Update project structure and enhance frontend functionality

- Added a new AGENTS.md file to document the project structure and conventions.
- Updated .gitignore to include node_modules and refined cursor rules.
- Introduced new backend and frontend components for improved map interactions, including context menus and controls.
- Enhanced API composables for better admin and authentication functionalities.
- Refactored existing components for cleaner code and improved user experience.
- Updated README.md to clarify production asset serving and user setup instructions.

frontend-nuxt/components/map/MapCoordSetModal.vue

@@ -0,0 +1,61 @@
+<template>
+  <dialog ref="modalRef" class="modal" @cancel="$emit('close')">
+    <div class="modal-box transition-all duration-200" @click.stop>
+      <h3 class="font-bold text-lg">Rewrite tile coords</h3>
+      <p class="py-2">From ({{ coordSetFrom.x }}, {{ coordSetFrom.y }}) to:</p>
+      <div class="flex gap-2">
+        <input v-model.number="localTo.x" type="number" class="input input-bordered flex-1" placeholder="X" />
+        <input v-model.number="localTo.y" type="number" class="input input-bordered flex-1" placeholder="Y" />
+      </div>
+      <div class="modal-action">
+        <form method="dialog" @submit.prevent="onSubmit">
+          <button type="submit" class="btn btn-primary">Submit</button>
+          <button type="button" class="btn" @click="$emit('close')">Cancel</button>
+        </form>
+      </div>
+    </div>
+    <div class="modal-backdrop cursor-pointer" aria-label="Close" @click="$emit('close')" />
+  </dialog>
+</template>
+
+<script setup lang="ts">
+const props = defineProps<{
+  coordSetFrom: { x: number; y: number }
+  coordSet: { x: number; y: number }
+  open: boolean
+}>()
+
+const emit = defineEmits<{
+  close: []
+  submit: [from: { x: number; y: number }; to: { x: number; y: number }]
+}>()
+
+const modalRef = ref<HTMLDialogElement | null>(null)
+const localTo = ref({ x: props.coordSet.x, y: props.coordSet.y })
+
+watch(
+  () => props.open,
+  (open) => {
+    if (open) {
+      localTo.value = { x: props.coordSet.x, y: props.coordSet.y }
+      nextTick(() => modalRef.value?.showModal())
+    } else {
+      modalRef.value?.close()
+    }
+  },
+  { immediate: true }
+)
+
+watch(
+  () => props.coordSet,
+  (c) => {
+    localTo.value = { x: c.x, y: c.y }
+  },
+  { deep: true }
+)
+
+function onSubmit() {
+  emit('submit', props.coordSetFrom, localTo.value)
+  emit('close')
+}
+</script>