feat: add PUT, HEAD, DELETE, and PATCH HTTP methods

[soyuka]

Summary

• Adds put(), head(), delete(), and patch() methods to SolidClient
• put() supports optional LDP BasicContainer Link header for container creation
• patch() defaults to application/sparql-update, also supports text/n3 for N3 Patch
• Applies CS Fixer auto-fixes (explicit nullable types, \sprintf)

Stack

1/8 — This PR → main

Test plan

• Unit tests for all 4 new methods with MockHttpClient
• Existing SmokeTest still passes
• CS Fixer clean

🤖 Generated with Claude Code

[soyuka]

Stack: 1/6 → main

[Copilot]

Pull request overview

This PR extends the core SolidClient HTTP surface area by adding first-class support for additional HTTP verbs commonly used in Solid/LDP interactions, while also applying minor code-style fixes (explicit nullable types and fully-qualified \sprintf).

Changes:

• Add put(), head(), delete(), and patch() to SolidClient (with patch() defaulting to application/sparql-update).
• Add PHPUnit coverage for the new methods using Symfony’s MockHttpClient/MockResponse.
• Apply CS Fixer-driven signature/style updates (explicit ?Type nullability, \sprintf).

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
tests/SolidClientTest.php	Adds unit tests covering PUT/HEAD/DELETE/PATCH behavior and headers/body defaults.
src/SolidClientFactory.php	Makes the optional OidcClient argument explicitly nullable (?OidcClient).
src/SolidClient.php	Implements the new HTTP verb methods and updates a few signatures/sprintf calls.
src/Bundle/Form/SolidLoginType.php	Makes the validation callback closure static (no $this capture).

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