fix: restore plugin validation workflow

Track the npm lockfile and modernize the GitHub Actions workflow so validation installs dependencies reliably and stays aligned with the Node 24 transition.

Made-with: Cursor

Author: jesseoue

.github/workflows/validate-plugin.yml

@@ -23,15 +23,17 @@ jobs:
   validate:
     name: Validate package structure
     runs-on: ubuntu-latest
+    env:
+      FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
-          node-version: "20"
+          node-version: "22"
 
       - name: Install dependencies
         run: npm ci

.gitignore

@@ -1,2 +1,3 @@
 node_modules/
 .DS_Store
+!package-lock.json

README.md

@@ -55,15 +55,34 @@ The broader REST API and OpenAPI snapshot include additional surfaces, but this
 
 ## Quick Start
 
-Install the plugin from GitHub today, or from the Cursor marketplace after approval.
+You can use this plugin in three ways:
+
+- install it from the Cursor marketplace after approval
+- import the repository into a Cursor team marketplace for internal distribution
+- symlink it locally for development and pre-submission testing
+
+### Install from the marketplace
+
+After approval, install the plugin from the marketplace panel in Cursor.
+
+### Import as a team marketplace
+
+For private team distribution in Cursor:
+
+1. Open `Dashboard -> Settings -> Plugins`.
+2. In `Team Marketplaces`, click `Import`.
+3. Paste `https://github.com/LeadMagic/leadmagic-cursor-plugin`.
+4. Review the parsed plugin and save the marketplace.
+
+### Install locally for testing
 
 ### 1. Set your API key
 
 ```bash
 export LEADMAGIC_API_KEY="your_api_key_here"
 ```
 
-### 2. Install the plugin locally for testing
+### 2. Link the repository into Cursor
 
 If you are using this repository locally: