Fixed the missing subpath export

Author: ericallam

packages/build/package.json

@@ -23,6 +23,7 @@
     "exports": {
       "./package.json": "./package.json",
       ".": "./src/index.ts",
+      "./extensions": "./src/extensions/index.ts",
       "./extensions/core": "./src/extensions/core.ts",
       "./extensions/prisma": "./src/extensions/prisma.ts",
       "./extensions/audioWaveform": "./src/extensions/audioWaveform.ts",
@@ -68,6 +69,17 @@
         "default": "./dist/commonjs/index.js"
       }
     },
+    "./extensions": {
+      "import": {
+        "@triggerdotdev/source": "./src/extensions/index.ts",
+        "types": "./dist/esm/extensions/index.d.ts",
+        "default": "./dist/esm/extensions/index.js"
+      },
+      "require": {
+        "types": "./dist/commonjs/extensions/index.d.ts",
+        "default": "./dist/commonjs/extensions/index.js"
+      }
+    },
     "./extensions/core": {
       "import": {
         "@triggerdotdev/source": "./src/extensions/core.ts",