feat(agents, config, dashboard, i18n): add agent line provision wizard, site deletion, and site dashboard with multi-language support

Added agent line provision wizard page with permission gating, replacing redirect placeholder. Introduced site deletion API and UI with confirmation dialog in integration sites management. Added new site-scoped dashboard panel showing bet metrics, P/L trends, active players, and quick links. Enhanced chart tooltip to support custom formatters and fix indicator color

src/i18n/locales/zh/config.json

@@ -72,6 +72,13 @@
     "rotateConfirmTitle": "确认重置密钥？",
     "rotateConfirmDescription": "将重新生成站点 {{code}} 的 SSO 与钱包密钥，旧密钥立即失效。",
     "rotateConfirm": "确认重置",
+    "delete": "删除站点",
+    "deleteSuccess": "已删除站点 {{code}}",
+    "deleteFailed": "删除站点失败",
+    "deleteConfirmTitle": "确认删除站点？",
+    "deleteConfirmDescription": "将永久删除站点 {{code}}（{{name}}）及其代理链、账期、玩家与站点后台账号，此操作不可恢复。",
+    "deleteConfirm": "确认删除",
+    "deleting": "删除中…",
     "secretsTitle": "请妥善保存密钥",
     "secretsDescription": "站点 {{code}} 的密钥仅显示一次，关闭后无法再次查看完整内容。",
     "secretsDismiss": "我已保存",