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/en/dashboard.json

@@ -156,9 +156,35 @@
     "riskMonitor": "Risk monitor",
     "systemSettings": "System settings"
   },
+  "site": {
+    "title": "Site overview",
+    "subtitle": "{{name}} · this site",
+    "todayBet": "Today's bets",
+    "todayProfit": "Today's P/L",
+    "sevenDayTitle": "Last 7 days",
+    "sevenDayProfit": "7-day P/L",
+    "profitScopeHint": "Site scope: bets minus payouts",
+    "activePlayersToday": "Active players today",
+    "betOrdersTodayHint": "{{count}} orders today",
+    "pendingBills": "Pending bills",
+    "pendingUnpaid": "Unpaid {{amount}}",
+    "latestBetAt": "Latest bet {{time}}",
+    "noBetToday": "No bets yet today",
+    "scaleTitle": "Site scale",
+    "agentCount": "Agent nodes",
+    "playerCount": "Players",
+    "topAgentToday": "Top agent today: {{name}} ({{amount}})",
+    "quickLinks": {
+      "tickets": "Tickets",
+      "players": "Players",
+      "reports": "Reports",
+      "agents": "Agents",
+      "bills": "Settlement"
+    }
+  },
   "agent": {
     "title": "Operations overview",
-    "subtitle": "Your line scope · {{name}}",
+    "subtitle": "{{name}} · your line",
     "heroEyebrow": "Today's line cockpit",
     "heroTitle": "{{name}} live operations",
     "creditTitle": "Credit limit",
@@ -176,6 +202,7 @@
     "teamPlayers": "Players in line",
     "activePlayersToday": "Active players today",
     "betOrdersToday": "Bet orders today",
+    "betOrdersTodayHint": "{{count}} orders today",
     "todayBet": "Today's bet",
     "todayPayout": "Today's payout",
     "todayProfit": "Today's profit",
@@ -202,6 +229,7 @@
     "yes": "Yes",
     "no": "No",
     "viewBills": "View bills",
+    "lineMeta": "Depth {{depth}} · child agents {{childAgent}} · players {{player}}",
     "viewLine": "Agent line",
     "quickLinks": {
       "tickets": "Tickets",