Android: tap orb to dismiss talk mode with haptic feedback

Makes the talk orb tappable to disable voice mode - much easier to hit
than the small button. Includes haptic feedback on tap.

apps/android/app/src/main/java/com/clawdbot/android/ui/RootScreen.kt

@@ -271,6 +271,7 @@ fun RootScreen(viewModel: MainViewModel) {
         statusText = talkStatusText,
         isListening = talkIsListening,
         isSpeaking = talkIsSpeaking,
+        onDismiss = { viewModel.setTalkEnabled(false) },
       )
     }
   }

apps/android/app/src/main/java/com/clawdbot/android/ui/TalkOrbOverlay.kt

@@ -7,6 +7,8 @@ import androidx.compose.animation.core.infiniteRepeatable
 import androidx.compose.animation.core.rememberInfiniteTransition
 import androidx.compose.animation.core.tween
 import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -18,11 +20,14 @@ import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Brush
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.drawscope.Stroke
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 
@@ -33,7 +38,9 @@ fun TalkOrbOverlay(
   isListening: Boolean,
   isSpeaking: Boolean,
   modifier: Modifier = Modifier,
+  onDismiss: (() -> Unit)? = null,
 ) {
+  val haptic = LocalHapticFeedback.current
   val transition = rememberInfiniteTransition(label = "talk-orb")
   val t by
     transition.animateFloat(
@@ -62,7 +69,19 @@ fun TalkOrbOverlay(
     verticalArrangement = Arrangement.spacedBy(12.dp),
   ) {
     Box(contentAlignment = Alignment.Center) {
-      Canvas(modifier = Modifier.size(360.dp)) {
+      Canvas(
+        modifier = Modifier
+          .size(360.dp)
+          .clickable(
+            interactionSource = remember { MutableInteractionSource() },
+            indication = null, // No ripple - the orb itself is the feedback
+            enabled = onDismiss != null,
+            onClick = {
+              haptic.performHapticFeedback(HapticFeedbackType.LongPress)
+              onDismiss?.invoke()
+            }
+          )
+      ) {
         val center = this.center
         val baseRadius = size.minDimension * 0.30f