Use protopiler for protocol buffers

Co-authored-by: Jamie Kyle <jamie@signal.org>

codemods/protopiler-migration/01-remove-finish.js

@@ -0,0 +1,35 @@
+// Copyright 2026 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+export default function transform() {
+  return {
+    visitor: {
+      CallExpression(path) {
+        const { node } = path;
+        if (node.arguments.length !== 0) {
+          return;
+        }
+        if (node.callee.type !== 'MemberExpression') {
+          return;
+        }
+        const { object, property } = node.callee;
+        if (object.type !== 'CallExpression') {
+          return;
+        }
+
+        if (property.type !== 'Identifier' || property.name !== 'finish') {
+          return;
+        }
+
+        if (
+          object.callee.type !== 'MemberExpression' ||
+          object.callee.property.type !== 'Identifier' ||
+          object.callee.property.name !== 'encode'
+        ) {
+          return;
+        }
+
+        path.replaceWith(object);
+      },
+    },
+  };
+}