refactor: вынес сервисы и ui-компоненты

- вынес token/chat/update логику в services

- вынес диалог и текст инструкции в ui

- добавил и обновил тесты для нового слоя

tests/test_auto_update_service.py

@@ -0,0 +1,50 @@
+import hashlib
+import importlib.util
+import tempfile
+import unittest
+from pathlib import Path
+
+_SPEC = importlib.util.spec_from_file_location(
+    "auto_update_service",
+    Path("services/auto_update_service.py"),
+)
+_MODULE = importlib.util.module_from_spec(_SPEC)
+_SPEC.loader.exec_module(_MODULE)
+AutoUpdateService = _MODULE.AutoUpdateService
+
+
+class AutoUpdateServiceTests(unittest.TestCase):
+    def test_extract_sha256_from_text(self):
+        digest = "a" * 64
+        text = f"{digest}  AnabasisManager-1.0.0-win.zip\n"
+        extracted = AutoUpdateService.extract_sha256_from_text(
+            text,
+            "AnabasisManager-1.0.0-win.zip",
+        )
+        self.assertEqual(extracted, digest)
+
+    def test_sha256_file(self):
+        with tempfile.TemporaryDirectory() as td:
+            path = Path(td) / "payload.bin"
+            payload = b"anabasis"
+            path.write_bytes(payload)
+            expected = hashlib.sha256(payload).hexdigest()
+            self.assertEqual(AutoUpdateService.sha256_file(str(path)), expected)
+
+    def test_build_update_script_contains_core_vars(self):
+        script = AutoUpdateService.build_update_script(
+            app_dir=r"C:\Apps\AnabasisManager",
+            source_dir=r"C:\Temp\Extracted",
+            exe_name="AnabasisManager.exe",
+            target_pid=1234,
+        )
+        script_text = Path(script).read_text(encoding="utf-8")
+        self.assertIn("set APP_DIR=", script_text)
+        self.assertIn("set SRC_DIR=", script_text)
+        self.assertIn("set EXE_NAME=", script_text)
+        self.assertIn("set TARGET_PID=", script_text)
+        self.assertIn(":rollback", script_text)
+
+
+if __name__ == "__main__":
+    unittest.main()