Add config generator for discovering autowire-eligible classes

[Firehed]

Summary

• Adds ConfigGenerator service that scans directories for classes with autowire-compatible constructors
• Includes CLI tool (bin/generate-config) for easy command-line usage
• Uses composer/class-map-generator for class discovery (added as dev dependency and in suggest)

Usage

CLI:

vendor/bin/generate-config src/Services src/Repositories
vendor/bin/generate-config -o config/autowired.php src/
vendor/bin/generate-config -e config/manual.php -o config/autowired.php src/

Programmatic:

$generator = newConfigGenerator();
$generator->addDirectory('src/Services');
$generator->excludeFromFile('config/manual.php');
file_put_contents('config/autowired.php', $generator->generate());

Eligibility criteria

A class is considered autowire-eligible if:

• Concrete class (not abstract/interface/trait/enum)
• Public constructor (or no constructor)
• All required params typed with non-builtin types
• No Closure or Generator typed params

Closes#77

Test plan

• Unit tests for ConfigGenerator
• Manual testing of CLI tool
• Test on a real project

🤖 Generated with Claude Code

[codecov]

Codecov Report

❌ Patch coverage is 82.60870% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.05%. Comparing base (029055c) to head (94576b5).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/ConfigGenerator.php	82.60%	8 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@## main #78 +/- ##
============================================
+ Coverage 82.00% 82.05% +0.04% - Complexity 207 225 +18 
============================================
Files 27 28 +1 Lines 617 663 +46 ============================================
+ Hits 506 544 +38 - Misses 111 119 +8 

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