refactor(q1): src/api 全量清零 any + types/monitor 扩展输入 DTO

ROADMAP Q1 推进（前端类型安全治理 in_progress）:

- src/api/ 整个目录 any 清零（含 monitor/ deploy/ 子目录 12+ 文件）
  create/update 入参 any -> Record<string, unknown> / object
  mock 桩 trace/grafana 对接 types/ 标准类型（Trace/GrafanaDashboard）
  典型接口 LdapFormData/ProbeForm 等强类型表单用 object 接收
- types/monitor.ts 扩展 ~150 行接口:
  ZabbixDatasource / AlertSilence / 7 个输入 DTO
  Trace / TraceSpan / TraceServiceMetrics / GrafanaDashboard / DashboardPanel
  HealthProbeInput

验证:
- 整个 src/api/ 目录 any=0
- ESLint no-explicit-any: 995 -> 937 (本项目此轮贡献 -58)
- tsc -b 零错误, npm run build ✓ (17.06s)
- API 回归 8/8 核心端点通过, Docker 部署 healthy

backend/static/assets/account-BE9llC-P.js

@@ -0,0 +1 @@
+import{h as c}from"./index-o4rKtKfJ.js";const o={getAccounts:async()=>c.get("/cloud-accounts"),createAccount:async n=>c.post("/cloud-accounts",n),updateAccount:async(n,t)=>c.put(`/cloud-accounts/${n}`,t),deleteAccount:async n=>c.delete(`/cloud-accounts/${n}`),syncRegions:async n=>c.post(`/cloud-accounts/${n}/sync-regions`),getAccountRegions:async n=>c.get(`/cloud-accounts/${n}/regions`),discoverInstances:async(n,t)=>c.post(`/cloud-accounts/${n}/discover-instances`,{regions:t}),importInstances:async(n,t,s)=>c.post(`/cloud-accounts/${n}/import-instances`,{instances:t,...s}),getDomains:async n=>c.get("/domains",n),createDomain:async n=>c.post("/domains",n),updateDomain:async(n,t)=>c.put(`/domains/${n}`,t),deleteDomain:async n=>c.delete(`/domains/${n}`)};export{o as c};