fix(rcal): seed sample data for all spaces, not just demo

Auto-seed calendar sources and events on first visit to any space's
rcal page, and during space creation via seedTemplate hooks.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

modules/rcal/mod.ts

@@ -842,6 +842,8 @@ routes.get("/api/context/:tool", async (c) => {
 routes.get("/", (c) => {
 	const space = c.req.param("space") || "demo";
 	const dataSpace = c.get("effectiveSpace") || space;
+	// Seed sample data for any space that has no events yet
+	seedDemoIfEmpty(dataSpace);
 	return c.html(renderShell({
 		title: `${space} — Calendar | rSpace`,
 		moduleId: "rcal",

server/spaces.ts

@@ -176,6 +176,17 @@ export async function createSpace(opts: CreateSpaceOpts): Promise<CreateSpaceRes
 		console.error(`[createSpace:${source}] Template seeding failed for ${slug}:`, e);
 	}
 
+	// Seed module-specific demo data (calendar events, sample tasks, etc.)
+	for (const mod of getAllModules()) {
+		if (mod.seedTemplate) {
+			try {
+				mod.seedTemplate(slug);
+			} catch (e) {
+				console.error(`[createSpace:${source}] Module ${mod.id} seedTemplate failed for ${slug}:`, e);
+			}
+		}
+	}
+
 	console.log(`[createSpace:${source}] Created space: ${slug}`);
 	return { ok: true, slug, name, visibility, ownerDID };
 }