chore: pin Node 22 release runtime

.github/workflows/publish.yml

@@ -25,7 +25,7 @@ jobs:
 
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020
         with:
-          node-version-file: package.json
+          node-version-file: .nvmrc
           cache: npm
           registry-url: https://registry.npmjs.org
 

.nvmrc

@@ -0,0 +1 @@
+22.19.0

README.md

@@ -18,7 +18,7 @@ Local web UI for the [oh-my-pi (omp) coding agent](https://github.com/can1357/oh
 ## Requirements
 
 - [omp](https://github.com/can1357/oh-my-pi) installed and on your `PATH` (or point `OMP_WEB_OMP_BIN` at the binary)
-- Node.js 22.19.0 or newer (`node --version`)
+- Node.js 22.19.0 (`nvm use`; `node --version`)
 
 ## Quick Start