Generate quality-checked PHP SDKs

[ChiragAgg5k]

Summary

• make PHP templates emit Pint-clean, strictly typed generated source and tests
• add generated SDK configuration for Pint (PSR-12), PHPStan level 5, and Rector
• add Composer scripts and CI validation for all three quality checks
• enable the full Pint and Rector rulesets without ignored rules or baselines
• improve generated request handling and multipart upload typing while retaining completed-upload resume behavior

This completes the PHP target in #1813.

Validation

rm -rf examples/php
php example.php php server
cd examples/php
composer install
composer lint
composer analyse -- --no-progress
composer refactor
composer audit
composer test

Results:

• Pint: passed
• PHPStan level 5: no errors
• Rector dry-run: no changes
• Composer audit: no advisories
• PHPUnit: 787 tests, 962 assertions

Generator checks:

composer lint-twig
composer refactor:check
git diff --check

[greptile-apps]

Greptile Summary

The PR makes generated PHP SDKs strictly typed and compatible with Pint, PHPStan, and Rector while updating multipart upload and response handling.

• Adds generated quality-tool configurations, Composer scripts, and CI checks.
• Modernizes PHP source and test templates for strict typing and PSR-12 formatting.
• Updates chunked-upload resume, authentication, progress, and completion handling.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
templates/php/base/requests/file.twig	Updates generated multipart and concurrent chunk-upload handling; the previously reported unconditional bearer-key access is now correctly guarded by the same condition that generates the client property.
templates/php/src/Client.php.twig	Adds strict typing and quality-tool-compatible transport code while keeping bearer-specific properties conditional.
templates/php/src/Services/Service.php.twig	Generates strictly typed service methods and conditionally imports file support.
src/SDK/Language/PHP.php	Registers generated quality configurations and updates PHP test-fixture rendering conventions.
templates/php/composer.json.twig	Adds generated SDK development dependencies and scripts for linting, analysis, and refactoring.
.github/workflows/validation.yml	Runs the new PHP quality checks during generated SDK validation.

_{Reviews (4): Last reviewed commit: "fix: guard multipart bearer authorizatio..." | Re-trigger Greptile}