Feature OAuth2.0 support

[StanBarrows]

No description provided.

[Copilot]

Pull Request Overview

Adds first-class OAuth2 support for Bexio integration, including token storage, service logic, connector enhancements, routes, controller/views, and documentation updates.

• Introduce BexioOAuthTokenStore, BexioOAuthService, and exception handler for OAuth2 flows
• Extend BexioConnector with OAuth2 boot logic and default OAuth config
• Add controller/routes/views for the OAuth2 redirect/callback flow and update README/config

Reviewed Changes

Copilot reviewed 20 out of 20 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/Support/BexioOAuthTokenStore.php	Cache-encrypted token storage logic
src/Services/BexioOAuthService.php	Exchange, fetch, verify and refresh logic
src/BexioConnector.php	OAuth2 boot middleware and default config
src/Http/Controllers/BexioOAuthController.php	Redirect/callback handling
src/Support/BexioOAuthExceptionHandler.php	Map exceptions to user-friendly views
routes/bexio.php	OAuth2 routes definitions
config/bexio.php	New use_oauth2 and related settings
resources/views/oauth-result.blade.php	Generic result view for OAuth outcomes
src/BexioServiceProvider.php	Publish routes/views and config
README.md	Document OAuth2 setup and flow
tests/Support/BexioTokenStoreTest.php	Token store unit tests
tests/Services/BexioOAuthServiceTest.php	OAuth2 service unit tests
tests/Controllers/BexioOAuthControllerTest.php	Controller integration tests
tests/Requests/OpenID/FetchUserinfoRequestTest.php	Request DTO mapping test
tests/Fixtures/Saloon/OpenID/fetch-userinfo.json	Fixture for userinfo response

Comments suppressed due to low confidence (4)

config/bexio.php:13

• [nitpick] The commented-out alternative auth block is outdated and may confuse users. Consider removing or updating it to reflect the current config structure.

/*	'auth' => [

README.md:19

• [nitpick] The table header separators use placeholder dashes and don't match column alignment. Update them to proper header separators (e.g., | Package | PHP | Laravel | then |---------|-----|---------|).

| ------- | ----------- | ------- |

src/Services/BexioOAuthService.php:20

• The method has no return type hint but the docblock says @return mixed. Consider adding a concrete return type or updating the docblock to keep signature and docs in sync.

public function exchangeCodeForAuthenticator(string $code, string $state, string $expectedState)

src/BexioServiceProvider.php:21

• [nitpick] The autogenerated TODO comment can be removed now that booting logic is implemented. Cleaning it up improves readability.

parent::bootingPackage(); // TODO: Change the autogenerated stub