Create dependabot.yml

Refactor InMemoryTodoRepository to use FindAsync for fetching TodoItems and simplify UpdateTodoAsync method; improve code readability in index.ts with comments and formatting adjustments

Update README.md

No code changes made; skipping commit.

Update TodoApiEndpoints and TodoSkillsetEndpoints to use null-forgiving operator for GitHub token; modify WeatherData model properties to be nullable

Refactor TodoSkillsetEndpoints to use TodoItem for deletion and update InMemoryTodoRepository to use SingleOrDefaultAsync for fetching TodoItems

Merge branch 'main' of https://github.com/congiuluc/GitHub-Copilot-Extension-Demo

Update InMemoryTodoRepository to return updated TodoItem

Update README.md

Add initial project structure with API, app, and infrastructure configurations