chore(deps): brand@1.0 + sandbox-ui@0.72 + ui@11

Bring agent-app up to the shipped brand ecosystem (was brand@0.6 / sandbox-ui@0.60
/ ui@4, 4 majors stale). Matches the agent-dev-container sandbox/web reference
impl. Import surface is limited to AgentComposer, so ui@11's breaking changes
(ChatInput/AssistantRunShell removal, canonical composer) don't affect the build.
Typecheck + tsup build verified clean.

Author: drewstone

package.json

@@ -352,10 +352,10 @@
     "@tangle-network/agent-interface": "^0.15.0",
     "@tangle-network/agent-knowledge": "^1.7.0",
     "@tangle-network/agent-runtime": "^0.79.3",
-    "@tangle-network/brand": "^0.6.0",
+    "@tangle-network/brand": "^1.0.0",
     "@tangle-network/sandbox": "^0.9.7",
-    "@tangle-network/sandbox-ui": "^0.60.0",
-    "@tangle-network/ui": "^4.1.0",
+    "@tangle-network/sandbox-ui": "^0.72.0",
+    "@tangle-network/ui": "^11.0.0",
     "@testing-library/dom": "^10.4.1",
     "@xyflow/react": "^12.0.0",
     "@testing-library/react": "^16.3.2",
@@ -387,9 +387,9 @@
     "@tangle-network/agent-interface": ">=0.15.0",
     "@tangle-network/agent-knowledge": ">=1.7.0",
     "@tangle-network/agent-runtime": ">=0.79.3",
-    "@tangle-network/brand": ">=0.6.0",
+    "@tangle-network/brand": ">=1.0.0",
     "@tangle-network/sandbox": ">=0.9.7",
-    "@tangle-network/sandbox-ui": ">=0.60.0",
+    "@tangle-network/sandbox-ui": ">=0.72.0",
     "@xyflow/react": ">=12.0.0",
     "drizzle-orm": ">=0.36",
     "konva": ">=9",