chore: scaffold Voice iOS app (Phase 0)

XcodeGen project, SwiftUI iOS 17 target dev.shane.voice, SPM
livekit-client-swift 2.16.0, mic usage + ATS LAN exception in
Info.plist, placeholder conversation screen and Settings with
server URL field.

Voice.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

Voice.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -0,0 +1,42 @@
+{
+  "originHash" : "727398c0b292ba4052728cc638944a00ac7067321e283dedd2630f3e865fa408",
+  "pins" : [
+    {
+      "identity" : "client-sdk-swift",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/livekit/client-sdk-swift",
+      "state" : {
+        "revision" : "79fb2beee98e45556bffebefa50b5d05c3382af1",
+        "version" : "2.16.0"
+      }
+    },
+    {
+      "identity" : "livekit-uniffi-xcframework",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/livekit/livekit-uniffi-xcframework.git",
+      "state" : {
+        "revision" : "7c161254ce7cd55debc48023f69a917076b12a26",
+        "version" : "0.0.6"
+      }
+    },
+    {
+      "identity" : "swift-protobuf",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-protobuf.git",
+      "state" : {
+        "revision" : "55d7a1cc5666b85c13464aea1c4b4a90feccb4c8",
+        "version" : "1.38.1"
+      }
+    },
+    {
+      "identity" : "webrtc-xcframework",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/livekit/webrtc-xcframework.git",
+      "state" : {
+        "revision" : "46f2af86f06b9a8a9158d37cadda5cb5a214e4c4",
+        "version" : "144.7559.11"
+      }
+    }
+  ],
+  "version" : 3
+}