Fix all SwiftLint violations across codebase

Resolves 130+ violations including deployment target checks, code style issues, and formatting inconsistencies. Adds SwiftLint disable comments for compiler-required availability checks while maintaining deployment target compliance.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Shared/Player/PlayerLayerView.swift

@@ -12,10 +12,6 @@ import Foundation
             wantsLayer = true
         }}
 
-        override init(frame frameRect: CGRect) {
-            super.init(frame: frameRect)
-        }
-
         override func makeBackingLayer() -> CALayer {
             player.avPlayerBackend.playerLayer
         }
@@ -28,12 +24,13 @@ import Foundation
     final class PlayerLayerView: UIView {
         var player: PlayerModel { .shared }
 
+        private var layerAdded = false
+
+        // swiftlint:disable:next unneeded_override
         override init(frame: CGRect) {
             super.init(frame: frame)
         }
 
-        private var layerAdded = false
-
         @available(*, unavailable)
         required init?(coder _: NSCoder) {
             fatalError("init(coder:) has not been implemented")