feat: add in-app man pages browser

Add a native Man Pages section to the More tab with in-app browsing for
man.sr.ht documentation and srht.site pages.

- add ManPageService for fetching and extracting public docs content
- add ManPageBrowserView and ManPageDetailView
- add More tab navigation for Man Pages
- support in-place navigation for internal documentation links
- allow HTMLWebView to intercept internal links and use a base URL
- support man.sr.ht and srht.site content extraction
- remove heading permalink "#" anchors from man page rendering
- fix relative links, fragment links, and srht.site CTA/icon layout

3 files changed, 140 insertions, 1 deletions

diff --git a/Hutch/Views/More/ManPageBrowserView.swift b/Hutch/Views/More/ManPageBrowserView.swift
new file mode 100644
index 0000000..f854c79
--- /dev/null
+++ b/Hutch/Views/More/ManPageBrowserView.swift
@@ -0,0 +1,33 @@
+import SwiftUI
+
+/// Entry point for the man.sr.ht browser in the More tab.
+/// Shows a pre-populated list of official sr.ht man pages.
+struct ManPageBrowserView: View {
+    private let officialDocs: [(title: String, url: URL)] = [
+        ("sr.ht", URL(string: "https://man.sr.ht/sr.ht/")!),
+        ("hub.sr.ht", URL(string: "https://man.sr.ht/hub.sr.ht/")!),
+        ("git.sr.ht", URL(string: "https://man.sr.ht/git.sr.ht/")!),
+        ("hg.sr.ht", URL(string: "https://man.sr.ht/hg.sr.ht/")!),
+        ("lists.sr.ht", URL(string: "https://man.sr.ht/lists.sr.ht/")!),
+        ("todo.sr.ht", URL(string: "https://man.sr.ht/todo.sr.ht/")!),
+        ("builds.sr.ht", URL(string: "https://man.sr.ht/builds.sr.ht/")!),
+        ("paste.sr.ht", URL(string: "https://man.sr.ht/paste.sr.ht/")!),
+        ("man.sr.ht", URL(string: "https://man.sr.ht/man.sr.ht/")!),
+        ("meta.sr.ht", URL(string: "https://man.sr.ht/meta.sr.ht/")!),
+        ("srht.site", URL(string: "https://srht.site/")!)
+    ]
+
+    var body: some View {
+        List {
+            Section("Official Man Pages") {
+                ForEach(officialDocs, id: \.title) { doc in
+                    NavigationLink(value: MoreRoute.manPage(doc.url)) {
+                        Text(doc.title)
+                    }
+                }
+            }
+        }
+        .navigationTitle("Man Pages")
+        .navigationBarTitleDisplayMode(.inline)
+    }
+}
diff --git a/Hutch/Views/More/ManPageDetailView.swift b/Hutch/Views/More/ManPageDetailView.swift
new file mode 100644
index 0000000..96a92fb
--- /dev/null
+++ b/Hutch/Views/More/ManPageDetailView.swift
@@ -0,0 +1,103 @@
+import SwiftUI
+
+/// Fetches and renders a single man.sr.ht page.
+/// Internal man.sr.ht links update the current URL in-place rather than
+/// opening the browser, so the user can follow wiki links without leaving
+/// the view.
+struct ManPageDetailView: View {
+    let initialURL: URL
+
+    @Environment(\.colorScheme) private var colorScheme
+    @State private var currentURL: URL
+    @State private var page: ManPage?
+    @State private var isLoading = false
+    @State private var error: String?
+
+    init(url: URL) {
+        initialURL = url
+        _currentURL = State(initialValue: url)
+    }
+
+    var body: some View {
+        ScrollView {
+            if isLoading {
+                SRHTLoadingStateView(message: "Loading page…")
+                    .padding(.top, 40)
+            } else if let error {
+                SRHTErrorStateView(
+                    title: "Couldn't Load Page",
+                    message: error,
+                    retryAction: { await loadPage() }
+                )
+                .padding()
+            } else if let page {
+                HTMLWebView(
+                    html: page.contentHTML,
+                    colorScheme: colorScheme,
+                    style: .readme,
+                    baseURL: page.url,
+                    onInterceptURL: { url in
+                        guard let destinationURL = normalizedManPageURL(for: url) else {
+                            return false
+                        }
+                        currentURL = destinationURL
+                        return true
+                    }
+                )
+                .padding()
+            }
+        }
+        .navigationTitle(page?.title ?? "Documentation")
+        .navigationBarTitleDisplayMode(.inline)
+        .toolbar {
+            ToolbarItem(placement: .topBarTrailing) {
+                if let page {
+                    Link(destination: page.url) {
+                        Image(systemName: "safari")
+                    }
+                }
+            }
+        }
+        .task(id: currentURL) {
+            await loadPage()
+        }
+    }
+
+    private func loadPage() async {
+        isLoading = true
+        error = nil
+
+        do {
+            page = try await ManPageService.fetch(url: currentURL)
+        } catch {
+            self.error = error.localizedDescription
+        }
+
+        isLoading = false
+    }
+
+    private func normalizedManPageURL(for url: URL) -> URL? {
+        if ManPageService.isTrustedDocumentationURL(url) {
+            return url
+        }
+
+        guard let components = URLComponents(url: url, resolvingAgainstBaseURL: false),
+              let scheme = components.scheme?.lowercased(),
+              scheme == "about" || scheme == "file" else {
+            return nil
+        }
+
+        let rawPath = url.path.trimmingCharacters(in: CharacterSet(charactersIn: "/"))
+        guard !rawPath.isEmpty else {
+            if currentURL.host?.lowercased() == "srht.site" {
+                return ManPageService.pagesBaseURL
+            }
+            return ManPageService.baseURL
+        }
+
+        if currentURL.host?.lowercased() == "srht.site" {
+            return URL(string: "https://srht.site/\(rawPath)") ?? ManPageService.pagesBaseURL
+        }
+        return URL(string: "https://man.sr.ht/\(rawPath)/") ?? ManPageService.baseURL
+    }
+}
diff --git a/Hutch/Views/More/MoreView.swift b/Hutch/Views/More/MoreView.swift
index 9c5cf92..ae7228d 100644
--- a/Hutch/Views/More/MoreView.swift
+++ b/Hutch/Views/More/MoreView.swift
@@ -5,7 +5,6 @@ struct MoreView: View {
 
     private let unsupportedLinks: [(title: String, url: URL)] = [
         ("chat.sr.ht", URL(string: "https://chat.sr.ht")!),
-        ("man.sr.ht", URL(string: "https://man.sr.ht")!),
         ("srht.site", URL(string: "https://srht.site")!)
     ]
 
@@ -21,6 +20,10 @@ struct MoreView: View {
                 NavigationLink(value: MoreRoute.lists) {
                     Label("Mailing Lists", systemImage: "list.bullet.rectangle")
                 }
+                
+                NavigationLink(value: MoreRoute.manPageBrowser) {
+                    Label("Man Pages", systemImage: "book")
+                }
 
                 NavigationLink(value: MoreRoute.pastes) {
                     Label("Pastes", systemImage: "doc.on.clipboard")