Add RFC 7523 (JWT Bearer Grant) support

Author: Zachary German

package-lock.json

@@ -19,18 +19,6 @@
     "mcp"
   ],
   "exports": {
-    ".": {
-      "import": "./dist/esm/index.js",
-      "require": "./dist/cjs/index.js"
-    },
-    "./client": {
-      "import": "./dist/esm/client/index.js",
-      "require": "./dist/cjs/client/index.js"
-    },
-    "./server": {
-      "import": "./dist/esm/server/index.js",
-      "require": "./dist/cjs/server/index.js"
-    },
     "./*": {
       "import": "./dist/esm/*",
       "require": "./dist/cjs/*"
@@ -70,6 +58,7 @@
     "eventsource-parser": "^3.0.0",
     "express": "^5.0.1",
     "express-rate-limit": "^7.5.0",
+    "jose": "^5.0.0",
     "pkce-challenge": "^5.0.0",
     "raw-body": "^3.0.0",
     "zod": "^3.23.8",