Android: brighter menu, always-visible orb, camera & file upload

1. Menu now brighter (0xFF3A3A4A) for better contrast
2. Orb on main page always visible (static when off, pulsing when on)
3. Implemented camera capture (saves to MediaStore, loads as attachment)
4. Implemented file picker (any file type)
5. Attachment type auto-detected (image vs file) based on MIME

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

@@ -267,18 +267,16 @@ fun RootScreen(viewModel: MainViewModel) {
     }
   }
 
-  // PTT orb overlay (only show when talk mode is active, for visual feedback)
-  if (talkEnabled) {
-    Popup(alignment = Alignment.Center, properties = PopupProperties(focusable = false)) {
-      TalkOrbOverlay(
-        seamColor = seamColor,
-        statusText = talkStatusText,
-        isListening = talkIsListening,
-        isSpeaking = talkIsSpeaking,
-        isActive = true,
-        onTap = { viewModel.setTalkEnabled(false) },
-      )
-    }
+  // PTT orb overlay - always visible, static when off, pulsing when active
+  Popup(alignment = Alignment.Center, properties = PopupProperties(focusable = false)) {
+    TalkOrbOverlay(
+      seamColor = seamColor,
+      statusText = talkStatusText,
+      isListening = talkIsListening,
+      isSpeaking = talkIsSpeaking,
+      isActive = talkEnabled,
+      onTap = { viewModel.setTalkEnabled(!talkEnabled) },
+    )
   }
 
   val currentSheet = sheet

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

@@ -147,7 +147,7 @@ fun ChatComposer(
           DropdownMenu(
             expanded = showMenu,
             onDismissRequest = { showMenu = false },
-            modifier = Modifier.background(Color(0xFF1E1E2E)), // Darker shade
+            modifier = Modifier.background(Color(0xFF3A3A4A)), // Brighter shade for contrast
           ) {
             // Attachment buttons row: Camera | Photos | Files
             Row(
@@ -187,7 +187,7 @@ fun ChatComposer(
             
             HorizontalDivider(
               modifier = Modifier.padding(vertical = 8.dp),
-              color = Color.White.copy(alpha = 0.1f),
+              color = Color.White.copy(alpha = 0.15f),
             )
             
             // Session selector
@@ -197,8 +197,8 @@ fun ChatComposer(
                 showMenu = false
                 showSessionMenu = true 
               },
-              leadingIcon = { Icon(Icons.Default.Settings, contentDescription = null, tint = Color.White.copy(alpha = 0.7f)) },
-              trailingIcon = { Text(currentSessionLabel, color = Color.White.copy(alpha = 0.5f), style = MaterialTheme.typography.bodySmall) },
+              leadingIcon = { Icon(Icons.Default.Settings, contentDescription = null, tint = Color.White.copy(alpha = 0.8f)) },
+              trailingIcon = { Text(currentSessionLabel, color = Color.White.copy(alpha = 0.6f), style = MaterialTheme.typography.bodySmall) },
             )
             
             // Thinking level
@@ -211,12 +211,12 @@ fun ChatComposer(
               leadingIcon = { 
                 Text("🧠", style = MaterialTheme.typography.bodyLarge) 
               },
-              trailingIcon = { Text(thinkingLabel(thinkingLevel), color = Color.White.copy(alpha = 0.5f), style = MaterialTheme.typography.bodySmall) },
+              trailingIcon = { Text(thinkingLabel(thinkingLevel), color = Color.White.copy(alpha = 0.6f), style = MaterialTheme.typography.bodySmall) },
             )
             
             HorizontalDivider(
               modifier = Modifier.padding(vertical = 8.dp),
-              color = Color.White.copy(alpha = 0.1f),
+              color = Color.White.copy(alpha = 0.15f),
             )
             
             // Refresh
@@ -226,7 +226,7 @@ fun ChatComposer(
                 showMenu = false
                 onRefresh() 
               },
-              leadingIcon = { Icon(Icons.Default.Refresh, contentDescription = null, tint = Color.White.copy(alpha = 0.7f)) },
+              leadingIcon = { Icon(Icons.Default.Refresh, contentDescription = null, tint = Color.White.copy(alpha = 0.8f)) },
             )
           }
         }
@@ -346,7 +346,7 @@ private fun AttachmentButton(
     onClick = onClick,
     modifier = modifier.height(80.dp),
     shape = RoundedCornerShape(12.dp),
-    color = Color(0xFF2A2A3E),
+    color = Color(0xFF4A4A5A),
   ) {
     Column(
       modifier = Modifier.padding(12.dp),

