feat: implement deep linking & universal links for event confirmation

- Add QR code toggle for HTTPS/Custom Scheme links
- Add Universal Links (iOS) and App Links (Android) support
- Create deep link route handler with platform detection
- Add .well-known files for domain verification
- Fix Content-Type headers for apple-app-site-association
- Add environment configuration for staging & production
- Add comprehensive testing documentation

Testing:
- QR scan → Safari → App switch working ✅
- Platform detection working ✅
- Auto redirect to custom scheme working ✅
- Web fallback JSON response working ✅

### No Issue

ios/HIPMIBadungConnect.xcodeproj/project.pbxproj

@@ -183,6 +183,7 @@
 				FB0CB57BF4D74C1D87C2036C /* Remove signature files (Xcode workaround) */,
 				14B3DE54EE4049AEB1EADA6B /* Remove signature files (Xcode workaround) */,
 				B4CF5E09DBB44A4FB9CB91B9 /* Remove signature files (Xcode workaround) */,
+				C894BD25C8224984AAD73398 /* Remove signature files (Xcode workaround) */,
 			);
 			buildRules = (
 			);
@@ -995,6 +996,23 @@
           rm -rf \"$CONFIGURATION_BUILD_DIR/MapLibre.xcframework-ios.signature\";
         ";
 		};
+		C894BD25C8224984AAD73398 /* Remove signature files (Xcode workaround) */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			name = "Remove signature files (Xcode workaround)";
+			inputPaths = (
+			);
+			outputPaths = (
+			);
+			shellPath = /bin/sh;
+			shellScript = "
+          echo \"Remove signature files (Xcode workaround)\";
+          rm -rf \"$CONFIGURATION_BUILD_DIR/MapLibre.xcframework-ios.signature\";
+        ";
+		};
 /* End PBXShellScriptBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */