feat: add prompt based hooks (#795)

Co-authored-by: Letta <noreply@letta.com>

src/cli/helpers/contextTracker.ts

@@ -22,7 +22,7 @@ export function createContextTracker(): ContextTracker {
   return {
     lastContextTokens: 0,
     contextTokensHistory: [],
-    currentTurnId: 0,
+    currentTurnId: 0, // simple in-memory counter for now
     pendingCompaction: false,
   };
 }