fix: ensure permission/stats persist until explicit disconnect (#110)

Also includes cached tokens in cost calculations to provide more accurate billing estimates.

Reviewed-on: #110
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/lib/components/UserQuestionModal.svelte

@@ -5,7 +5,7 @@
   import { claudeStore, hasQuestionPending } from "$lib/stores/claude";
   import { characterState } from "$lib/stores/character";
   import type { UserQuestionEvent } from "$lib/types/messages";
-  import { updateDiscordRpc } from "$lib/tauri";
+  import { updateDiscordRpc, setSkipNextGreeting } from "$lib/tauri";
   import { conversationsStore } from "$lib/stores/conversations";
   import { configStore } from "$lib/stores/config";
 
@@ -89,6 +89,9 @@
     claudeStore.clearQuestion();
 
     try {
+      // Prevent stats reset on reconnection
+      setSkipNextGreeting(true);
+
       await invoke("stop_claude", { conversationId });
 
       await new Promise((resolve) => setTimeout(resolve, 500));