feat: store packaged user data under data directory

tests/test_packaging.py

@@ -7,12 +7,14 @@ class PackagingTests(unittest.TestCase):
     def read_text(self, relative_path):
         return (REPO_ROOT / relative_path).read_text(encoding="utf-8")
 
-    def test_frozen_entrypoint_uses_exe_directory(self):
+    def test_frozen_entrypoint_keeps_program_and_data_paths_separate(self):
         main_py = self.read_text("main.py")
+        gui_init = self.read_text("app/gui/__init__.py")
 
         self.assertIn('getattr(sys, "frozen", False)', main_py)
         self.assertIn("sys.executable", main_py)
-        self.assertIn("os.chdir(PROJECT_ROOT)", main_py)
+        self.assertNotIn("os.chdir(PROJECT_ROOT)", main_py)
+        self.assertIn("appconfig.prepare_data_dir()", gui_init)
 
     def test_pyinstaller_spec_uses_onedir_without_local_datas(self):
         spec = self.read_text("cmshopee.spec")
@@ -37,6 +39,7 @@ class PackagingTests(unittest.TestCase):
             "logs",
             "prompts",
             "title_prompt.txt",
+            "data",
         ):
             self.assertIn(token, script)