feat: add camera list and device selection

apps/shared/ClawdisKit/Sources/ClawdisKit/CameraCommands.swift

@@ -1,6 +1,7 @@
 import Foundation
 
 public enum ClawdisCameraCommand: String, Codable, Sendable {
+    case list = "camera.list"
     case snap = "camera.snap"
     case clip = "camera.clip"
 }
@@ -24,17 +25,23 @@ public struct ClawdisCameraSnapParams: Codable, Sendable, Equatable {
     public var maxWidth: Int?
     public var quality: Double?
     public var format: ClawdisCameraImageFormat?
+    public var deviceId: String?
+    public var delayMs: Int?
 
     public init(
         facing: ClawdisCameraFacing? = nil,
         maxWidth: Int? = nil,
         quality: Double? = nil,
-        format: ClawdisCameraImageFormat? = nil)
+        format: ClawdisCameraImageFormat? = nil,
+        deviceId: String? = nil,
+        delayMs: Int? = nil)
     {
         self.facing = facing
         self.maxWidth = maxWidth
         self.quality = quality
         self.format = format
+        self.deviceId = deviceId
+        self.delayMs = delayMs
     }
 }
 
@@ -43,16 +50,19 @@ public struct ClawdisCameraClipParams: Codable, Sendable, Equatable {
     public var durationMs: Int?
     public var includeAudio: Bool?
     public var format: ClawdisCameraVideoFormat?
+    public var deviceId: String?
 
     public init(
         facing: ClawdisCameraFacing? = nil,
         durationMs: Int? = nil,
         includeAudio: Bool? = nil,
-        format: ClawdisCameraVideoFormat? = nil)
+        format: ClawdisCameraVideoFormat? = nil,
+        deviceId: String? = nil)
     {
         self.facing = facing
         self.durationMs = durationMs
         self.includeAudio = includeAudio
         self.format = format
+        self.deviceId = deviceId
     }
 }