Implement authentication phase with Cidaas OAuth2 integration

- Add authentication middleware to protect routes
- Create API endpoints for login, logout, registration, and user info
- Develop UI components for login and registration forms
- Integrate VeeValidate for form validation
- Update environment configuration for Cidaas settings
- Add i18n support for English and German languages
- Enhance Tailwind CSS for improved styling of auth components
- Document authentication flow and testing procedures

app/components/ui/form/FormDescription.vue

@@ -0,0 +1,30 @@
+<script setup lang="ts">
+import type { HTMLAttributes } from 'vue'
+import { inject } from 'vue'
+import { cn } from '~/lib/utils'
+import type { FormItemContext } from '.'
+import { FORM_ITEM_INJECT_KEY } from '.'
+
+/**
+ * FormDescription component - Help text for form fields
+ * Provides additional context or instructions for the user
+ */
+
+interface Props {
+  class?: HTMLAttributes['class']
+}
+
+const props = defineProps<Props>()
+
+// Get the form item context for ID
+const formItemContext = inject<FormItemContext>(FORM_ITEM_INJECT_KEY)
+</script>
+
+<template>
+  <p
+    :id="`${formItemContext?.id}-description`"
+    :class="cn('text-sm text-muted-foreground', props.class)"
+  >
+    <slot />
+  </p>
+</template>