0.2.3 — built-in code editor, .uasset previews, new icon

- Built-in code editor: edit working-copy source files in place (Edit → textarea
  → Save) before committing, no external IDE needed. Backend write_depot opens
  the file for edit, clears read-only, writes UTF-8; confined to the client root.
- .uasset previews: pull the embedded Unreal thumbnail (PNG) server-side for both
  working copy and history; on-demand real 3D via a headless Unreal FBX export
  (commandlet mode, no editor window), temp file deleted right after — nothing
  cached on disk. Plugin content paths mapped to their mount point.
- New app icon (brand mark on a theme tile) + theme-aware in-app logo.
- Connection pill / Settings show the actual connected server (P4PORT), not the
  server's internal self-reported address.
- Fix: the "select all" checkbox no longer renders as a giant empty square when
  not everything is selected (size pinned).
- IDE picker chooses which installed editor opens code; AI replies in UI language.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/p4.ts

@@ -102,6 +102,8 @@ export const p4 = {
     if (Array.isArray(r)) return new Uint8Array(r as number[]).buffer;
     return r as ArrayBuffer;
   },
+  // built-in editor: write text back to a depot file's working copy
+  writeDepot: (depot: string, content: string) => invoke<void>("write_depot", { depot, content }),
   switchClient: (client: string) => invoke<P4Info>("p4_switch_client", { client }),
   users: () => invoke<User[]>("p4_users"),
   groups: (user = "") => invoke<{ group?: string }[]>("p4_groups", { user }),
@@ -127,6 +129,22 @@ export const p4 = {
   searchFiles: (query: string, scope = "") => invoke<{ depotFile?: string; rev?: string }[]>("p4_search_files", { query, scope }),
   reopenTo: (change: string, files: string[]) => invoke<string>("p4_reopen_to", { change, files }),
   latestChange: (scope = "") => invoke<Change | null>("p4_latest_change", { scope }),
+  // embedded Unreal .uasset thumbnail (PNG bytes), for working copy or history
+  uassetThumb: async (spec: string, historical: boolean): Promise<ArrayBuffer> => {
+    const r: unknown = await invoke("uasset_thumbnail", { spec, historical });
+    if (r instanceof ArrayBuffer) return r;
+    if (ArrayBuffer.isView(r)) return (r as ArrayBufferView).buffer as ArrayBuffer;
+    if (Array.isArray(r)) return new Uint8Array(r as number[]).buffer;
+    return r as ArrayBuffer;
+  },
+  // export a working-copy .uasset mesh to FBX via headless Unreal → real 3D
+  exportUasset3d: async (depot: string, uproject: string): Promise<ArrayBuffer> => {
+    const r: unknown = await invoke("uasset_export_3d", { depot, uproject });
+    if (r instanceof ArrayBuffer) return r;
+    if (ArrayBuffer.isView(r)) return (r as ArrayBufferView).buffer as ArrayBuffer;
+    if (Array.isArray(r)) return new Uint8Array(r as number[]).buffer;
+    return r as ArrayBuffer;
+  },
 };
 
 export interface User { User?: string; Email?: string; FullName?: string; Access?: string; Update?: string; [k: string]: unknown }