Consolidate search endpoints for better API organization

- Removed duplicate /api/search endpoint
- Kept /search as the main JSON API endpoint with proper documentation
- Added /search/form for web form submissions
- Updated HTML form to use /search/form endpoint
- Clear separation between API and web interface
- Media type enums still visible in /docs for API usage
- Maintains all functionality while reducing endpoint confusion

templates/index.html

@@ -16,7 +16,7 @@
                 </div>
                 {% endif %}
 
-                <form method="post" action="/search">
+                <form method="post" action="/search/form">
                     <div class="mb-3">
                         <label for="media_type" class="form-label">Media Type</label>
                         <select class="form-select" id="media_type" name="media_type" required>