1}`);
+    const redis = createFakeRedis({
+      [key]: items,
+      other: [ 'x', 'y' ],
+    });
+
+    const result = await trimProjectConsoleLogsByLength(redis, { maxLen: 1000 });
+    expect(result).toMatchObject({ keysScanned: 1, keysTrimmed: 1, maxLen: 1000 });
+
+    const listItems = await redis.lRange(key, 0, -1);
+    expect(listItems.length).toBe(1000);
+    expect(listItems[0]).toBe('l506');
+    expect(listItems[listItems.length - 1]).toBe('l1505');
+  });
+
   it('GET /api/logs uses LOG_TTL_MS=24h without wiping recent logs', async () => {
     const prev = process.env.LOG_TTL_MS;
     process.env.LOG_TTL_MS = '24h';
@@ -202,6 +221,38 @@ describe('logs API', () => {
     expect(JSON.parse(listItems[0]).id).toBe('new');
   });
 
+  it('GET /api/logs keeps latest 1000 logs when all timestamps are expired', async () => {
+    const now = Date.now();
+    const projectName = 'Demo';
+    const key = `${projectName}_项目控制台`;
+    const items = Array.from({ length: 1505 }, (_, i) =>
+      JSON.stringify({
+        id: `log-${i + 1}`,
+        timestamp: new Date(now - 26 * 60 * 60 * 1000).toISOString(),
+        level: 'info',
+        message: `m${i + 1}`,
+      }),
+    );
+    const redis = createFakeRedis({
+      [key]: items,
+    });
+
+    const app = createApp({ redis });
+    const resp = await request(app)
+      .get('/api/logs')
+      .query({ projectName, limit: 1000 });
+
+    expect(resp.status).toBe(200);
+    expect(resp.body.logs.length).toBe(1000);
+    expect(resp.body.logs[0].id).toBe('log-506');
+    expect(resp.body.logs[resp.body.logs.length - 1].id).toBe('log-1505');
+
+    const listItems = await redis.lRange(key, 0, -1);
+    expect(listItems.length).toBe(1000);
+    expect(JSON.parse(listItems[0]).id).toBe('log-506');
+    expect(JSON.parse(listItems[listItems.length - 1]).id).toBe('log-1505');
+  });
+
   it('GET /api/logs keeps unix-second timestamps and prunes correctly', async () => {
     const now = Date.now();
     const nowSec = Math.floor(now / 1000);