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

@@ -1,7 +1,10 @@
 package com.clawdbot.android.ui.chat
 
 import android.content.ContentResolver
+import android.content.ContentValues
 import android.net.Uri
+import android.os.Build
+import android.provider.MediaStore
 import android.util.Base64
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
@@ -14,8 +17,10 @@ import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
@@ -52,7 +57,9 @@ fun ChatSheetContent(viewModel: MainViewModel) {
   val scope = rememberCoroutineScope()
 
   val attachments = remember { mutableStateListOf<PendingImageAttachment>() }
+  var cameraImageUri by remember { mutableStateOf<Uri?>(null) }
 
+  // Image picker
   val pickImages =
     rememberLauncherForActivityResult(ActivityResultContracts.GetMultipleContents()) { uris ->
       if (uris.isNullOrEmpty()) return@rememberLauncherForActivityResult
@@ -60,7 +67,7 @@ fun ChatSheetContent(viewModel: MainViewModel) {
         val next =
           uris.take(8).mapNotNull { uri ->
             try {
-              loadImageAttachment(resolver, uri)
+              loadAttachment(resolver, uri)
             } catch (_: Throwable) {
               null
             }
@@ -71,6 +78,54 @@ fun ChatSheetContent(viewModel: MainViewModel) {
       }
     }
 
+  // File picker (any file type)
+  val pickFiles =
+    rememberLauncherForActivityResult(ActivityResultContracts.OpenMultipleDocuments()) { uris ->
+      if (uris.isNullOrEmpty()) return@rememberLauncherForActivityResult
+      scope.launch(Dispatchers.IO) {
+        val next =
+          uris.take(8).mapNotNull { uri ->
+            try {
+              loadAttachment(resolver, uri)
+            } catch (_: Throwable) {
+              null
+            }
+          }
+        withContext(Dispatchers.Main) {
+          attachments.addAll(next)
+        }
+      }
+    }
+
+  // Camera capture
+  val takePicture =
+    rememberLauncherForActivityResult(ActivityResultContracts.TakePicture()) { success ->
+      if (success && cameraImageUri != null) {
+        scope.launch(Dispatchers.IO) {
+          try {
+            val att = loadAttachment(resolver, cameraImageUri!!)
+            withContext(Dispatchers.Main) {
+              attachments.add(att)
+            }
+          } catch (_: Throwable) {
+            // Failed to load camera image
+          }
+        }
+      }
+    }
+
+  fun openCamera() {
+    val contentValues = ContentValues().apply {
+      put(MediaStore.Images.Media.DISPLAY_NAME, "camera_${System.currentTimeMillis()}.jpg")
+      put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg")
+    }
+    val uri = context.contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)
+    if (uri != null) {
+      cameraImageUri = uri
+      takePicture.launch(uri)
+    }
+  }
+
   Column(
     modifier =
       Modifier
@@ -97,9 +152,9 @@ fun ChatSheetContent(viewModel: MainViewModel) {
       attachments = attachments,
       seamColor = seamColor,
       talkEnabled = talkEnabled,
-      onOpenCamera = { /* TODO: Implement camera capture */ },
+      onOpenCamera = { openCamera() },
       onPickImages = { pickImages.launch("image/*") },
-      onPickFiles = { /* TODO: Implement file picker */ },
+      onPickFiles = { pickFiles.launch(arrayOf("*/*")) },
       onRemoveAttachment = { id -> attachments.removeAll { it.id == id } },
       onSetThinkingLevel = { level -> viewModel.setChatThinkingLevel(level) },
       onSelectSession = { key -> viewModel.switchChatSession(key) },
@@ -112,8 +167,12 @@ fun ChatSheetContent(viewModel: MainViewModel) {
       onSend = { text ->
         val outgoing =
           attachments.map { att ->
+            val type = when {
+              att.mimeType.startsWith("image/") -> "image"
+              else -> "file"
+            }
             OutgoingAttachment(
-              type = "image",
+              type = type,
               mimeType = att.mimeType,
               fileName = att.fileName,
               base64 = att.base64,
@@ -133,9 +192,9 @@ data class PendingImageAttachment(
   val base64: String,
 )
 
-private suspend fun loadImageAttachment(resolver: ContentResolver, uri: Uri): PendingImageAttachment {
-  val mimeType = resolver.getType(uri) ?: "image/*"
-  val fileName = (uri.lastPathSegment ?: "image").substringAfterLast('/')
+private suspend fun loadAttachment(resolver: ContentResolver, uri: Uri): PendingImageAttachment {
+  val mimeType = resolver.getType(uri) ?: "application/octet-stream"
+  val fileName = (uri.lastPathSegment ?: "file").substringAfterLast('/')
   val bytes =
     withContext(Dispatchers.IO) {
       resolver.openInputStream(uri)?.use { input ->