Initial open-source release (MIT): image2api AI gateway

Full Go backend + Vue 3 frontend, OpenAI-compatible API, multi-provider
account pools, billing/admin, Docker one-command deploy with auto HTTPS.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/api.js

@@ -0,0 +1,53 @@
+// Thin fetch wrapper mirroring the old admin.html `API()` helper.
+// In dev, requests use relative paths and are proxied by Vite to the backend.
+// For a separately-hosted frontend, set VITE_API_BASE (e.g. http://host:6060).
+import { auth, clearSession } from './auth'
+
+const BASE = import.meta.env.VITE_API_BASE || ''
+
+/** Call an /admin/api endpoint. Returns { ok, status, data }. Automatically
+ *  attaches the bearer token and clears the session on a 401 so admin pages
+ *  fall back to the login screen via the router guard. */
+export async function api(path, opts = {}) {
+  const headers = { ...(opts.headers || {}) }
+  if (auth.token) headers.Authorization = `Bearer ${auth.token}`
+  const r = await fetch(`${BASE}/admin/api${path}`, { ...opts, headers })
+  let data = null
+  try {
+    data = await r.json()
+  } catch {
+    data = null
+  }
+  // A 401 only means "log out" when it's the *caller's* session that's invalid.
+  // Business/upstream failures (a dead provider account, etc.) must NOT clear
+  // the session — they used to surface as 401 and kick the user out mid-action.
+  // The backend now flags genuine session expiry with detail "未登录或会话已过期";
+  // treat only those (or a token-less 401) as a real logout signal.
+  if (r.status === 401) {
+    const detail = data?.detail || ''
+    if (!auth.token || detail.includes('未登录') || detail.includes('会话')) {
+      clearSession()
+    }
+  }
+  return { ok: r.ok, status: r.status, data }
+}
+
+/** Shorthand for a JSON POST/PATCH body. */
+export function jsonBody(method, payload) {
+  return {
+    method,
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(payload),
+  }
+}
+
+/** Health check hitting the plain /health endpoint. */
+export async function fetchHealth() {
+  const r = await fetch(`${BASE}/health`)
+  return r.json()
+}
+
+/** Absolute URL for a generated artifact (works in dev via proxy too). */
+export function generatedUrl(name) {
+  return `${BASE}/images/${name}`
+}