Let rows update their counts, drop fake dates, and own failed lookups

MAC6: a snapshot mutation carries its video count back to the list cache.
MAC8: playlist rows and cards are Buttons with the context menu attached,
so macOS accessibility can reach Edit and Delete.
MAC10: a published date stamped with the request's own time is dropped at
both API sentinels, and formattedPublishedDate refuses zero-interval output.
MAC11: a failed history hydration shows Details unavailable with a Try
Again action instead of keeping the raw video ID forever; an empty 200
body is a legible failure.

Yattee/Models/Video.swift

@@ -111,6 +111,29 @@ struct Video: Identifiable, Codable, Sendable {
         )
     }
 
+    /// The same standing-in video under wording that says the metadata could
+    /// not be fetched, for a row whose fetch has definitively failed.
+    ///
+    /// Only what is shown changes: the video handed to the player and the queue
+    /// keeps its ID, which is the part that plays.
+    static func metadataUnavailable(for videoID: String, title: String) -> Video {
+        Video(
+            id: .global(videoID),
+            title: title,
+            description: nil,
+            author: Author(id: "", name: ""),
+            duration: 0,
+            publishedAt: nil,
+            publishedText: nil,
+            viewCount: nil,
+            likeCount: nil,
+            thumbnails: [],
+            isLive: false,
+            isUpcoming: false,
+            scheduledStartTime: nil
+        )
+    }
+
     /// Whether the title is only the video's own ID standing in for one.
     ///
     /// Anything showing this video beside details it fetched itself should
@@ -166,8 +189,13 @@ struct Video: Identifiable, Codable, Sendable {
     }
 
     /// Formatted published date, preferring parsed Date over API-provided text.
+    ///
+    /// A date that would render as "in 0 seconds" is shown as nothing at all:
+    /// it is what an instance sends in place of an upload date it does not
+    /// have, and the metadata line is better one segment short than wrong.
     var formattedPublishedDate: String? {
         if let publishedAt {
+            guard !RelativeDateFormatter.isEffectivelyNow(publishedAt) else { return nil }
             let formatter = RelativeDateTimeFormatter()
             formatter.unitsStyle = .full
             return formatter.localizedString(for: publishedAt, relativeTo: Date())