Add before_send_service support in Laravel provider

[pavelzotikov]

Summary

This PR introduces support for the before_send_service option in the Laravel integration.

Why

This allows developers to preprocess, enrich or filter events before they are sent to Hawk, enabling more flexible error reporting (e.g., removing sensitive data, conditionally skipping events).

[Copilot]

Pull Request Overview

Adds support for a configurable before_send_service hook in the Laravel provider to allow preprocessing/filtering of events before sending to Hawk.

• Introduces a BeforeSendServiceInterface and wires it into the provider via the hawk.before_send_service config.
• Updates provider to validate and resolve the service, and updates config and README accordingly.
• Bumps package version to 0.1.1.

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/Services/BeforeSendServiceInterface.php	Adds an interface for a before-send hook (currently empty).
src/ErrorLoggerServiceProvider.php	Reads a before_send_service from config, validates it, and injects into Catcher options.
config/hawk.php	Adds before_send_service config option.
composer.json	Version bump to 0.1.1.
README.md	Documents setup, features, and the BeforeSend hook usage.

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