lots of progress on input processing

app/routes.py

@@ -0,0 +1,58 @@
+from flask import Blueprint, render_template, request
+from app import db
+from app.models import Folder, User
+import uuid
+
+main = Blueprint('main', __name__)
+
+# For prototype, use a fixed user ID
+MOCK_USER_ID = '123e4567-e89b-12d3-a456-426614174000'
+
+@main.route('/')
+def index():
+    # Ensure the mock user exists
+    user = User.query.get(MOCK_USER_ID)
+    if not user:
+        user = User(id=MOCK_USER_ID, email='prototype@example.com')
+        db.session.add(user)
+        db.session.commit()
+    
+    folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
+    return render_template('index.html', folders=folders)
+
+@main.route('/api/folders', methods=['POST'])
+def add_folder():
+    try:
+        # Get form data instead of JSON
+        name = request.form.get('name')
+        rule_text = request.form.get('rule_text')
+        priority = request.form.get('priority')
+        
+        if not name:
+            # Return the folders list unchanged with an error message
+            folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
+            # We'll add error handling in the template
+            return render_template('partials/folders_list.html', folders=folders)
+            
+        # Create new folder
+        folder = Folder(
+            user_id=MOCK_USER_ID,
+            name=name,
+            rule_text=rule_text,
+            priority=int(priority) if priority else None
+        )
+        
+        db.session.add(folder)
+        db.session.commit()
+        
+        # Get updated list of folders
+        folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
+        
+        # Return the updated folders list HTML
+        return render_template('partials/folders_list.html', folders=folders)
+        
+    except Exception as e:
+        db.session.rollback()
+        # Return the folders list unchanged
+        folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
+        return render_template('partials/folders_list.html', folders=folders)