Add OutputPath type to RSpaceModule so each module declares what content
types it produces (e.g. notebooks, routes, campaigns). Auto-generate
browsable list pages at /:space/:moduleId/:path that render a card grid
inside the standard shell, fetching items from the module's API.
Declares outputPaths across 23 modules (rwallet/rinbox skipped).
Move campaign demo from standalone campaign-demo space to
/rsocials/campaign route with a dedicated timeline view and
/api/campaigns endpoint.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>