webhook events

[topi314]

https://discord.com/developers/docs/events/webhook-events

[Copilot]

Pull Request Overview

This pull request implements webhook events support according to Discord's webhook events documentation. The changes restructure the HTTP handling system and introduce comprehensive support for webhook-based events alongside existing interaction handling.

Key changes include:

• Refactoring of the HTTP server architecture from a single httpserver package to separate httpinteraction and webhookevent packages
• Complete restructuring of event management with split Event, GatewayEvent, and WebhookEvent interfaces
• Migration from single GenericEvent to composition-based event structure with separate gateway and webhook contexts

Reviewed Changes

Copilot reviewed 103 out of 104 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
webhookevent/messages.go	Defines webhook message structures and event data types for Discord webhook events
webhookevent/handler.go	Implements HTTP handler for processing webhook events with signature verification
events/generic_event.go	Refactors event system from single GenericEvent to separate Event/GatewayEvent/WebhookEvent composition
bot/config.go	Updates client configuration to support both interaction and webhook handlers
gateway/gateway.go	Modifies gateway to pass full Message objects instead of individual parameters

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