Support Moodle cloning from local repo

[kabalin]

Fixes #306

[Copilot]

Pull request overview

This PR adds support for cloning Moodle from local repositories in addition to remote Git URLs. The validation logic now accepts file:// URLs and various directory path formats (absolute, relative, and home directory paths), making the behavior consistent with git clone.

Changes:

• Enhanced URL validation to accept local repository paths (file://, absolute, relative, and ~ paths)
• Updated documentation to reflect local repository support
• Added test cases for the new local path formats

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/Validate.php	Added validation logic for file:// URLs and directory paths before falling back to standard git URL validation
tests/ValidateTest.php	Added test cases for valid local path formats and updated invalid URL test cases with clarifying comments
src/Command/InstallCommand.php	Updated --repo option description to mention local path support
docs/CLI.md	Updated --repo documentation to mention local path support
docs/CHANGELOG.md	Added changelog entry documenting the new feature

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.26%. Comparing base (3f5ae0d) to head (51fbd2c).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #376      +/-   ##
============================================
+ Coverage     88.24%   88.26%   +0.02%     
- Complexity      764      767       +3     
============================================
  Files            77       77              
  Lines          2330     2334       +4     
============================================
+ Hits           2056     2060       +4     
  Misses          274      274              

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[vmdef]

Thanks @kabalin .
The changes make sense and are well documented and tested.