feature: ISSUE-282 — ping manufacturing role in forum thread when order is submitted

[GitAddRemote]

Summary

• After a new order forum thread is created, sends a follow-up message into the thread mentioning MANUFACTURING_ROLE_ID
• Ping is skipped when manufacturingRoleId is empty (defensive guard in addition to the existing config validation)
• thread.send failure is caught, logged at warn, and the success reply is still sent to the user
• Widened thread type from { id: string } to ThreadChannel so .send() is type-safe

Test plan

• thread.send called with correct content and allowedMentions on success
• thread.send failure does not block the success editReply — warn is logged
• No ping (and no error) when manufacturingRoleId is empty
• All 541 tests pass (npm run quality)

Closes #282

[Copilot]

Pull request overview

Adds a non-blocking follow-up message in newly created manufacturing order forum threads that mentions the configured manufacturing role, so staff are notified immediately when an order is submitted.

Changes:

• Widen the created thread type to ThreadChannel so thread.send() is type-safe.
• After thread creation, send a role mention message into the thread with allowedMentions.roles properly scoped, and treat failures as non-fatal (warn + continue).
• Add tests for ping-on-success, ping failure being non-blocking, and skip behavior when manufacturingRoleId is empty.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/commands/order-submit.command.ts	Sends a role ping message into the created order thread with guarded config + non-fatal error handling.
src/commands/tests/order-submit.command.test.ts	Extends mocks and adds tests for ping success/failure/skip scenarios.

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[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

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