Major PWA and mobile UI improvements

- Fixed PWA installation on Android by correcting manifest.json icon configuration
- Made UI mobile-friendly with compact layout and sticky record button
- Implemented auto-translation after transcription stops
- Updated branding from 'Voice Translator' to 'Talk2Me' throughout
- Added reverse proxy support with ProxyFix middleware
- Created diagnostic tools for PWA troubleshooting
- Added proper HTTP headers for service worker and manifest
- Improved mobile CSS with responsive design
- Fixed JavaScript bundling with webpack configuration
- Updated service worker cache versioning
- Added comprehensive PWA documentation

These changes ensure the app works properly as a PWA on Android devices
and provides a better mobile user experience.

static/js/src/app.ts

@@ -714,6 +714,21 @@ function initApp(): void {
                     language: data.detected_language || sourceLanguage.value,
                     timestamp: new Date().toISOString()
                 } as TranscriptionRecord);
+                
+                // Automatically trigger translation
+                setTimeout(async () => {
+                    statusIndicator.textContent = 'Automatically translating...';
+                    statusIndicator.classList.add('processing');
+                    try {
+                        await performTranslation();
+                    } catch (error) {
+                        console.error('Auto-translation failed:', error);
+                        statusIndicator.textContent = 'Transcription complete - Translation failed';
+                        statusIndicator.classList.remove('processing');
+                        statusIndicator.classList.add('warning');
+                        setTimeout(() => statusIndicator.classList.remove('warning'), 2000);
+                    }
+                }, 500); // Small delay for better UX
             } else {
                 sourceText.innerHTML = `<p class="text-danger fade-in">Error: ${data.error}</p>`;
                 statusIndicator.textContent = 'Transcription failed';
@@ -756,8 +771,8 @@ function initApp(): void {
         }
     );
 
-    // Translate button click event
-    translateBtn.addEventListener('click', errorBoundary.wrapAsync(async function() {
+    // Function to perform translation (extracted from button handler)
+    const performTranslation = async function(): Promise<void> {
         if (!currentSourceText) {
             return;
         }
@@ -794,7 +809,10 @@ function initApp(): void {
         }
 
         // No cache hit, proceed with API call
-        statusIndicator.textContent = 'Translating...';
+        // Don't update status if already showing 'Automatically translating...'
+        if (!statusIndicator.textContent?.includes('Automatically translating')) {
+            statusIndicator.textContent = 'Translating...';
+        }
         
         // Use streaming if enabled
         if (streamingEnabled && navigator.onLine) {
@@ -992,12 +1010,19 @@ function initApp(): void {
                 statusIndicator.textContent = 'Translation failed';
             }
         }
-    }, 'translation', async () => {
-        hideProgress();
-        hideLoadingOverlay();
-        translatedText.innerHTML = '<p class="text-danger">Translation failed. Please try again.</p>';
-        statusIndicator.textContent = 'Translation error - please retry';
-    }));
+    };
+
+    // Translate button click event (now just calls performTranslation)
+    translateBtn.addEventListener('click', errorBoundary.wrapAsync(
+        performTranslation,
+        'translation',
+        async () => {
+            hideProgress();
+            hideLoadingOverlay();
+            translatedText.innerHTML = '<p class="text-danger">Translation failed. Please try again.</p>';
+            statusIndicator.textContent = 'Translation error - please retry';
+        }
+    ));
 
     // Play source text
     playSource.addEventListener('click', function() {
@@ -1398,7 +1423,7 @@ function initInstallPrompt(): void {
     const installButton = document.createElement('button');
     installButton.style.display = 'none';
     installButton.classList.add('btn', 'btn-success', 'fixed-bottom', 'm-3');
-    installButton.innerHTML = 'Install Voice Translator <i class="fas fa-download ml-2"></i>';
+    installButton.innerHTML = 'Install Talk2Me <i class="fas fa-download ml-2"></i>';
     document.body.appendChild(installButton);
 
     window.addEventListener('beforeinstallprompt', (e: Event) => {