AX-1603 - Enforce lowercase @jfrog/agent-guard scope (case-sensitivity fix) (#19)

## AX-1603 — Fix `@jfrog/agent-guard` case-sensitivity

Jira: https://jfrog-int.atlassian.net/browse/AX-1603

Users were ending up with two casings of the install command —
`@jfrog/agent-guard` vs `@JFrog/agent-guard`. npm scopes are
case-sensitive and the published package is the lowercase
`@jfrog/agent-guard`; the capitalized brand variant points at a
different/nonexistent scope. The templates already hard-code lowercase,
but the agents (Claude/Cursor/Copilot) sometimes auto-capitalize the
"JFrog" brand when generating the command.

### Change
- Add an explicit **Key Rules** entry: always write the scope lowercase
as `@jfrog/agent-guard`, never `@JFrog/agent-guard`.
- Bump the plugin patch version.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: YoniMelki

.cursor-plugin/marketplace.json

@@ -6,7 +6,7 @@
   },
   "metadata": {
     "description": "JFrog Platform plugins for Cursor",
-    "version": "0.5.2",
+    "version": "0.5.3",
     "pluginRoot": "plugins"
   },
   "plugins": [

plugins/jfrog/.cursor-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "jfrog",
   "displayName": "JFrog Platform",
-  "version": "0.5.2",
+  "version": "0.5.3",
   "description": "JFrog Platform integration with MCP, security skills, supply-chain best practices, and JFrog Agent Guard governance for adding, removing, and listing MCP servers.",
   "author": {
     "name": "JFrog",

plugins/jfrog/templates/jfrog-mcp-management.md

@@ -365,6 +365,12 @@ the display name.
 
 ## Key Rules
 
+- **Package scope is case-sensitive — ALWAYS write it lowercase as
+  `@jfrog/agent-guard`, NEVER `@JFrog/agent-guard`.** npm scopes are
+  case-sensitive; the published package is the lowercase
+  `@jfrog/agent-guard`. Capitalizing the brand (`@JFrog`) points at a
+  different/nonexistent scope and breaks the command. Use the exact
+  lowercase string in every command and config entry.
 - **`npx` arg order:** `--yes`, `--registry <URL>`,
   `@jfrog/agent-guard`, then agent guard flags. Both `--yes` and
   `--registry` MUST precede the package name or `npx` falls back to