feat: bootstrap temporserv project scaffold

Add the initial project blueprint, Go backend skeleton, frontend app shell, database schema draft, and local development/deployment files.

apps/web/src/lib/api.ts

@@ -0,0 +1,66 @@
+export type User = {
+  id: string
+  username: string
+  isAdmin: boolean
+}
+
+export type HomePayload = {
+  recentAlbums: Array<{
+    id: string
+    artistId: string
+    artistName: string
+    title: string
+    year: number
+    trackCount: number
+  }>
+  artists: Array<{
+    id: string
+    name: string
+    albumCount: number
+  }>
+}
+
+export type Track = {
+  id: string
+  albumId: string
+  artistId: string
+  title: string
+  artistName: string
+  albumTitle: string
+  trackNumber: number
+  durationSeconds: number
+}
+
+const API_BASE = import.meta.env.VITE_API_BASE ?? 'http://localhost:4040'
+
+async function request<T>(path: string, init?: RequestInit): Promise<T> {
+  const response = await fetch(`${API_BASE}${path}`, {
+    headers: {
+      'Content-Type': 'application/json',
+      ...(init?.headers ?? {}),
+    },
+    ...init,
+  })
+
+  if (!response.ok) {
+    throw new Error(`Request failed: ${response.status}`)
+  }
+
+  return response.json() as Promise<T>
+}
+
+export async function login(username: string, password: string) {
+  return request<{ token: string; user: User }>('/api/auth/login', {
+    method: 'POST',
+    body: JSON.stringify({ username, password }),
+  })
+}
+
+export async function fetchHome() {
+  return request<HomePayload>('/api/home')
+}
+
+export async function fetchTracks() {
+  return request<{ items: Track[] }>('/api/tracks')
+}
+