chore(gastown): fix format and lint CI failures

[jrf0110]

Summary

Fixes two CI failures blocking the gastown-staging → main batch PR (#2974).

format-check failure

Two files were not formatted with oxfmt:

• services/gastown/src/dos/Town.do.ts
• services/gastown/test/integration/event-cleanup.test.ts

lint failure (oxlint: no-base-to-string)

services/gastown/container/src/main.ts:36 — String(promise) stringifies a Promise as [object Object]. Replaced with event: 'unhandled_rejection' string marker. The rejected promise's value is already captured in the reason field.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (3 files)

• services/gastown/container/src/main.ts
• services/gastown/src/dos/Town.do.ts
• services/gastown/test/integration/event-cleanup.test.ts

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_{Reviewed by gpt-5.5-20260423 · 155,930 tokens}