fix(deploy): 添加 admin-service 数据库 rwa_admin

- 在 init-databases.sh 中添加 rwa_admin 数据库
- 在 migrate 函数中添加 admin-service

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

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

backend/services/deploy.sh

@@ -155,7 +155,7 @@ EOSQL
 }
 
 # Create all required databases
-for db in rwa_identity rwa_wallet rwa_mpc rwa_backup rwa_planting rwa_referral rwa_reward rwa_leaderboard rwa_reporting rwa_authorization rwa_presence; do
+for db in rwa_identity rwa_wallet rwa_mpc rwa_backup rwa_planting rwa_referral rwa_reward rwa_leaderboard rwa_reporting rwa_authorization rwa_admin rwa_presence; do
     create_database "$db"
 done
 
@@ -338,6 +338,7 @@ migrate() {
         "leaderboard-service"
         "reporting-service"
         "authorization-service"
+        "admin-service"
         "presence-service"
     )