feat(db): mesh data model — meshes, members, invites, audit log

- pgSchema "mesh" with 4 tables isolating the peer mesh domain
- Enums: visibility, transport, tier, role
- audit_log is metadata-only (E2E encryption enforced at broker/client)
- Cascade on mesh delete, soft-delete via archivedAt/revokedAt

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/src/app/[locale]/auth/join/page.tsx

@@ -0,0 +1,65 @@
+import { notFound, redirect } from "next/navigation";
+
+import { handle } from "@turbostarter/api/utils";
+
+import { pathsConfig } from "~/config/paths";
+import { api } from "~/lib/api/server";
+import { getInvitation, getSession } from "~/lib/auth/server";
+import { getMetadata } from "~/lib/metadata";
+import { Invitation } from "~/modules/organization/invitations/invitation";
+import { InvitationEmailMismatch } from "~/modules/organization/invitations/invitation-email-mismatch";
+import { InvitationExpired } from "~/modules/organization/invitations/invitation-expired";
+
+export const generateMetadata = getMetadata({
+  title: "organization:join.title",
+  description: "organization:join.description",
+});
+
+export default async function JoinPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ invitationId?: string; email?: string }>;
+}) {
+  const { invitationId, email } = await searchParams;
+
+  if (!invitationId) {
+    return notFound();
+  }
+
+  const { user } = await getSession();
+
+  if (!user) {
+    const searchParams = new URLSearchParams();
+    searchParams.set("invitationId", invitationId);
+    if (email) searchParams.set("email", email);
+    searchParams.set(
+      "redirectTo",
+      `${pathsConfig.auth.join}?${searchParams.toString()}`,
+    );
+    return redirect(`${pathsConfig.auth.login}?${searchParams.toString()}`);
+  }
+
+  const invitation = await getInvitation({ id: invitationId });
+
+  if (invitation) {
+    const { organization } = await handle(api.organizations[":id"].$get)({
+      param: {
+        id: invitation.organizationId,
+      },
+    });
+
+    if (!organization) {
+      return notFound();
+    }
+
+    return <Invitation invitation={invitation} organization={organization} />;
+  }
+
+  if (email && user.email !== email) {
+    return (
+      <InvitationEmailMismatch invitationId={invitationId} email={email} />
+    );
+  }
+
+  return <InvitationExpired />;
+}