Add reopen macro

[deoshreyas]

This adds a ?reopen macro for support team members that allows for (only closed) tickets to be reopened.
Reopening tickets sends a user-facing message saying that the ticket has been reopened, and also sends a message in the internal tickets channel.

[Copilot]

Pull Request Overview

This PR adds a ?reopen macro that allows support team members to reopen closed tickets. The macro updates the ticket status in the database, notifies users that their ticket has been reopened, posts a message in the internal tickets channel, and updates reaction indicators on the original message.

Key changes:

• New Reopen macro class that handles ticket reopening logic
• Modified message event handler to distinguish between reopen macro (for closed tickets) and other macros (for open tickets)
• Added the Reopen macro to the list of available macros

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
nephthys/macros/reopen.py	Implements the Reopen macro with database updates, user notifications, and internal messaging
nephthys/macros/init.py	Registers the Reopen macro in the macros list
nephthys/events/message.py	Updates message handling logic to route reopen macro to closed tickets and other macros to open tickets

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[MMK21Hub]

Looks awesome! I've suggested two things (which you probably didn't do to avoid refactoring too much, tbf!)

The bot messages look great, and thanks for considering the edge cases with allowing macros on closed tickets :)

lmk if you have any questions about the requested changes!

[Copilot]

Pull Request Overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

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[MMK21Hub]

looks good!