refactor(cli): guard imports with TYPE_CHECKING

Author: Cyber-Syntax

src/autotarcompress/cli/commands/backup.py

@@ -5,10 +5,13 @@
 """
 
 import logging
+from typing import TYPE_CHECKING
 
 from autotarcompress.backup_manager import BackupManager
 from autotarcompress.cli.commands.command import Command
-from autotarcompress.config import BackupConfig
+
+if TYPE_CHECKING:
+    from autotarcompress.config import BackupConfig
 
 
 class BackupCommand(Command):

src/autotarcompress/cli/commands/decrypt.py

@@ -5,11 +5,14 @@
 """
 
 import logging
+from typing import TYPE_CHECKING
 
 from autotarcompress.cli.commands.command import Command
-from autotarcompress.config import BackupConfig
 from autotarcompress.decrypt_manager import DecryptManager
 
+if TYPE_CHECKING:
+    from autotarcompress.config import BackupConfig
+
 
 class DecryptCommand(Command):
     """Command to securely decrypt backup archives using OpenSSL with PBKDF2.

src/autotarcompress/cli/commands/encrypt.py

@@ -11,11 +11,14 @@
 """
 
 import logging
+from typing import TYPE_CHECKING
 
 from autotarcompress.cli.commands.command import Command
-from autotarcompress.config import BackupConfig
 from autotarcompress.encrypt_manager import EncryptManager
 
+if TYPE_CHECKING:
+    from autotarcompress.config import BackupConfig
+
 
 class EncryptCommand(Command):
     """Concrete command to perform encryption.

src/autotarcompress/cli/commands/extract.py

@@ -5,11 +5,14 @@
 """
 
 import logging
+from typing import TYPE_CHECKING
 
 from autotarcompress.cli.commands.command import Command
-from autotarcompress.config import BackupConfig
 from autotarcompress.extract_manager import ExtractManager
 
+if TYPE_CHECKING:
+    from autotarcompress.config import BackupConfig
+
 
 class ExtractCommand(Command):
     """Command to extract tar.xz and tar.zst backup archives securely."""

src/autotarcompress/cli/commands/info.py

@@ -5,11 +5,14 @@
 """
 
 import logging
+from typing import TYPE_CHECKING
 
 from autotarcompress.cli.commands.command import Command
-from autotarcompress.config import BackupConfig
 from autotarcompress.info_manager import InfoManager
 
+if TYPE_CHECKING:
+    from autotarcompress.config import BackupConfig
+
 
 class InfoCommand(Command):
     """Command to display last backup information from backup info file."""