feat(assets): support PyInstaller sys._MEIPASS frozen asset bundle path

catser/assets_manager.py

@@ -14,6 +14,7 @@ Assets managed:
 """
 
 import os
+import sys
 import re
 import json
 import math
@@ -48,9 +49,12 @@ def _download_file(url: str, dest_path: Path) -> bool:
     Downloads a file with custom User-Agent to avoid Cloudflare 403 blocks.
     Returns True on success, False otherwise.
     """
-    dest_path.parent.mkdir(parents=True, exist_ok=True)
     if dest_path.exists() and dest_path.stat().st_size > 0:
         return True
+    try:
+        dest_path.parent.mkdir(parents=True, exist_ok=True)
+    except Exception:
+        pass
 
     try:
         req = urllib.request.Request(url, headers={"User-Agent": USER_AGENT})
@@ -84,7 +88,14 @@ class AssetsManager:
     """
 
     def __init__(self, assets_dir: Optional[Path] = None, cat_width: int = 144, config: Optional[Config] = None):
-        self.assets_dir = assets_dir or (Path(__file__).parent / "assets")
+        if assets_dir:
+            self.assets_dir = assets_dir
+        elif getattr(sys, "frozen", False) and hasattr(sys, "_MEIPASS"):
+            mei_catser = Path(sys._MEIPASS) / "catser" / "assets"
+            self.assets_dir = mei_catser if mei_catser.exists() else (Path(sys._MEIPASS) / "assets")
+        else:
+            self.assets_dir = Path(__file__).parent / "assets"
+
         self.config = config or Config(cat_width=cat_width)
         self.cat_width = self.config.cat_width
         self.cat_height = self.config.cat_height
@@ -106,7 +117,10 @@ class AssetsManager:
 
     def initialize(self) -> None:
         """Downloads all missing assets and prepares raw frames."""
-        self.assets_dir.mkdir(parents=True, exist_ok=True)
+        try:
+            self.assets_dir.mkdir(parents=True, exist_ok=True)
+        except Exception:
+            pass
         self._ensure_assets_downloaded()
         self._load_raw_assets()