feat(config, i18n): add integration guide documentation page with multi-language support

Added new integration guide page accessible from config hub, providing SSO and wallet integration documentation for client engineering teams. Includes translations in English, Nepali, and Chinese. Refactored percentage conversion utilities across agent management modules to use consistent `percentValueToUi` function, removing deprecated `ratioToPercentUi` and `percentUiToRatio` helpers.

src/i18n/locales/en/config.json

@@ -32,7 +32,12 @@
     "riskCapTitle": "Risk cap rules",
     "riskCapDesc": "Per-number payout caps and occupancy",
     "integrationTitle": "Integration sites",
-    "integrationDesc": "site_code, JWT secrets, partner wallet URL, iframe allowlist"
+    "integrationDesc": "site_code, JWT secrets, partner wallet URL, iframe allowlist",
+    "integrationGuideTitle": "Client integration guide",
+    "integrationGuideDesc": "SSO and wallet integration document for client engineering teams, with index, examples, and test flow"
+  },
+  "integrationGuide": {
+    "title": "Lottery client integration guide"
   },
   "integrationSites": {
     "title": "Integration sites",

src/i18n/locales/ne/config.json

@@ -32,7 +32,12 @@
     "riskCapTitle": "जोखिम क्याप",
     "riskCapDesc": "नम्बर क्याप र ओगट उपस्थिति",
     "integrationTitle": "मुख्य साइट एकीकरण",
-    "integrationDesc": "site_code, JWT गोप्य, पार्टनर वालेट URL र iframe श्वेतसूची"
+    "integrationDesc": "site_code, JWT गोप्य, पार्टनर वालेट URL र iframe श्वेतसूची",
+    "integrationGuideTitle": "ग्राहक एकीकरण दस्तावेज",
+    "integrationGuideDesc": "ग्राहक प्राविधिक टोलीका लागि SSO र वालेट एकीकरण दस्तावेज, अनुक्रमणिका, उदाहरण र परीक्षण प्रवाह सहित"
+  },
+  "integrationGuide": {
+    "title": "लटरी ग्राहक एकीकरण दस्तावेज"
   },
   "integrationSites": {
     "title": "मुख्य साइट एकीकरण साइटहरू",

src/i18n/locales/zh/config.json

@@ -32,7 +32,12 @@
     "riskCapTitle": "限额版本",
     "riskCapDesc": "号码赔付封顶与占用视图",
     "integrationTitle": "接入站点",
-    "integrationDesc": "site_code、JWT 密钥、主站钱包 URL 与 iframe 白名单"
+    "integrationDesc": "site_code、JWT 密钥、主站钱包 URL 与 iframe 白名单",
+    "integrationGuideTitle": "客户接入文档",
+    "integrationGuideDesc": "给客户技术团队的 SSO 与钱包接入文档，含目录、示例与联调流程"
+  },
+  "integrationGuide": {
+    "title": "彩票端客户接入文档"
   },
   "integrationSites": {
     "title": "接入站点",