Devin/1738180608 upgrade angular 18

UPGRADE-TO-ANGULAR-18.md

@@ -0,0 +1,56 @@
+# Upgrade to Angular 18 Migration Guide
+
+## Changes Made
+
+### Package Updates
+- Updated Angular packages from v14.0.0 to v18.0.0
+- Updated TypeScript from v4.7.2 to v5.4.2
+- Updated RxJS from v7.5.0 to v7.8.1
+- Updated zone.js to v0.14.3
+- Updated testing dependencies (Jasmine, Karma) to latest compatible versions
+
+### Configuration Changes
+- Updated tsconfig.json:
+  - Changed target and module to ES2022
+  - Added useDefineForClassFields option
+  - Updated lib array to include ES2022
+
+### Type Safety Improvements
+- Enhanced TutorialService with stronger typing:
+  - Replaced `any` types with specific types (number, string)
+  - Added proper return types for HTTP methods
+  - Introduced Partial<Tutorial> for create and update payloads
+
+## Breaking Changes and Considerations
+
+### TypeScript Requirements
+- Strict TypeScript version requirement: ^5.4.2
+- ES2022 target required for Angular 18 features
+
+### HTTP Client Changes
+- More strict typing on HTTP methods
+- Return types explicitly defined for all API calls
+
+### Testing Considerations
+- Test setup remains compatible with Angular 18
+- No changes needed to existing test configurations
+- Karma and Jasmine dependencies updated to latest versions
+
+## Prerequisites
+- Node.js 18.13.0 or later
+- TypeScript 5.4.2 or later
+- Angular CLI 18.x
+
+## Development Tools
+- @angular-devkit/build-angular: ^18.0.0
+- @angular/cli: ~18.0.0
+- @angular/compiler-cli: ^18.0.0
+
+## Next Steps
+1. Install dependencies: `npm install`
+2. Install Angular CLI globally: `npm install -g @angular/cli@18`
+3. Build the application: `ng build`
+4. Run tests: `ng test`
+
+## Note on Standalone Components
+The application maintains its current module-based architecture as the small size and simple structure don't warrant migration to standalone components. This decision helps maintain simplicity and reduces migration complexity.