fix(xcode): add walk_strategy to Xcode project compile sources

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: tianjianjiang

McBopomofo.xcodeproj/project.pbxproj

@@ -17,6 +17,7 @@
 		6A2E40F9253A6AA000D1AE1D /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 6A2E40F5253A69DA00D1AE1D /* Images.xcassets */; };
 		6A38BC1515FC117A00A8A51F /* data.txt in Resources */ = {isa = PBXBuildFile; fileRef = 6A38BBF615FC117A00A8A51F /* data.txt */; };
 		6A4F5F982879E838008C4307 /* reading_grid.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6A4F5F932879E838008C4307 /* reading_grid.cpp */; };
+		9BFBCAEED2ED8369BC7D6ED5 /* walk_strategy.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 9CBDA16D485EE2E7F11D171B /* walk_strategy.cpp */; };
 		6A660A702EAF371000D53D7B /* ByteBlockBackedDictionary.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6A660A6F2EAF371000D53D7B /* ByteBlockBackedDictionary.cpp */; };
 		6A68C1C32EC7F2C0005284A0 /* Localizable.stringsdict in Resources */ = {isa = PBXBuildFile; fileRef = 6A68C1C12EC7F2C0005284A0 /* Localizable.stringsdict */; };
 		6A6ED16B2797650A0012872E /* template-phrases-replacement.txt in Resources */ = {isa = PBXBuildFile; fileRef = 6A6ED1632797650A0012872E /* template-phrases-replacement.txt */; };
@@ -140,6 +141,8 @@
 		6A4F5F912879E838008C4307 /* reading_grid.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = reading_grid.h; sourceTree = "<group>"; };
 		6A4F5F922879E838008C4307 /* language_model.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = language_model.h; sourceTree = "<group>"; };
 		6A4F5F932879E838008C4307 /* reading_grid.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = reading_grid.cpp; sourceTree = "<group>"; };
+		1B900C269506F40A48314006 /* walk_strategy.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = walk_strategy.h; sourceTree = "<group>"; };
+		9CBDA16D485EE2E7F11D171B /* walk_strategy.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = walk_strategy.cpp; sourceTree = "<group>"; };
 		6A660A6E2EAF371000D53D7B /* ByteBlockBackedDictionary.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ByteBlockBackedDictionary.h; sourceTree = "<group>"; };
 		6A660A6F2EAF371000D53D7B /* ByteBlockBackedDictionary.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = ByteBlockBackedDictionary.cpp; sourceTree = "<group>"; };
 		6A68C1C22EC7F2C0005284A0 /* en */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = en; path = en.lproj/Localizable.stringsdict; sourceTree = "<group>"; };
@@ -430,6 +433,8 @@
 				6A4F5F912879E838008C4307 /* reading_grid.h */,
 				6A4F5F922879E838008C4307 /* language_model.h */,
 				6A4F5F932879E838008C4307 /* reading_grid.cpp */,
+				1B900C269506F40A48314006 /* walk_strategy.h */,
+				9CBDA16D485EE2E7F11D171B /* walk_strategy.cpp */,
 			);
 			path = gramambular2;
 			sourceTree = "<group>";
@@ -745,6 +750,7 @@
 				D4314F0D2ED3690F0071DD71 /* NumberInputHelper.swift in Sources */,
 				D4E569DC27A34D0E00AC2CEF /* KeyHandler.mm in Sources */,
 				6A4F5F982879E838008C4307 /* reading_grid.cpp in Sources */,
+				9BFBCAEED2ED8369BC7D6ED5 /* walk_strategy.cpp in Sources */,
 				D47F7DD0278C0897002F9DD7 /* NonModalAlertWindowController.swift in Sources */,
 				D456576E279E4F7B00DF6BC9 /* KeyHandlerInput.swift in Sources */,
 				D47F7DCE278BFB57002F9DD7 /* PreferencesWindowController.swift in Sources */,