fix(apple/ios): split streamModeSection — the inline iOS branch blew the type-checker budget

The Section's iOS content (resolution wheel + 3-way refresh rows + bitrate
rows) as ONE ViewBuilder expression hit "the compiler is unable to type-check
this expression in reasonable time" — failing exactly one build slice, the iOS
archive, so swift test (macOS) and the tvOS/macOS archives never saw it and the
0.6.0 iOS TestFlight upload soft-failed. Extracted iosResolutionWheel /
iosRefreshRows / bitrateRows; no behavior change.

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

clients/apple/Sources/PunktfunkClient/Settings/SettingsView+Sections.swift

@@ -7,13 +7,49 @@ import SwiftUI
 extension SettingsView {
     // MARK: - Sections (shared)
 
+    // NOTE: the Section content is deliberately split into the small named builders below — as one
+    // inline expression the iOS branch (wheel + 3-way refresh + bitrate rows) blew Swift's
+    // type-checker budget ("unable to type-check this expression in reasonable time"), which
+    // failed exactly one slice: the iOS archive (macOS/tvOS never compile that branch).
     @ViewBuilder var streamModeSection: some View {
         Section {
             #if os(iOS)
-            // Touch-first: a rotating wheel of common resolutions (this device's own mode first) and
+            iosResolutionWheel
-            // a segmented refresh-rate control — the same family as the Clock/Timer pickers. The host
+            iosRefreshRows
-            // renders a virtual output at exactly the chosen mode, so these are real pixel sizes. The
+            Button("Use this display's mode") { fillFromMainScreen() }
-            // last wheel row, "Custom…", reveals width/height/refresh fields for an arbitrary mode.
+            #elseif os(macOS)
+            HStack {
+                TextField("Resolution", value: $width, format: .number.grouping(.never))
+                Text("×")
+                TextField("", value: $height, format: .number.grouping(.never))
+                    .labelsHidden()
+            }
+            TextField("Refresh rate (Hz)", value: $hz, format: .number.grouping(.never))
+            LabeledContent("") {
+                Button("Use this display's mode") { fillFromMainScreen() }
+            }
+            #endif
+            #if !os(tvOS)
+            bitrateRows
+            #endif
+        } header: {
+            Text("Stream mode")
+        } footer: {
+            Text("The host creates a virtual output at exactly this mode — "
+                + "native resolution, no scaling. \(Self.bitrateFooter)")
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    #if os(iOS)
+    // MARK: - Stream mode (iOS wheel)
+
+    /// Touch-first: a rotating wheel of common resolutions (this device's own mode first) — the
+    /// same family as the Clock/Timer pickers. The host renders a virtual output at exactly the
+    /// chosen mode, so these are real pixel sizes. The last wheel row, "Custom…", reveals
+    /// width/height/refresh fields for an arbitrary mode (see `iosRefreshRows`).
+    @ViewBuilder private var iosResolutionWheel: some View {
         VStack(alignment: .leading, spacing: 4) {
             Text("Resolution")
                 .font(.geist(15, relativeTo: .subheadline))
@@ -27,6 +63,10 @@ extension SettingsView {
             .pickerStyle(.wheel)
             .frame(maxHeight: 140)
         }
+    }
+
+    /// Custom W×H(+Hz) fields, a segmented refresh picker, or a static single-rate row.
+    @ViewBuilder private var iosRefreshRows: some View {
         if isCustomResolution {
             // Arbitrary entry: type the exact width × height (and refresh) the host should drive.
             HStack {
@@ -64,50 +104,7 @@ extension SettingsView {
                 Text("\(hz) Hz").foregroundStyle(.secondary)
             }
         }
-            Button("Use this display's mode") { fillFromMainScreen() }
-            #elseif os(macOS)
-            HStack {
-                TextField("Resolution", value: $width, format: .number.grouping(.never))
-                Text("×")
-                TextField("", value: $height, format: .number.grouping(.never))
-                    .labelsHidden()
     }
-            TextField("Refresh rate (Hz)", value: $hz, format: .number.grouping(.never))
-            LabeledContent("") {
-                Button("Use this display's mode") { fillFromMainScreen() }
-            }
-            #endif
-            #if !os(tvOS)
-            Toggle("Automatic bitrate", isOn: automaticBitrate)
-            if bitrateKbps != 0 {
-                HStack(spacing: 12) {
-                    Slider(value: bitrateSlider, in: 0...1) {
-                        Text("Bitrate")
-                    }
-                    Text(SpeedTestSheet.mbpsLabel(kbps: bitrateKbps))
-                        .monospacedDigit()
-                        .foregroundStyle(.secondary)
-                        .frame(minWidth: 76, alignment: .trailing)
-                }
-                if bitrateKbps > 1_000_000 {
-                    Label(Self.gigabitWarning, systemImage: "exclamationmark.triangle.fill")
-                        .font(.geist(12, relativeTo: .caption))
-                        .foregroundStyle(.orange)
-                }
-            }
-            #endif
-        } header: {
-            Text("Stream mode")
-        } footer: {
-            Text("The host creates a virtual output at exactly this mode — "
-                + "native resolution, no scaling. \(Self.bitrateFooter)")
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-    }
-
-    #if os(iOS)
-    // MARK: - Stream mode (iOS wheel)
 
     /// Sentinel wheel tag for the "Custom…" row. Real tags are "WxH" (digits + "x"), so this can't
     /// collide with a resolution.
@@ -156,6 +153,29 @@ extension SettingsView {
     }
     #endif
 
+    #if !os(tvOS)
+    /// The automatic-bitrate toggle + manual slider (and the >1 Gbps warning) rows.
+    @ViewBuilder private var bitrateRows: some View {
+        Toggle("Automatic bitrate", isOn: automaticBitrate)
+        if bitrateKbps != 0 {
+            HStack(spacing: 12) {
+                Slider(value: bitrateSlider, in: 0...1) {
+                    Text("Bitrate")
+                }
+                Text(SpeedTestSheet.mbpsLabel(kbps: bitrateKbps))
+                    .monospacedDigit()
+                    .foregroundStyle(.secondary)
+                    .frame(minWidth: 76, alignment: .trailing)
+            }
+            if bitrateKbps > 1_000_000 {
+                Label(Self.gigabitWarning, systemImage: "exclamationmark.triangle.fill")
+                    .font(.geist(12, relativeTo: .caption))
+                    .foregroundStyle(.orange)
+            }
+        }
+    }
+    #endif
+
     @ViewBuilder var audioSection: some View {
         Section {
             Picker("Audio channels", selection: $audioChannels) {