feat: 新增运动节拍训练工具套件与子工具页面

新增运动节拍RepClock全套小程序页面、后端API与数据库服务，新增subhub子工具汇总页面，优化全局主页样式与配置，为web静态资源添加版本缓存参数，补充配套调试脚本

dev_test_scripts/debug/debug_409_with_expires.js

@@ -0,0 +1,58 @@
+const path = require('path')
+process.chdir('d:/Trae_Files/TRAE-Toolbox')
+const http = require('http')
+const db = require(path.join(process.cwd(), 'src/server/mp_rep_clock/db'))
+const locks = require(path.join(process.cwd(), 'src/server/mp_rep_clock/locks'))
+const store = require(path.join(process.cwd(), 'src/server/mp_rep_clock/kits/rep_clock/store'))
+
+// 清锁先
+locks.resetRunningLock()
+const nowIso = () => new Date().toISOString()
+db.getDb().prepare(`UPDATE rc_sessions SET status='abandoned', ended_at=?, updated_at=?, manual_stopped=1 WHERE status='running' AND deleted=0`).run(nowIso(), nowIso())
+
+const cardId = 'rc_card_c6aebdfb-7330-43c1-b42c-a6a856a715f2'
+
+// 1. 直接 Node 层 reserve + createSession，模拟"第一发start成功"
+const s1 = store.createSession({ cardId })
+const r1 = locks.reserveRunningLock(s1.id)
+console.log('== 1st createSession OK ==')
+console.log('session1 id:', s1.id, 'status=', s1.status)
+console.log('lock reserve1:', JSON.stringify(r1))
+
+// 2. 再调用一次 createSession（第二发 start 模拟冲突），但不清锁
+const s2 = store.createSession({ cardId })
+const r2 = locks.reserveRunningLock(s2.id)
+console.log('\n== 2nd 故意冲突 ==')
+console.log('session2 id:', s2.id)
+console.log('lock reserve2:', JSON.stringify(r2))
+console.log('字段检查：expiresInMs 存在？', typeof r2.expiresInMs, r2.expiresInMs, '秒=', Math.ceil(r2.expiresInMs/1000))
+
+// 3. 再用 HTTP 调 sessions/start 直接看 409 body（等价于用户 curl）
+console.log('\n== 3rd HTTP POST sessions/start ==')
+const payload = JSON.stringify({ cardId })
+const req = http.request({
+  hostname: '127.0.0.1', port: 8976,
+  path: '/api/mp_rep_clock/kits/rep_clock/sessions/start',
+  method: 'POST',
+  headers: {
+    'Content-Type': 'application/json; charset=utf-8',
+    'Content-Length': Buffer.byteLength(payload),
+    'X-Mp-Timeassistant': 'probe_v1',
+  }
+}, (res) => {
+  let buf = ''
+  res.on('data', c => buf += c)
+  res.on('end', () => {
+    console.log('HTTP', res.statusCode)
+    console.log('BODY:', buf)
+    try {
+      const j = JSON.parse(buf)
+      console.log('字段检查 expiresInMs =', j.expiresInMs, '秒=', Math.ceil(j.expiresInMs/1000))
+      console.log('字段检查 conflictSessionId =', j.conflictSessionId)
+      console.log('字段检查 expiredLockCleared =', j.expiredLockCleared)
+    } catch(e){ console.log('not json:', e.message) }
+  })
+})
+req.on('error', e => console.log('err', e.message))
+req.write(payload)
+req.end()