Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

* Add Upgrade Assistant tool for appsettings.json migration

- Created LinkDotNet.Blog.UpgradeAssistant console tool in tools folder
- Implemented migration framework with version tracking
- Added migrations for 8.0→9.0, 9.0→11.0, and 11.0→12.0
- Colorful console output using ANSI colors
- Automatic backup functionality with timestamps
- Dry-run mode to preview changes
- Comprehensive documentation in docs/Migrations/UpgradeAssistant.md
- Updated MIGRATION.md to reference the new tool
- Added ConfigVersion field to appsettings.json
- Added backups/ to .gitignore

Co-authored-by: linkdotnet <[email protected]>

* Add unit tests for Upgrade Assistant

- Created test project LinkDotNet.Blog.UpgradeAssistant.Tests
- Added comprehensive tests for Migration8To9, Migration9To11, Migration11To12
- Added tests for MigrationManager including end-to-end scenarios
- All 17 tests passing

Co-authored-by: linkdotnet <[email protected]>

* Address code review feedback

- Remove OutputType from test project csproj
- Fix document disposal pattern in MigrationManager
- Use separate variable for each migration document

Co-authored-by: linkdotnet <[email protected]>

* Address PR feedback - use Spectre.Console, remove old migrations, skip appsettings.json

- Replace CommandLineParser with Spectre.Console for CLI and colorful output
- Remove Migration_8_To_9 and Migration_9_To_11 (current version is 11.0)
- Make CurrentVersion dynamic based on highest ToVersion from migrations
- Skip version-controlled appsettings.json file during migration
- Update tests to reflect changes (9 tests passing)
- Enhanced help and version output with Figlet text and tables

Co-authored-by: linkdotnet <[email protected]>

* Add projects to solution and remove unnecessary comments

- Added LinkDotNet.Blog.UpgradeAssistant and LinkDotNet.Blog.UpgradeAssistant.Tests to LinkDotNet.Blog.sln
- Removed inline comments from code, using descriptive method names instead
- Extracted ParseCommandLineArguments method for better code organization
- Created DetermineCurrentVersionFromMigrations and IsVersionControlledAppsettingsFile methods
- Kept only XML documentation comments (///) which are standard
- All tests passing (9/9)

Co-authored-by: linkdotnet <[email protected]>

* Add Automated Migration documentation to README files

- Added chapter about Automated Configuration Migration (Version 12+) in docs/Migrations/Readme.md
- Documented Upgrade Assistant features, usage examples, and benefits
- Added "Automated Configuration Migration" as a feature in main Readme.md
- Provided clear migration path: automated for v12+, manual for pre-v12

Co-authored-by: linkdotnet <[email protected]>

* docs: Add clarification and cleanup

* docs: Add readme

* fix: Build errors

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: linkdotnet <[email protected]>
Co-authored-by: Steven Giesel <[email protected]>