fix(ios): add AppIcon asset catalog and fix launch screen for TestFlight

Adds Assets.xcassets with a placeholder 1024x1024 AppIcon so Xcode
compiles CFBundleIconName and the required icon sizes into the bundle.
Replaces UILaunchStoryboardName (missing storyboard) with UILaunchScreen
dict, valid for iOS 14+ (min target is iOS 18). Fixes all four App Store
Connect validation errors blocking TestFlight upload.

clients/apple/iOS/VoiceCatiOS.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		AAAA00000000000000000002 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = AAAA00000000000000000001 /* Assets.xcassets */; };
 		BBBB00000000000000000030 /* VoiceCatiOSApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = BBBB00000000000000000017 /* VoiceCatiOSApp.swift */; };
 		BBBB00000000000000000031 /* AppState.swift in Sources */ = {isa = PBXBuildFile; fileRef = BBBB00000000000000000018 /* AppState.swift */; };
 		BBBB00000000000000000032 /* SessionState.swift in Sources */ = {isa = PBXBuildFile; fileRef = BBBB00000000000000000019 /* SessionState.swift */; };
@@ -61,6 +62,7 @@
 /* End PBXTargetDependency section */
 
 /* Begin PBXFileReference section */
+		AAAA00000000000000000001 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		BBBB00000000000000000012 /* VoiceCatiOS.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = VoiceCatiOS.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		BBBB00000000000000000015 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		BBBB00000000000000000016 /* VoiceCatiOS.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = VoiceCatiOS.entitlements; sourceTree = "<group>"; };
@@ -138,6 +140,7 @@
 		BBBB00000000000000000003 /* VoiceCatiOS */ = {
 			isa = PBXGroup;
 			children = (
+				AAAA00000000000000000001 /* Assets.xcassets */,
 				BBBB00000000000000000015 /* Info.plist */,
 				BBBB00000000000000000016 /* VoiceCatiOS.entitlements */,
 				BBBB00000000000000000017 /* VoiceCatiOSApp.swift */,
@@ -284,6 +287,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				AAAA00000000000000000002 /* Assets.xcassets in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

clients/apple/iOS/VoiceCatiOS/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,14 @@
+{
+  "images" : [
+    {
+      "filename" : "AppIcon-1024.png",
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

clients/apple/iOS/VoiceCatiOS/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

clients/apple/iOS/VoiceCatiOS/Info.plist

@@ -26,8 +26,8 @@
 	<array>
 		<string>audio</string>
 	</array>
-	<key>UILaunchStoryboardName</key>
+	<key>UILaunchScreen</key>
-	<string>LaunchScreen</string>
+	<dict/>
 	<key>UIRequiresFullScreen</key>
 	<false/>
 	<key>UISupportedInterfaceOrientations</key>