refactor: share llm decision types

shared/utils/openaiDecision.ts

@@ -1,19 +1,5 @@
 // utils/openaiDecision.ts
-export interface LLMDecisionInput {
-    state_id: string
-    state: any
-    candidates: Array<{ id: string; state: any }>
-    variables: Record<string, any>
-    flags: Record<string, any>
-    pilot_utterance: string
-}
-
-export interface LLMDecision {
-    next_state: string
-    updates?: Record<string, any>
-    flags?: Record<string, any>
-    controller_say_tpl?: string
-}
+import type { LLMDecision, LLMDecisionInput } from '../types/llm'
 
 /** Client-seitig: ruft den Backend-Endpunkt auf */
 export async function decideNextStateLLM(input: LLMDecisionInput): Promise<LLMDecision> {