Add QR scanner support for macOS with camera selection

- Refactor QR scanner into separate Scanner module for iOS and macOS
- Add camera selection menu for devices with multiple cameras
- Use Vision framework for QR detection on macOS
- Remove tvOS QR scanner support (continuity camera)
- Add camera entitlement and usage description for macOS
- Fix minor issues in Intents and ExtensionProvider

sing-box.xcodeproj/project.pbxproj

@@ -9,7 +9,6 @@
 /* Begin PBXBuildFile section */
 		3A017F922A4AB2E4009149FA /* GRDB in Frameworks */ = {isa = PBXBuildFile; productRef = 3A017F912A4AB2E4009149FA /* GRDB */; };
 		3A096F8F2A4ED3DE00D4A2ED /* Extension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 3A096F862A4ED3DE00D4A2ED /* Extension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
-		3A1E8E692EDEC1AF00ADD104 /* CodeScanner in Frameworks */ = {isa = PBXBuildFile; productRef = 3A1E8E682EDEC1AF00ADD104 /* CodeScanner */; };
 		3A2E87F22ED5A91100644195 /* Runestone in Frameworks */ = {isa = PBXBuildFile; productRef = 3A2E87F12ED5A91100644195 /* Runestone */; };
 		3A2E87FB2ED5ABDA00644195 /* TreeSitterJSON5Runestone in Frameworks */ = {isa = PBXBuildFile; productRef = 3A2E87FA2ED5ABDA00644195 /* TreeSitterJSON5Runestone */; };
 		3A3AA7FC2A4EFDAE002F78AB /* Library.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3AEC211D2A459B4700A63465 /* Library.framework */; };
@@ -564,7 +563,6 @@
 			files = (
 				3A4EAD1B2A4FEB02005435B3 /* Library.framework in Frameworks */,
 				3A4A020D2B53E3DC004EFB87 /* QRCode in Frameworks */,
-				3A1E8E692EDEC1AF00ADD104 /* CodeScanner in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -803,7 +801,6 @@
 			name = ApplicationLibrary;
 			packageProductDependencies = (
 				3A4A020C2B53E3DC004EFB87 /* QRCode */,
-				3A1E8E682EDEC1AF00ADD104 /* CodeScanner */,
 			);
 			productName = ApplicationLibrary;
 			productReference = 3A4EAD102A4FEAE6005435B3 /* ApplicationLibrary.framework */;
@@ -1140,7 +1137,6 @@
 				3A2E87F02ED5A91100644195 /* XCLocalSwiftPackageReference "Frameworks/Runestone" */,
 				3A2E87F92ED5ABCF00644195 /* XCLocalSwiftPackageReference "Frameworks/TreeSitterJSON5" */,
 				3ACE5E012EE1A91100644196 /* XCRemoteSwiftPackageReference "CodeEditSourceEditor" */,
-				3A1E8E672EDEC1AF00ADD104 /* XCRemoteSwiftPackageReference "CodeScanner" */,
 			);
 			productRefGroup = 3AEC20C72A45991900A63465 /* Products */;
 			projectDirPath = "";
@@ -2750,14 +2746,6 @@
 				minimumVersion = 6.15.1;
 			};
 		};
-		3A1E8E672EDEC1AF00ADD104 /* XCRemoteSwiftPackageReference "CodeScanner" */ = {
-			isa = XCRemoteSwiftPackageReference;
-			repositoryURL = "https://github.com/twostraws/CodeScanner.git";
-			requirement = {
-				kind = upToNextMajorVersion;
-				minimumVersion = 2.5.2;
-			};
-		};
 		3A4A020B2B53E3DC004EFB87 /* XCRemoteSwiftPackageReference "qrcode" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/dagronf/qrcode.git";
@@ -2798,11 +2786,6 @@
 			package = 3A017F902A4AB2E4009149FA /* XCRemoteSwiftPackageReference "GRDB" */;
 			productName = GRDB;
 		};
-		3A1E8E682EDEC1AF00ADD104 /* CodeScanner */ = {
-			isa = XCSwiftPackageProductDependency;
-			package = 3A1E8E672EDEC1AF00ADD104 /* XCRemoteSwiftPackageReference "CodeScanner" */;
-			productName = CodeScanner;
-		};
 		3A2E87F12ED5A91100644195 /* Runestone */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = 3A2E87F02ED5A91100644195 /* XCLocalSwiftPackageReference "Frameworks/Runestone" */;

sing-box.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -46,15 +46,6 @@
         "version" : "0.12.1"
       }
     },
-    {
-      "identity" : "codescanner",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/twostraws/CodeScanner.git",
-      "state" : {
-        "revision" : "5e886430238944c7200fc9e10dbf2d9550dba865",
-        "version" : "2.5.2"
-      }
-    },
     {
       "identity" : "grdb.swift",
       "kind" : "remoteSourceControl",