Refactor HTTP function editor with Mithril components and new API endpoints

- Add new Mithril components for editor (editor.js), response view (responseView.js), and alerts (alert.js)
- Create new API endpoints for creating, updating, and deleting HTTP functions
- Update templates to use new Mithril editor component
- Improve header navigation with more consistent styling and active state indicators
- Remove old edit form route and template
- Add new dedicated editor route and template

cursor.ai

templates/dashboard/http_functions/client.html

@@ -2,9 +2,14 @@
 
 {% block page %}
 
-{{ render_partial('dashboard/http_functions/header.html', title='Try', user_id=user_id, function_id=function_id,
-name=name,
-show_refresh=False, show_link=False, show_edit_form=True, show_client=True, show_logs=True, show_history=True) }}
+{{ render_partial('dashboard/http_functions/header.html', user_id=user_id, function_id=function_id,
+active_tab='client',
+show_edit_form=True,
+show_logs=True,
+show_client=True,
+show_history=True,
+edit_url=url_for('http_function_editor', function_id=function_id),
+cancel_url=url_for('dashboard_http_functions')) }}
 
 <div class="mx-auto w-full pt-4" id="client-u{{ user_id }}-f{{ function_id }}">
 </div>