Remove experimental Bluetooth key transfer module

- Deleted BluetoothKeyTransfer.js and related classes
- Removed BluetoothKeyTransfer.jsx UI component
- Cleaned up Bluetooth imports from app-boot.js and bootstrap-modules.js
- Removed Bluetooth buttons and handlers from main app
- Eliminated all Bluetooth functionality due to Web Bluetooth API limitations
- Browsers cannot create GATT servers or advertise devices
- Reduced bundle size by ~78KB
- Application now focuses on supported browser technologies (QR codes, manual key exchange, WebRTC)

dist/app.js

@@ -622,58 +622,6 @@ var EnhancedConnectionSetup = ({
             ])
           ])
         ]),
-        // Step 2 - Session Type Selection
-        // showOfferStep && React.createElement('div', {
-        //     key: 'step2',
-        //     className: "card-minimal rounded-xl p-6"
-        // }, [
-        //     React.createElement('div', {
-        //         key: 'step-header',
-        //         className: "flex items-center mb-4"
-        //     }, [
-        //         React.createElement('div', {
-        //             key: 'number',
-        //             className: "w-8 h-8 bg-green-500 text-white rounded-lg flex items-center justify-center font-semibold text-sm mr-3"
-        //         }, '2'),
-        //         React.createElement('h3', {
-        //             key: 'title',
-        //             className: "text-lg font-medium text-primary"
-        //         }, "Select session type")
-        //     ]),
-        //     React.createElement('p', {
-        //         key: 'description',
-        //         className: "text-secondary text-sm mb-4"
-        //     }, "Choose a session plan or use limited demo mode for testing."),
-        //     React.createElement(SessionTypeSelector, {
-        //         key: 'session-selector',
-        //         onSelectType: (sessionType) => {
-        //             // Save the selected session type
-        //             setSelectedSessionType(sessionType);
-        //             console.log('🎯 Session type selected:', sessionType);
-        //             // FIX: For demo sessions, we immediately call automatic activation
-        //             if (sessionType === 'demo') {
-        //                 console.log('🎮 Demo session selected, scheduling automatic activation...');
-        //                 // Delay activation for 2 seconds to stabilize
-        //                 setTimeout(() => {
-        //                     if (sessionManager) {
-        //                         console.log('🚀 Triggering demo session activation from selection...');
-        //                         handleDemoVerification();
-        //                     }
-        //                 }, 2000);
-        //             }
-        //             // Open a modal payment window
-        //             if (typeof window.showPaymentModal === 'function') {
-        //                 window.showPaymentModal(sessionType);
-        //             } else {
-        //                 // Fallback - show session information
-        //                 console.log('Selected session type:', sessionType);
-        //             }
-        //         },
-        //         onCancel: resetToSelect,
-        //         sessionManager: window.sessionManager
-        //     })
-        // ]),
-        // Step 3 - Waiting for response
         showOfferStep && React.createElement("div", {
           key: "step2",
           className: "card-minimal rounded-xl p-6"