feat(api): add module versions endpoint

[RomeoApps]

Summary

Adds a first-class module release versions endpoint for the module marketplace:

• GET /api/modules/[slug]/versions lists published module versions newest first
• POST /api/modules/[slug]/versions lets the verified module author publish a semantic-versioned release
• syncs the module's current version / min_threatcrush_version metadata after a successful release insert
• documents the route in the module-store API docs and OpenAPI spec

Validation

• git diff --check origin/master...HEAD
• pnpm --filter @profullstack/threatcrush-web test -- 'apps/web/src/app/api/modules/[slug]/versions/__tests__/route.test.ts'\n- pnpm --filter @profullstack/threatcrush-web build\n