feat(gateway): add missing API routes to Kong configuration

Add routes for APIs that were implemented but missing from Kong:
- /api/v1/backup-share (backup-service)
- /api/v1/virtual-accounts (leaderboard-service)
- /api/v1/export (reporting-service)
- /api/v1/analytics (presence-service)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/api-gateway/kong.yml

@@ -78,6 +78,10 @@ services:
         paths:
           - /api/v1/backups
         strip_path: false
+      - name: backup-share-api
+        paths:
+          - /api/v1/backup-share
+        strip_path: false
 
   # ---------------------------------------------------------------------------
   # Planting Service - 种植服务
@@ -149,6 +153,10 @@ services:
         paths:
           - /api/v1/leaderboard
         strip_path: false
+      - name: leaderboard-virtual-accounts
+        paths:
+          - /api/v1/virtual-accounts
+        strip_path: false
 
   # ---------------------------------------------------------------------------
   # Reporting Service - 报表服务
@@ -161,6 +169,10 @@ services:
           - /api/v1/reports
           - /api/v1/statistics
         strip_path: false
+      - name: reporting-export
+        paths:
+          - /api/v1/export
+        strip_path: false
 
   # ---------------------------------------------------------------------------
   # Authorization Service - 授权服务
@@ -210,6 +222,10 @@ services:
         paths:
           - /api/v1/presence
         strip_path: false
+      - name: presence-analytics
+        paths:
+          - /api/v1/analytics
+        strip_path: false
 
   # ---------------------------------------------------------------------------
   # Blockchain Service - 区块链服务