Skip launch-restore scroll on macOS 12 to avoid corrupted List offset

On macOS 12, scrolling a SwiftUI List that is still settling its initial
layout corrupts the scroll offset, leaving both the sidebar and article
list pushed down with empty space above after launch. Gate the
launch-time restore scrolls behind macOS 13 while keeping selection
restore and article loading intact; user-initiated scrolls are
unaffected on all versions.

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

Author: livid

Planet/Entities/PlanetStore.swift

@@ -815,12 +815,23 @@ final class MyJSONDirectoryMonitor {
             selectedArticle = matchingArticle
             // Scroll the article list to reveal the restored selection.
             // Use a delay so SwiftUI has time to populate the List.
+            // On macOS 12, scrolling a List that is still settling its initial
+            // layout corrupts the scroll offset, so skip the launch-time
+            // restore scroll there and only restore the selection.
             let article = matchingArticle
             let needsLoadNotification = isPendingRestore
+            let needsScroll: Bool
+            if #available(macOS 13.0, *) {
+                needsScroll = true
+            } else {
+                needsScroll = !isPendingRestore
+            }
             Task { @MainActor in
                 try? await Task.sleep(nanoseconds: 300_000_000)
                 guard self.selectedArticle?.id == article.id else { return }
-                NotificationCenter.default.post(name: .scrollToArticle, object: article)
+                if needsScroll {
+                    NotificationCenter.default.post(name: .scrollToArticle, object: article)
+                }
                 if needsLoadNotification {
                     NotificationCenter.default.post(name: .loadArticle, object: nil)
                 }
@@ -841,7 +852,11 @@ final class MyJSONDirectoryMonitor {
 
         if pendingSidebarScroll {
             pendingSidebarScroll = false
-            scrollSidebarToSelectedView()
+            // pendingSidebarScroll is only set on the launch-restore path;
+            // skip the scroll on macOS 12 for the same layout reason as above.
+            if #available(macOS 13.0, *) {
+                scrollSidebarToSelectedView()
+            }
         }
     }
 

Planet/versioning.xcconfig

@@ -1 +1 @@
-CURRENT_PROJECT_VERSION = 2832
+CURRENT_PROJECT_VERSION = 2833