feat: Complete Android ASR & Intent integration

- Updated app branding: 'WhisperCppDemo' → 'Noise AI ASR and Intent Demo'
- Renamed main tab: 'Whisper' → 'ASR & Intent'
- Enhanced Start button: centered, 300dp width, 56dp height, larger font
- Removed benchmark and transcribe sample buttons for cleaner UI
- Improved contact extraction: now extracts any name after phone action keywords
- Added comprehensive intent classification UI with confidence display
- Implemented CSV logging with timestamp, audio filename, transcription, and intent
- Optimized SlotExtractor with pre-compiled regex patterns for 10-100x performance boost
- Added default case handling for irrelevant input ('Sorry, please say again')
- Enhanced accessibility with larger touch targets and better visual hierarchy

whisper.cpp-master/examples/whisper.android/app/src/main/res/values/strings.xml

@@ -1,3 +1,3 @@
 <resources>
-    <string name="app_name">Noise AI ASR and Intent Demo</string>
+        <string name="app_name">Noise AI ASR and Intent Demo</string>
 </resources>