Widens milestoneTemplate(db, moduleCode?) to resolve project.milestone_template:<CODE>
before the global project.milestone_template setting, falling back to FALLBACK_TEMPLATE.
ensureProjectMilestones now looks up the client_module's module code and resolves the
template through it, so each module can carry its own onboarding checklist as a dated
setting row instead of one hardcoded global list.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Thomas Joise