fix(nova): correct NovaAPIServer API surface to match actual class definitions

Fixed field/method names after verifying against actual source.
All three focus apps now build and archive successfully.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

Author: kochj23

MLX Code.xcodeproj/project.pbxproj

@@ -167,7 +167,7 @@
 		4290A181319FB0316E2CD114 /* Features.md */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = net.daringfireball.markdown; name = Features.md; path = Help/Features.md; sourceTree = "<group>"; };
 		48562778370F4A07B8B69516078EE7A2 /* MLX_Code.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = MLX_Code.entitlements; sourceTree = "<group>"; };
 		4B4B7D93C0CD7188EECDFAF4 /* ConversationManager.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; name = ConversationManager.swift; path = "MLX Code/Services/ConversationManager.swift"; sourceTree = "<group>"; };
-		4F59085B2CFA96DD4FA87E4C /* NovaAPIServer.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = NovaAPIServer.swift; sourceTree = "<absolute>"; };
+		4F59085B2CFA96DD4FA87E4C /* NovaAPIServer.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; name = NovaAPIServer.swift; path = "/Volumes/Data/xcode/MLX Code/MLX Code/Services/NovaAPIServer.swift"; sourceTree = "<absolute>"; };
 		50B62FF9A14FFACDD5EA3434 /* MLXCodeWidget.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = MLXCodeWidget.swift; sourceTree = "<group>"; };
 		52CA5C71B521246C88421C5E /* TestGenerationTool.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = Tools/TestGenerationTool.swift; sourceTree = "<group>"; };
 		564D43E7BF13C063A567706B /* EnhancedMessageView.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; name = EnhancedMessageView.swift; path = "MLX Code/Views/EnhancedMessageView.swift"; sourceTree = "<group>"; };