Mobile sidenav scrim + drawer elevation + z-index tokens

apps/website/content/docs/chat/api/api-docs.json

@@ -3411,6 +3411,28 @@
       }
     ]
   },
+  {
+    "name": "ChatSidenavScrimComponent",
+    "kind": "class",
+    "description": "Backdrop scrim for chat-sidenav's drawer mode, rendered as a sibling of\n<chat-sidenav> so its z-index sits cleanly between the page content\nand the drawer host (escapes the drawer host's stacking context).\n\nUsage:\n  <chat-sidenav-scrim [open]=\"drawerOpen()\" (close)=\"drawerOpen.set(false)\" />\n  <chat-sidenav [(open)]=\"drawerOpen\" ...></chat-sidenav>",
+    "params": [],
+    "examples": [],
+    "properties": [
+      {
+        "name": "close",
+        "type": "OutputEmitterRef<void>",
+        "description": "Fires when the user clicks the backdrop.",
+        "optional": false
+      },
+      {
+        "name": "open",
+        "type": "InputSignal<boolean>",
+        "description": "When true, render the backdrop button covering the viewport.",
+        "optional": false
+      }
+    ],
+    "methods": []
+  },
   {
     "name": "ChatStreamingMdComponent",
     "kind": "class",