docs: clarify SF CLI prerequisite requirement in README

- Added Prerequisites section stating SF CLI must be installed
- Provides installation link and verification command
- Clarifies difference between user prerequisites and dev dependencies
- Removed @salesforce/cli from devDependencies (now user prerequisite)
- Updated yarn.lock to reflect dependency changes

Author: lesya7

README.md

@@ -6,6 +6,14 @@ This plugin is bundled with the [Salesforce CLI](https://developer.salesforce.co
 
 We always recommend using the latest version of these commands bundled with the CLI, however, you can install a specific version or tag if needed.
 
+## Prerequisites
+
+**Salesforce CLI Required**
+This plugin requires the Salesforce CLI to be installed and configured on your system. The SF CLI must be installed before using this plugin.
+
+- Install the Salesforce CLI: https://developer.salesforce.com/tools/sfdxcli
+- Verify installation: `sf --version`
+
 ## Install
 
 ```bash

package.json

@@ -25,7 +25,6 @@
   },
   "devDependencies": {
     "@oclif/plugin-command-snapshot": "^5.3.3",
-    "@salesforce/cli": "^2.96.4",
     "@salesforce/cli-plugins-testkit": "^5.3.39",
     "@salesforce/dev-scripts": "^11.0.2",
     "@salesforce/plugin-command-reference": "^3.1.58",