Add initial project structure with backend and frontend setup

- Created backend structure with Go, including main application logic and API endpoints.
- Added Docker support for both development and production environments.
- Introduced frontend using Nuxt 3 with Tailwind CSS for styling.
- Included configuration files for Docker and environment variables.
- Established basic documentation for contributing, development, and deployment processes.
- Set up .gitignore and .dockerignore files to manage ignored files in the repository.

frontend-nuxt/middleware/admin.ts

@@ -0,0 +1,11 @@
+export default defineNuxtRouteMiddleware(async () => {
+  const api = useMapApi()
+  try {
+    const me = await api.me()
+    if (!me.auths?.includes('admin')) {
+      return navigateTo('/profile')
+    }
+  } catch {
+    return navigateTo('/login')
+  }
+})

frontend-nuxt/middleware/auth.global.ts

@@ -0,0 +1,14 @@
+export default defineNuxtRouteMiddleware(async (to) => {
+  const { isLoginPath, isSetupPath } = useAppPaths()
+  if (isLoginPath(to.path)) return
+  if (isSetupPath(to.path)) return
+
+  const api = useMapApi()
+  try {
+    await api.me()
+  } catch {
+    const { setupRequired } = await api.setupRequired()
+    if (setupRequired) return navigateTo('/setup')
+    return navigateTo('/login')
+  }
+})