fix(apple/iOS): touch-first control sizing — toolbar circles + large sheet buttons

The iOS chrome inherited macOS dialog sizing and read as undersized on a phone:

- Toolbar: the two trailing actions shared one compact glass pill; on iOS 26+ each now
  gets its own full-size circle (explicit .topBarTrailing placements split by a fixed
  ToolbarSpacer — the system-app look, e.g. Files), with the grouped-pill fallback on
  iOS 17–18. The buttons are extracted so macOS keeps SettingsLink + .help untouched.
- Sheets and CTAs (AddHostSheet, PairSheet, trust card, empty-state Add Host) get
  .controlSize(.large) on iOS — proper touch targets instead of macOS dialog buttons.

Verified in the iPhone 17 simulator: two ~44 pt glass circles matching the Files app's
toolbar sizing; macOS suite and app build unchanged.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

clients/apple/Punktfunk.xcodeproj/project.pbxproj

@@ -299,10 +299,12 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = punktfunk_Logo;
 				CODE_SIGN_IDENTITY = "-";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
 				DEAD_CODE_STRIPPING = YES;
+				DEVELOPMENT_TEAM = F4H37KF6WC;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunkempfänger";
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
@@ -317,6 +319,8 @@
 				MARKETING_VERSION = 0.1;
 				PRODUCT_BUNDLE_IDENTIFIER = io.unom.punktfunk;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SUPPORTED_PLATFORMS = macosx;
+				SUPPORTS_MACCATALYST = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
 			};
@@ -327,10 +331,12 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = punktfunk_Logo;
 				CODE_SIGN_IDENTITY = "-";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
 				DEAD_CODE_STRIPPING = YES;
+				DEVELOPMENT_TEAM = F4H37KF6WC;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunkempfänger";
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
@@ -345,17 +351,20 @@
 				MARKETING_VERSION = 0.1;
 				PRODUCT_BUNDLE_IDENTIFIER = io.unom.punktfunk;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SUPPORTED_PLATFORMS = macosx;
+				SUPPORTS_MACCATALYST = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
-			BB0000000000000000000012 /* Debug */ = {
+		BB0000000000000000000012 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = punktfunk_Logo;
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = F4H37KF6WC;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunkempfänger";
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
@@ -377,6 +386,8 @@
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
 				SUPPORTS_MACCATALYST = NO;
+				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
+				SUPPORTS_XR_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -389,6 +400,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = punktfunk_Logo;
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = F4H37KF6WC;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunkempfänger";
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
@@ -410,6 +422,8 @@
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
 				SUPPORTS_MACCATALYST = NO;
+				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
+				SUPPORTS_XR_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -419,15 +433,6 @@
 /* End XCBuildConfiguration section */
 
 /* Begin XCConfigurationList section */
-		BB000000000000000000000A /* Build configuration list for PBXNativeTarget "Punktfunk-iOS" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				BB0000000000000000000012 /* Debug */,
-				BB0000000000000000000013 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
 		AA000000000000000000000A /* Build configuration list for PBXNativeTarget "Punktfunk" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
@@ -446,6 +451,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		BB000000000000000000000A /* Build configuration list for PBXNativeTarget "Punktfunk-iOS" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				BB0000000000000000000012 /* Debug */,
+				BB0000000000000000000013 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 /* End XCConfigurationList section */
 
 /* Begin XCLocalSwiftPackageReference section */

clients/apple/Sources/PunktfunkClient/AddHostSheet.swift

@@ -34,6 +34,9 @@ struct AddHostSheet: View {
                 .keyboardShortcut(.defaultAction)
                 .disabled(address.trimmingCharacters(in: .whitespaces).isEmpty)
             }
+            #if os(iOS)
+            .controlSize(.large)
+            #endif
             .padding(16)
         }
         #if os(macOS)

clients/apple/Sources/PunktfunkClient/ContentView.swift

@@ -104,28 +104,29 @@ struct ContentView: View {
             }
             .navigationTitle("punktfunk")
             .toolbar {
+                #if os(iOS)
+                // Each action gets its own full-size glass circle (system-app style)
+                // instead of sharing one compact pill.
+                if #available(iOS 26.0, *) {
+                    ToolbarItem(placement: .topBarTrailing) { settingsButton }
+                    ToolbarSpacer(.fixed, placement: .topBarTrailing)
+                    ToolbarItem(placement: .topBarTrailing) { addHostButton }
+                } else {
+                    ToolbarItem { settingsButton }
+                    ToolbarItem(placement: .primaryAction) { addHostButton }
+                }
+                #else
                 ToolbarItem(placement: .primaryAction) {
-                    Button {
+                    addHostButton
-                        showAddHost = true
+                        .help("Add a host")
-                    } label: {
-                        Label("Add Host", systemImage: "plus")
-                    }
-                    .help("Add a host")
                 }
                 ToolbarItem {
-                    #if os(macOS)
                     SettingsLink {
                         Label("Settings", systemImage: "gearshape")
                     }
                     .help("Stream mode and settings")
-                    #else
-                    Button {
-                        showSettings = true
-                    } label: {
-                        Label("Settings", systemImage: "gearshape")
-                    }
-                    #endif
                 }
+                #endif
             }
         }
         #if os(macOS)
@@ -158,6 +159,24 @@ struct ContentView: View {
         }
     }
 
+    private var addHostButton: some View {
+        Button {
+            showAddHost = true
+        } label: {
+            Label("Add Host", systemImage: "plus")
+        }
+    }
+
+    #if os(iOS)
+    private var settingsButton: some View {
+        Button {
+            showSettings = true
+        } label: {
+            Label("Settings", systemImage: "gearshape")
+        }
+    }
+    #endif
+
     private var emptyState: some View {
         ContentUnavailableView {
             Label("No Hosts", systemImage: "rectangle.connected.to.line.below")
@@ -166,6 +185,9 @@ struct ContentView: View {
         } actions: {
             Button("Add Host") { showAddHost = true }
                 .buttonStyle(.borderedProminent)
+                #if os(iOS)
+                .controlSize(.large)
+                #endif
         }
     }
 
@@ -260,6 +282,9 @@ struct ContentView: View {
                 .buttonStyle(.borderedProminent)
                 .keyboardShortcut(.defaultAction)
             }
+            #if os(iOS)
+            .controlSize(.large)
+            #endif
             // The verified alternative to eyeballing hex: drop this session (the host
             // serves one connection at a time) and run the SPAKE2 PIN ceremony instead.
             Button("Pair with PIN instead…") {

clients/apple/Sources/PunktfunkClient/PairSheet.swift

@@ -79,6 +79,9 @@ struct PairSheet: View {
                     .keyboardShortcut(.defaultAction)
                     .disabled(busy || pin.trimmingCharacters(in: .whitespaces).isEmpty)
             }
+            #if os(iOS)
+            .controlSize(.large)
+            #endif
             .padding(16)
         }
         #if os(macOS)