env: Coolify本番ドメインをデフォルトに設定

- API公開URLを https://api.altdock.app.amania.jp に
- WEB_ORIGIN(ダッシュボード)を https://altdock.app.amania.jp に
- 管理画面のNEXT_PUBLIC_API_BASE_URLもAPIドメインに追従
- ローカル開発時は .env で localhost に上書き可能

.env.example

@@ -1,7 +1,11 @@
 NODE_ENV=development
 PORT=4000
-PUBLIC_BASE_URL=http://localhost:4000
-WEB_ORIGIN=http://localhost:3001
+# Public URLs (production defaults for Coolify).
+# Local development: use http://localhost:4000 / http://localhost:3001 /
+# http://localhost:4000 instead.
+PUBLIC_BASE_URL=https://api.altdock.app.amania.jp
+WEB_ORIGIN=https://altdock.app.amania.jp
+NEXT_PUBLIC_API_BASE_URL=https://api.altdock.app.amania.jp
 NEXT_PUBLIC_AUTH_MODE=demo
 # Vite dev server Host allow-list (comma-separated, or * for any host).
 # On Coolify set this to your public domain, e.g. altdock.app.amania.jp