fix(spaces): show username instead of truncated DID in members list

GET /api/spaces/:slug/members now enriches entries missing displayName
by looking up the username from EncryptID (/api/internal/user-email).
Old member records (particularly owners created before displayName was
passed to setMember) were showing as 'jAV6y4tg8UbKJEkN0npv...' in the
space settings Members tab.

server/spaces.ts

@@ -749,11 +749,27 @@ spaces.get("/:slug/members", async (c) => {
 		return c.json({ error: "Access denied" }, 403);
 	}
 
-	const members = Object.values(data.members || {}).map((m) => ({
+	const rawMembers = Object.values(data.members || {}).map((m) => ({
 		...m,
 		isOwner: m.did === data.meta.ownerDID,
 	}));
 
+	// Enrich members missing displayName by looking up username from EncryptID.
+	// Historical records (esp. owners) didn't store it; without this the UI falls
+	// back to a truncated DID.
+	const members = await Promise.all(rawMembers.map(async (m) => {
+		if (m.displayName) return m;
+		try {
+			const r = await fetch(`${ENCRYPTID_URL}/api/internal/user-email/${encodeURIComponent(m.did)}`);
+			if (!r.ok) return m;
+			const info = await r.json() as { username?: string | null; displayName?: string | null };
+			const name = info.displayName || info.username;
+			return name ? { ...m, displayName: name } : m;
+		} catch {
+			return m;
+		}
+	}));
+
 	return c.json({ members });
 });