Comprehensive documentation covering project overview, repository
structure, PHP/Symfony version compatibility, development commands,
testing patterns, CI pipeline, and key architectural concepts like
service maps, parameter maps, and the distinction between type
extensions and rules.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CLAUDE.md is a development file for AI assistant context and should
not be included in the distributed archive.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

…ssue body

Add `issues: types: [opened]` trigger so the workflow reacts when new
issues are opened with the trigger phrase. Also add
`github.event.issue.body` as a fallback in COMMENT_BODY so the issue
description is checked when no comment or review body is available.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Add documentation for features that were implemented but not listed
in the README: ResponseHeaderBag::getCookies(), Serializer/Denormalizer
return types, HandleTrait::handle(), FormInterface::getErrors(),
KernelInterface::locateResource(), Extension::getConfiguration(),
CacheInterface::get(), BrowserKitAssertionsTrait::getClient(),
Command::getHelper(), console argument/option validation rules,
and @required autowiring support. Also fix missing parentheses
on existing InputInterface method references.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Removed unnecessary token from checkout step.

Signed-off-by: StepSecurity Bot <bot@stepsecurity.io>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>