Rebake team logos at 72×72 for crisp notification thumbnails

The notification thumbnail's native display size is ~48 physical pixels
(measured empirically with a size-ladder test attached via the dev menu).
Shipping logos at 512×342 forced macOS to downsample ~10×, which is what
was producing the blurry/aliased team logos in banner thumbnails.

- Pre-render logos at 72×72 (1.5× over native; stays sharp, gives a little
  extra detail for retina displays without triggering aliasing)
- Trim transparent margins before fitting: NHL brand SVGs pad their
  viewBox generously, so the actual logo was only ~60% of the bundled
  image. square_logo.swift now scans the alpha channel, crops to the
  tight bounding box, then fits aspect-preserved into the 72×72 canvas.
- Drop the 32 unused TeamLogo_*.imageset asset-catalog entries (dead code
  since the team-filter feature was removed); notifications load PNGs
  from the filesystem bundle subdir
- Move TeamLogos/ → Resources/TeamLogos/ and update project.yml source
  paths; excludes: on the recursive scan prevents duplicate flat copies
  that were bloating the bundle
- Simplify NotificationManager: drop SVG fallback (macOS doesn't accept
  SVG attachments) and content-hash identifier experiments; back to the
  minimal working config
- Dev menu: add "Thumbnail Size Test" which fires a ladder of 10 test
  notifications (16…128px) for future sizing verification
- Fire a test game-start notification on startup in DEBUG builds so the
  dev loop doesn't require clicking through the menu after each launch
- Scripts/square_logo.swift: alpha-bbox trim + aspect-preserved fit

IceGlass/Managers/MenuManager.swift

@@ -220,6 +220,9 @@ class MenuManager: @unchecked Sendable {
         devSubmenu.addItem(
             NSMenuItem(title: "Test Goal Scored Notification", action: #selector(triggerTestGoalScored), keyEquivalent: "").withTarget(self)
         )
+        devSubmenu.addItem(
+            NSMenuItem(title: "Thumbnail Size Test", action: #selector(triggerThumbnailSizeTest), keyEquivalent: "").withTarget(self)
+        )
         devMenuItem.submenu = devSubmenu
         menu.addItem(devMenuItem)
 #endif
@@ -304,6 +307,10 @@ class MenuManager: @unchecked Sendable {
             )
         }
     }
+
+    @objc private func triggerThumbnailSizeTest() {
+        NotificationManager.shared.sendThumbnailSizeTest()
+    }
 #endif
 
     @objc private func showAbout() {
@@ -365,6 +372,10 @@ class MenuManager: @unchecked Sendable {
     }
 
     private static func nextGameLabel(for game: Scoreboard.Game) -> String {
+        let state = game.parsedGameState
+        if state.isLive {
+            return state.shortTag
+        }
         let dayLabel: String
         switch game.gameDate {
         case Date.todayET: dayLabel = "Today"
@@ -381,6 +392,7 @@ class MenuManager: @unchecked Sendable {
             }
         }
         let time = game.startTimeET.trimmingCharacters(in: .whitespaces)
-        return "\(dayLabel) \(time)"
+        let base = "\(dayLabel) \(time)"
+        return state == .pre ? "\(base) (PRE)" : base
     }
 }