Add starter pack opt-out UI

lexicons/app/bsky/graph/defs.json

@@ -100,6 +100,11 @@
         "subject": {
           "ref": "app.bsky.actor.defs#profileView",
           "type": "ref"
+        },
+        "subjectOptedOut": {
+          "type": "boolean",
+          "const": true,
+          "description": "Set to true when the subject has opted out of appearing in the reference list. Only set when the viewer owns the list."
         }
       }
     },
@@ -228,6 +233,11 @@
         "blocked": {
           "type": "string",
           "format": "at-uri"
+        },
+        "referenceListOptOut": {
+          "type": "string",
+          "format": "at-uri",
+          "description": "The authenticated viewer's app.bsky.graph.referencelistoptout record URI for this reference list. Only set for reference lists. A client can delete this record to undo the opt-out."
         }
       }
     },

lexicons/app/bsky/graph/referencelistoptout.json

@@ -0,0 +1,30 @@
+{
+  "id": "app.bsky.graph.referencelistoptout",
+  "defs": {
+    "main": {
+      "key": "tid",
+      "type": "record",
+      "record": {
+        "type": "object",
+        "required": [
+          "subject",
+          "createdAt"
+        ],
+        "properties": {
+          "subject": {
+            "type": "string",
+            "format": "at-uri",
+            "description": "Canonical, DID-based AT URI of the app.bsky.graph.list record from which the author requests omission."
+          },
+          "createdAt": {
+            "type": "string",
+            "format": "datetime"
+          }
+        }
+      },
+      "description": "Record requesting that its author be omitted from the public presentation of a reference list. This record is only enforced when the subject list's current purpose is app.bsky.graph.defs#referencelist. AppView indexes at most one record per actor and list pair, and ignores duplicate records."
+    }
+  },
+  "$type": "com.atproto.lexicon.schema",
+  "lexicon": 1
+}