Add module versions API

[phucnguyen1707]

Summary

• add GET and POST /api/modules/:slug/versions for listing and publishing module release records
• require the authenticated, email-verified module author for publishing new semantic versions
• reject duplicate versions and sync module-level release metadata after publish
• document the endpoint in module docs and OpenAPI

Closes #8

Tests

• pnpm --filter @profullstack/threatcrush-web test -- apps/web/src/app/api/modules/[slug]/versions/tests/route.test.ts
• pre-commit hook: Build CLI, Next web build