Consolidate URL routing so all rApps flow through
{space}.rspace.online/{moduleId} as the canonical URL pattern.
- Subdomain handler now routes all modules (not just canvas)
- Standalone domains (rvote.online etc) → 301 redirect to canonical
- Add shared/url-helpers.ts for subdomain-aware URL generation
- Update app-switcher, space-switcher, identity, tab-bar navigation
- Shell inline scripts use __rspaceNavUrl for all URL generation
- Path-based rspace.online/:space/:moduleId still works as fallback
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
