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/PermissionModal.svelte

@@ -1,22 +1,17 @@
 <script lang="ts">
   import { invoke } from "@tauri-apps/api/core";
   import { get } from "svelte/store";
-  import { claudeStore, hasPermissionPending } from "$lib/stores/claude";
+  import { claudeStore } from "$lib/stores/claude";
   import { characterState } from "$lib/stores/character";
   import type { PermissionRequest } from "$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";
 
-  let isVisible = $state(false);
   let permission: PermissionRequest | null = $state(null);
   let grantedToolsList: string[] = $state([]);
   let workingDirectory = $state("");
 
-  hasPermissionPending.subscribe((pending) => {
-    isVisible = pending;
-  });
-
   claudeStore.pendingPermission.subscribe((perm) => {
     permission = perm;
     if (perm) {
@@ -54,6 +49,9 @@
           throw new Error("No active conversation");
         }
 
+        // Prevent stats reset on reconnection
+        setSkipNextGreeting(true);
+
         await invoke("stop_claude", { conversationId });
 
         // Small delay to ensure clean shutdown
@@ -125,7 +123,7 @@ Please continue where we left off and retry that action now that you have permis
   }
 
   function handleKeydown(event: KeyboardEvent) {
-    if (!isVisible || !permission) return;
+    if (!permission) return;
 
     if (event.key === "Enter") {
       event.preventDefault();
@@ -139,7 +137,7 @@ Please continue where we left off and retry that action now that you have permis
 
 <svelte:window onkeydown={handleKeydown} />
 
-{#if isVisible && permission}
+{#if permission}
   <div
     class="permission-overlay fixed inset-0 bg-black/70 flex items-center justify-center z-50 backdrop-blur-sm"
   >