feat: reaction-forwarder を追加

[yukikamome316]

特定のリアクションが 3 つ以上ついたメッセージを、事前に指定した「ピン留めチャンネル」に転送されるモジュールを作りました。

Starboard Bot の機能を真似しています。

[Copilot]

Pull Request Overview

This PR adds a new reaction-forwarder module that mimics Starboard Bot functionality by forwarding messages with specific reactions to a designated channel. The module monitors messages for configured reactions and forwards them to a "pin channel" when they reach a threshold (3+ reactions as mentioned in the description).

• Implements a complete reaction forwarding system with enable/disable commands
• Adds Discord.js partials support for handling partial message reactions
• Includes configuration via environment variables and slash commands

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
modules/reaction-forwarder/reaction-forwarder.ts	Main module implementation with reaction handling, message forwarding, and slash commands
modules/reaction-forwarder/constants.ts	Configuration constants, interface definitions, and default settings
modules/reaction-forwarder/index.ts	Module export file
modules/index.ts	Adds reaction-forwarder to module exports
main.ts	Adds required Discord.js intents and partials for reaction handling
README.md	Documentation updates for the new module
.env.example	Adds environment variable example for channel configuration

[syoch]

よさげ