feat: enable for LLM & MCP Proxy API (#22)

Author: michel-barret

README.md

@@ -53,6 +53,7 @@ The `ai-prompt-guard-rails` policy can be applied to the following API types and
 ### Compatible API types
 
 * `PROXY`
+* `LLM PROXY`
 
 ### Supported flow phases:
 

src/main/resources/plugin.properties

@@ -5,4 +5,5 @@ description=${project.description}
 class=io.gravitee.policy.ai.prompt.guard.rails.AiPromptGuardRailsPolicy
 type=policy
 category=ai
-proxy=REQUEST
+proxy=REQUEST
+llm_proxy=REQUEST