Typesafe error propagation in signal connection path

.changeset/early-numbers-build.md

@@ -0,0 +1,5 @@
+---
+"livekit-client": minor
+---
+
+Typesafe error propagation in signal connection path

.eslintrc.cjs

@@ -4,6 +4,7 @@ module.exports = {
   parserOptions: {
     project: './tsconfig.eslint.json',
   },
+  plugins: ['neverthrow'],
   rules: {
     'import/export': 'off',
     'max-classes-per-file': 'off',

package.json

@@ -60,6 +60,7 @@
     "events": "^3.3.0",
     "jose": "^6.1.0",
     "loglevel": "^1.9.2",
+    "neverthrow": "^8.2.0",
     "sdp-transform": "^2.15.0",
     "ts-debounce": "^4.0.0",
     "tslib": "2.8.1",
@@ -94,6 +95,7 @@
     "eslint-config-prettier": "10.1.8",
     "eslint-plugin-ecmascript-compat": "^3.2.1",
     "eslint-plugin-import": "2.32.0",
+    "eslint-plugin-neverthrow": "^1.1.4",
     "gh-pages": "6.3.0",
     "happy-dom": "^17.2.0",
     "jsdom": "^26.1.0",