api: フロントエンドのAPI URLを本番ドメインにハードコード

シングルユーザー運用のため env フォールバックを廃止し、
APIオリジンを https://api.altdock.app.amania.jp に固定した。
- dashboard.ts / PublicSourceView.tsx の localhost:4000 フォールバックを削除
- API側 config.ts の PUBLIC_BASE_URL/WEB_ORIGIN デフォルトも本番ドメインに
- compose/web の NEXT_PUBLIC_API_BASE_URL 環境変数を削除（コード固定のため）

app/lib/dashboard.ts

@@ -31,7 +31,9 @@ export type Notice = {
 
 export type Visibility = SourceRecord["visibility"];
 
-export const API_BASE = process.env.NEXT_PUBLIC_API_BASE_URL || "http://localhost:4000";
+// Single-user deployment: hard-code the public API origin. The API is served
+// at api.altdock.app.amania.jp; there is no per-environment fallback anymore.
+export const API_BASE = "https://api.altdock.app.amania.jp";
 export const AUTH_MODE = process.env.NEXT_PUBLIC_AUTH_MODE || "demo";
 export const DEMO_HEADERS = { "x-demo-user": "demo@altdock.local" };
 
@@ -102,4 +104,3 @@ export function flattenApps(dashboard: DashboardData) {
 export function flattenReleases(dashboard: DashboardData) {
   return dashboard.sources.flatMap((entry) => entry.releases.map((release) => ({ release, source: entry.source, app: entry.apps.find((app) => app.id === release.appId) })));
 }
-

app/sources/[slug]/PublicSourceView.tsx

@@ -12,7 +12,8 @@ type SourceDocument = {
   apps: Array<{ name: string; bundleIdentifier: string; developerName: string; subtitle?: string; localizedDescription: string; iconURL?: string; category: string; versions: Array<{ version: string; buildVersion: string; date: string; downloadURL: string; size: number }> }>;
 };
 
-const API_BASE = process.env.NEXT_PUBLIC_API_BASE_URL || "http://localhost:4000";
+// Single-user deployment: hard-code the public API origin.
+const API_BASE = "https://api.altdock.app.amania.jp";
 
 function formatBytes(value: number) {
   if (!value) return "0 B";