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/pages/login.vue

@@ -0,0 +1,56 @@
+<template>
+  <div class="min-h-screen flex flex-col items-center justify-center bg-base-200 p-4 overflow-hidden">
+    <div class="card w-full max-w-sm bg-base-100 shadow-xl">
+      <div class="card-body">
+        <h1 class="card-title justify-center">Log in</h1>
+        <form @submit.prevent="submit" class="flex flex-col gap-4">
+          <div class="form-control">
+            <label class="label" for="user">User</label>
+            <input
+              id="user"
+              v-model="user"
+              type="text"
+              class="input input-bordered"
+              required
+              autocomplete="username"
+            />
+          </div>
+          <PasswordInput
+            v-model="pass"
+            label="Password"
+            required
+            autocomplete="current-password"
+          />
+          <p v-if="error" class="text-error text-sm">{{ error }}</p>
+          <button type="submit" class="btn btn-primary" :disabled="loading">
+            {{ loading ? '…' : 'Log in' }}
+          </button>
+        </form>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+// No auth required; auth.global skips this path
+
+const user = ref('')
+const pass = ref('')
+const error = ref('')
+const loading = ref(false)
+const router = useRouter()
+const api = useMapApi()
+
+async function submit() {
+  error.value = ''
+  loading.value = true
+  try {
+    await api.login(user.value, pass.value)
+    await router.push('/profile')
+  } catch (e: unknown) {
+    error.value = e instanceof Error ? e.message : 'Login failed'
+  } finally {
+    loading.value = false
+  }
+}
+</script>