Implement the rSpace module architecture that enables all r-suite apps
to run as modules within a single-origin platform at rspace.online,
while each module can still deploy standalone at its own domain.
Phase 0 — Shell + Module System:
- RSpaceModule interface (shared/module.ts) with routes, metadata, hooks
- Shell HTML renderer (server/shell.ts) for wrapping module content
- Three header web components: rstack-app-switcher, rstack-space-switcher,
rstack-identity (refactored from rspace-header.ts into Shadow DOM)
- Space registry API (server/spaces.ts) — /api/spaces CRUD
- Hono-based server (server/index.ts) replacing raw Bun.serve fetch handler
while preserving all WebSocket, API, and subdomain backward compat
- Shared PostgreSQL with per-module schema isolation (rbooks, rcart, etc.)
- Vite multi-entry build: shell.js + shell.css built alongside existing entries
- Module info API: GET /api/modules returns registered module metadata
Phase 1 — Canvas Module:
- modules/canvas/mod.ts exports canvasModule as first RSpaceModule
- Canvas routes mounted at /:space/canvas with shell wrapper
- Fallback serves existing canvas.html for backward compatibility
- /:space redirects to /:space/canvas
URL structure: rspace.online/{space}/{module} (e.g. /demo/canvas)
All existing subdomain routing (*.rspace.online) preserved.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Jeff Emmett