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>

packages/ui/mobile/src/components/avatar.tsx

@@ -0,0 +1,47 @@
+import * as AvatarPrimitive from "@rn-primitives/avatar";
+import * as React from "react";
+
+import { cn } from "@turbostarter/ui";
+
+function Avatar({
+  className,
+  ...props
+}: AvatarPrimitive.RootProps & React.RefAttributes<AvatarPrimitive.RootRef>) {
+  return (
+    <AvatarPrimitive.Root
+      className={cn(
+        "relative flex size-9 shrink-0 overflow-hidden rounded-full",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+function AvatarImage({
+  className,
+  ...props
+}: AvatarPrimitive.ImageProps & React.RefAttributes<AvatarPrimitive.ImageRef>) {
+  return (
+    <AvatarPrimitive.Image
+      className={cn("aspect-square size-full", className)}
+      {...props}
+    />
+  );
+}
+
+function AvatarFallback({
+  className,
+  ...props
+}: AvatarPrimitive.FallbackProps &
+  React.RefAttributes<AvatarPrimitive.FallbackRef>) {
+  return (
+    <AvatarPrimitive.Fallback
+      className={cn(
+        "bg-muted border-border flex size-full flex-row items-center justify-center rounded-full border",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+export { Avatar, AvatarFallback, AvatarImage };