Add VO2 max metric support and fix identifier extraction for VO2

- Added VO2 max as new metric with comprehensive synonym support
- Added 23 synonyms including: vo2, vo2 max, aerobic capacity, cardio fitness, cardiovascular fitness, oxygen uptake, endurance capacity, fitness level
- Added vo2Regex pattern for context detection
- Updated extractUnit to return 'ml/kg/min' for VO2 context
- Added unit default 'ml/kg/min' in SetThreshold metric switch for both Kotlin and Swift
- Added 9 inference patterns for recognizing VO2-related queries
- Fixed extractIdentifier to skip 'maximum' pattern when VO2 context detected (prevents 'max' in 'vo2 max' from being interpreted as maximum identifier)
- Maintained platform parity between Android (Kotlin) and iOS (Swift)
- Updated TFLite model to 'Intent classifier 10-12-2025.tflite' in Android
- VO2 metric now fully functional in QueryPoint, SetGoal, and SetThreshold intents

Author: tanmaypawar-noise

examples/whisper.android/app/src/main/assets/Intent classifier 10-12-2025.tflite

@@ -82,7 +82,7 @@ class IntentClassifier(private val context: Context) {
     }
 
     private fun loadIntentClassifier() {
-        val model = loadModelFile("Intent_classifier 24-11-25.tflite")
+        val model = loadModelFile("Intent classifier 10-12-2025.tflite")
         intentClassifier = Interpreter(model)
 
         val inputDetails = intentClassifier!!.inputTensorCount