Restore vertical scroll + line-based markdown; swipe on bottom bar; bump to 3.3

The horizontal paging ScrollView squished the markdown text and the TabView
broke navigation. Revert to the plain vertical ScrollView + switch (always
rendered correctly). Swipe-to-change now lives on the bottom tab bar itself
(simultaneous DragGesture), so tapping tabs still works. Rewrite MarkdownText
line-based: each source line renders on its own line (AttributedString
collapses single newlines into spaces), with heading/bullet/code handling.
Bump to 3.3.

GiteaPR.xcodeproj/project.pbxproj

@@ -187,7 +187,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 23;
+				CURRENT_PROJECT_VERSION = 24;
 				DEVELOPMENT_TEAM = "";
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_CFBundleDisplayName = "GiteaPR";
@@ -197,7 +197,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 3.2;
+				MARKETING_VERSION = 3.3;
 				PRODUCT_BUNDLE_IDENTIFIER = com.bueso.giteapr;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_EMIT_LOC_STRINGS = YES;
@@ -211,7 +211,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 23;
+				CURRENT_PROJECT_VERSION = 24;
 				DEVELOPMENT_TEAM = "";
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_CFBundleDisplayName = "GiteaPR";
@@ -221,7 +221,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 3.2;
+				MARKETING_VERSION = 3.3;
 				PRODUCT_BUNDLE_IDENTIFIER = com.bueso.giteapr;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_EMIT_LOC_STRINGS = YES;

GiteaPR/Detail/PRDetailView.swift

@@ -103,32 +103,17 @@ struct PRDetailView: View {
         VStack(spacing: 0) {
             header(pr)
 
-            // Horizontal paging ScrollView — swipeable like a TabView, but
-            // without breaking NavigationLink inside the tabs (TabView's .page
-            // style swallows taps and interferes with nested navigation).
-            ScrollView(.horizontal, showsIndicators: false) {
-                HStack(spacing: 0) {
-                    OverviewTab(pr: pr)
-                        .id(DetailTab.overview)
-                        .containerRelativeFrame(.horizontal)
-
-                    ConversationTab(vm: vm)
-                        .id(DetailTab.conversation)
-                        .containerRelativeFrame(.horizontal)
-
-                    FilesTab(vm: vm)
-                        .id(DetailTab.files)
-                        .containerRelativeFrame(.horizontal)
-
-                    ChecksTab(vm: vm, onRerun: { showRerunConfirm = $0 })
-                        .id(DetailTab.checks)
-                        .containerRelativeFrame(.horizontal)
+            // Vertical scroll — has always rendered correctly (a horizontal
+            // ScrollView/TabView broke NavigationLink and mangled markdown).
+            ScrollView {
+                switch selectedTab {
+                case .overview: OverviewTab(pr: pr)
+                case .conversation: ConversationTab(vm: vm)
+                case .files: FilesTab(vm: vm)
+                case .checks: ChecksTab(vm: vm, onRerun: { showRerunConfirm = $0 })
+                case .none: OverviewTab(pr: pr)
                 }
-                .scrollTargetLayout()
             }
-            .scrollTargetBehavior(.paging)
-            .scrollPosition(id: $selectedTab)
-            .ignoresSafeArea(edges: .bottom)
 
             bottomTabBar
         }
@@ -204,6 +189,21 @@ struct PRDetailView: View {
         )
         .padding(.horizontal, 20)
         .padding(.bottom, 8)
+        // Swipe across the bar to change sections (iOS 26 feel). Taps on the
+        // individual tab buttons still work — simultaneous gesture.
+        .simultaneousGesture(
+            DragGesture(minimumDistance: 20)
+                .onEnded { value in
+                    let tabs = DetailTab.allCases
+                    guard let current = selectedTab ?? .overview,
+                          let idx = tabs.firstIndex(of: current) else { return }
+                    if value.translation.width < -40, idx < tabs.count - 1 {
+                        withAnimation { selectedTab = tabs[idx + 1] }
+                    } else if value.translation.width > 40, idx > 0 {
+                        withAnimation { selectedTab = tabs[idx - 1] }
+                    }
+                }
+        )
     }
 
     private var reviewMenu: some View {

GiteaPR/Detail/Tabs.swift

@@ -167,6 +167,11 @@ struct OverviewTab: View {
 
 /// A Text view that renders a markdown string, falling back to plain text if
 /// the markdown can't be parsed.
+///
+/// Line-based: each source line renders on its own line (AttributedString
+/// collapses single newlines into spaces, which squishes PR bodies that use
+/// one-line-per-key formatting). Handles headings, bullets, and code fences;
+/// inline formatting (bold, italic, links, inline code) via AttributedString.
 struct MarkdownText: View {
     let markdown: String
 
@@ -175,12 +180,55 @@ struct MarkdownText: View {
     }
 
     var body: some View {
-        if let attributed = try? AttributedString(markdown: markdown) {
+        VStack(alignment: .leading, spacing: 6) {
+            let lines = markdown.components(separatedBy: "\n")
+            var inCodeBlock = false
+            ForEach(Array(lines.enumerated()), id: \.offset) { _, line in
+                if line.hasPrefix("```") {
+                    inCodeBlock.toggle()
+                } else if inCodeBlock {
+                    Text(line)
+                        .font(.caption.monospaced())
+                        .frame(maxWidth: .infinity, alignment: .leading)
+                        .padding(4)
+                        .background(Color(.secondarySystemBackground))
+                } else if line.hasPrefix("# ") || line.hasPrefix("## ") || line.hasPrefix("### ") {
+                    heading(line)
+                } else if line.hasPrefix("- ") || line.hasPrefix("* ") {
+                    bullet(line)
+                } else if line.trimmingCharacters(in: .whitespaces).isEmpty {
+                    Spacer(minLength: 4)
+                } else {
+                    inline(line)
+                }
+            }
+        }
+        .frame(maxWidth: .infinity, alignment: .leading)
+    }
+
+    private func heading(_ line: String) -> some View {
+        let level = line.prefix(while: { $0 == "#" }).count
+        let text = line.dropFirst(level).trimmingCharacters(in: .whitespaces)
+        return Text(text)
+            .font(level == 1 ? .title2.bold() : level == 2 ? .title3.bold() : .headline)
+            .frame(maxWidth: .infinity, alignment: .leading)
+    }
+
+    private func bullet(_ line: String) -> some View {
+        HStack(alignment: .top, spacing: 6) {
+            Text("•")
+            inline(String(line.dropFirst(2)))
+        }
+        .frame(maxWidth: .infinity, alignment: .leading)
+    }
+
+    private func inline(_ text: String) -> some View {
+        if let attributed = try? AttributedString(markdown: text) {
             Text(attributed)
                 .font(.callout)
                 .frame(maxWidth: .infinity, alignment: .leading)
         } else {
-            Text(markdown)
+            Text(text)
                 .font(.callout)
                 .frame(maxWidth: .infinity, alignment: .leading)
         }