Respect .moodle-plugin-ci.yml config from subdirectories (#379)

[marinaglancy]

When running checks on a plugin, discover .moodle-plugin-ci.yml files in subdirectories (e.g., subplugins) and merge their notPaths/notNames filters, so subplugins can manage their own CI exclusions independently.

Fixes #379

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.37%. Comparing base (198ee6c) to head (f27ef1f).

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #380      +/-   ##
============================================
+ Coverage     88.21%   88.37%   +0.15%     
- Complexity      767      780      +13     
============================================
  Files            77       77              
  Lines          2334     2365      +31     
============================================
+ Hits           2059     2090      +31     
  Misses          275      275              

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[Copilot]

Pull request overview

This PR extends plugin file discovery so that .moodle-plugin-ci.yml files found in subdirectories (e.g., subplugins) can contribute additional filter rules, enabling subcomponents to control their own CI exclusions.

Changes:

• Added support for discovering .moodle-plugin-ci.yml files below the plugin root and merging their notPaths/notNames into the Finder ignores.
• Prefixed subdirectory notPaths entries so they match correctly when the Finder is rooted at the main plugin directory.
• Added PHPUnit tests covering subdirectory notPaths, context-specific filters, and multiple subdirectory configs.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
src/Bridge/MoodlePlugin.php	Adds recursive discovery/merge of subdirectory config filters into getFiles() results.
tests/Bridge/MoodlePluginTest.php	Adds tests validating merged ignore behavior from subdirectory configs (including context-specific sections).

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[Copilot]

$relativeDir is derived by subtracting string lengths from real paths (dirname($file->getRealPath()) vs $this->directory). If $this->directory is not normalized (e.g., contains ".." like in src/Command/PHPDocCommand.php) or has different separators, substr() can produce an incorrect offset (or false), leading to wrong prefixes or even a TypeError in rtrim(). Consider using Symfony Finder’s $file->getRelativePath() (or Path::makeRelative(realpath(...), realpath(...))) to compute the config directory relative to the plugin root in a path-safe way.

Suggested change

	$relativeDir = rtrim(substr(
	dirname($file->getRealPath()),
	strlen($this->directory) + 1
	), '/');
	// Prefix notPaths with the relative subdirectory path.
	if (!empty($ignores['notPaths'])) {
	foreach ($ignores['notPaths'] as $notPath) {
	$merged['notPaths'][] = $relativeDir . '/' . $notPath;
	$relativeDir = rtrim($file->getRelativePath(), '/');
	// Prefix notPaths with the relative subdirectory path.
	if (!empty($ignores['notPaths'])) {
	$prefix = $relativeDir === '' ? '/' : $relativeDir . '/';
	foreach ($ignores['notPaths'] as $notPath) {
	$merged['notPaths'][] = $prefix . $notPath;

[marinaglancy]

agree, corrected