fix: populate version in Settings → About from Tauri app config

Used getVersion() from @tauri-apps/api/app which reads the version
from tauri.conf.json (patched by CI from the git tag).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/components/common/SettingsModal.vue

@@ -271,6 +271,7 @@
 <script setup lang="ts">
 import { ref, watch, onMounted } from "vue";
 import { invoke } from "@tauri-apps/api/core";
+import { getVersion } from "@tauri-apps/api/app";
 import { open as shellOpen } from "@tauri-apps/plugin-shell";
 
 type Section = "general" | "terminal" | "vault" | "copilot" | "about";
@@ -331,6 +332,9 @@ const settings = ref({
 
 /** Load saved settings from Rust backend on mount. */
 onMounted(async () => {
+  // Populate version from Tauri app config
+  try { currentVersion.value = await getVersion(); } catch { currentVersion.value = "unknown"; }
+
   try {
     const [protocol, sidebarW, theme, fontSize, scrollback] = await Promise.all([
       invoke<string | null>("get_setting", { key: "default_protocol" }),