feat: 模块化命令框架 + runbook 严格断言与查询结果回传

- core/module: 命令模板、门控（feature flag/confirm/dry-run）、ecode 错误标签、ResultFormatter
- runbook executor: http.get/http.post/assert.json(expect_success 严格断言)、目标主机管理、任务落库、最终 stdout 直接回传
- cf 模块: /cf dns list 支持域名自动解析 zone_id；dns list/zones/workers list 格式化回传；API success:false 判真失败
- 全部 CF/CPA runbook 接入严格断言，杜绝假阳性 success
- 新增 cpa/cfdav/mail/sub 模块与 runbooks；QQ 订阅到期提醒调度
- Web 后台: 模块设置(CF/CPA/cfdav/AI)、OPS 任务、渠道管理、审计页

templates/login.html

@@ -3,26 +3,39 @@
 <head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<title>🦞 虾记 - 登录</title>
+<title>🛠️ Ops-Assistant - 登录</title>
 <style>
+:root{
+  --bg:#0f172a;
+  --card:#111827;
+  --text:#e5e7eb;
+  --muted:#9ca3af;
+  --border:#1f2937;
+  --accent:#f97316;
+  --accent2:#ea580c;
+}
 * { margin: 0; padding: 0; box-sizing: border-box; }
 body {
   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
-  background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 50%, #f39c12 100%);
+  background: radial-gradient(1200px 600px at 10% 10%, rgba(249,115,22,.18), transparent 60%),
+              radial-gradient(900px 500px at 90% 10%, rgba(234,88,12,.18), transparent 60%),
+              var(--bg);
   min-height: 100vh;
   display: flex;
   align-items: center;
   justify-content: center;
   padding: 20px;
+  color: var(--text);
 }
 
 .login-card {
-  background: #fff;
-  border-radius: 20px;
-  padding: 40px 32px;
+  background: var(--card);
+  border-radius: 16px;
+  padding: 36px 30px;
   width: 100%;
   max-width: 380px;
-  box-shadow: 0 20px 60px rgba(0,0,0,.2);
+  border: 1px solid var(--border);
+  box-shadow: 0 20px 60px rgba(0,0,0,.35);
   animation: slideUp .4s ease;
 }
 
@@ -33,51 +46,54 @@ body {
 
 .login-logo {
   text-align: center;
-  margin-bottom: 28px;
+  margin-bottom: 24px;
 }
-.login-logo .icon { font-size: 52px; }
+.login-logo .icon { font-size: 48px; }
 .login-logo h1 {
   font-size: 22px;
-  color: #333;
+  color: var(--text);
   margin-top: 8px;
 }
 .login-logo .subtitle {
   font-size: 13px;
-  color: #999;
+  color: var(--muted);
   margin-top: 4px;
 }
 
 .form-group {
-  margin-bottom: 18px;
+  margin-bottom: 16px;
 }
 .form-group label {
   display: block;
   font-size: 13px;
-  color: #666;
+  color: var(--muted);
   margin-bottom: 6px;
   font-weight: 500;
 }
 .form-group input {
   width: 100%;
-  padding: 12px 16px;
-  border: 2px solid #eee;
+  padding: 12px 14px;
+  border: 1px solid var(--border);
   border-radius: 10px;
   font-size: 15px;
-  transition: border-color .2s;
+  transition: border-color .2s, box-shadow .2s;
   outline: none;
+  background: #0b1220;
+  color: var(--text);
 }
 .form-group input:focus {
-  border-color: #ee5a24;
+  border-color: var(--accent);
+  box-shadow: 0 0 0 2px rgba(249,115,22,.2);
 }
 
 .btn-login {
   width: 100%;
-  padding: 13px;
-  background: linear-gradient(135deg, #ff6b6b, #ee5a24);
+  padding: 12px;
+  background: linear-gradient(135deg, var(--accent), var(--accent2));
   color: #fff;
   border: none;
   border-radius: 10px;
-  font-size: 16px;
+  font-size: 15px;
   font-weight: 600;
   cursor: pointer;
   transition: opacity .2s, transform .1s;
@@ -87,14 +103,14 @@ body {
 .btn-login:active { transform: scale(.98); }
 
 .error-msg {
-  background: #fff2f0;
-  color: #e74c3c;
+  background: rgba(239,68,68,.12);
+  color: #fca5a5;
   padding: 10px 14px;
   border-radius: 8px;
   font-size: 13px;
-  margin-bottom: 16px;
+  margin-bottom: 14px;
   text-align: center;
-  border: 1px solid #fde2e0;
+  border: 1px solid rgba(239,68,68,.3);
 }
 </style>
 </head>
@@ -102,7 +118,7 @@ body {
 <div class="login-card">
   <div class="login-logo">
     <div class="icon">🦞</div>
-    <h1>虾记记账</h1>
+    <h1>Ops-Assistant</h1>
     <div class="subtitle">{{.version}}</div>
   </div>
 
@@ -119,7 +135,7 @@ body {
       <label>密码</label>
       <input type="password" name="password" placeholder="请输入密码" autocomplete="current-password" required>
     </div>
-    <button type="submit" class="btn-login">登 录</button>
+    <button class="btn-login" type="submit">登录</button>
   </form>
 </div>
 </body>