feat: permissions, a console for everyone who manages something, and catalog management

Phase 1 of docs/console.md: permissions as resource:action strings in role
bundles at a scope; the console for anyone controlling a catalog, product
or room, with a tagged audit log scoped by permission and filters;
catalog settings (rating ceiling, upload policy), key rotation, operators,
membership (approval, invitations, bans) enforced when getting and
wearing products, delisting, suspension, and the catalogs' changes feed.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/products/[id]/page.tsx

@@ -19,7 +19,7 @@ export async function generateMetadata({ params }: { params: Promise<{ id: strin
 export default async function ProductPage({ params }: { params: Promise<{ id: string }> }) {
   const { id } = await params;
   const [me, data] = await Promise.all([getMe(), loadProduct(id)]);
-  const { product, revisions, inLibrary, stayOn, mine } = data;
+  const { product, revisions, inLibrary, stayOn, mine, available, catalogs } = data;
   const using = inLibrary ? inUse(revisions, stayOn ?? product.latest) : undefined;
 
   return (
@@ -62,10 +62,24 @@ export default async function ProductPage({ params }: { params: Promise<{ id: st
                     Remove
                   </SubmitButton>
                 </>
-              ) : (
+              ) : available ? (
                 <SubmitButton name="intent" value="get" pendingLabel="Getting…">
                   Get
                 </SubmitButton>
+              ) : (
+                <span className="text-sm text-muted-foreground">
+                  Members only. Join{" "}
+                  {catalogs.map((c, i) => (
+                    <span key={c.id}>
+                      {i > 0 && (i === catalogs.length - 1 ? " or " : ", ")}
+                      <Link href={`/catalogs/${c.id}`} className="font-medium text-foreground underline-offset-4 hover:underline">
+                        {c.name}
+                      </Link>
+                      {c.joined === "requested" && " (asked)"}
+                    </span>
+                  ))}{" "}
+                  to get it.
+                </span>
               )}
             </div>
           </ActionForm>