Enhance device interface structure and update dependencies

- Added `.idea` to `.gitignore` to exclude IDE configuration files.
- Introduced `pydantic` version `2.12.5` as a dependency in `pyproject.toml` and `uv.lock`.
- Added `annotated-types` as a new dependency in `uv.lock`.
- Refactored `BaseDevice` class to include abstract methods for device properties and loading templates.
- Created `Interfaces`, `System`, `Vlans`, and `Device` models in a new `contract.py` file for structured data handling.
- Updated `Mikrotik` class to implement the new `BaseDevice` structure and added a template loading method.

oxi/interfaces/base.py

@@ -1 +1,37 @@
-class BaseDevice: ...
+from abc import ABC, abstractmethod
+from pathlib import Path
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from oxi.interfaces.contract import Interfaces, System, Vlans
+
+
+class BaseDevice(ABC):
+    @property
+    @abstractmethod
+    def template(self) -> str:
+        """
+        :return:
+        """
+
+    @abstractmethod
+    def vlans(self) -> "Vlans": ...
+
+    @abstractmethod
+    def interfaces(self) -> "Interfaces": ...
+
+    @abstractmethod
+    def system(self) -> "System": ...
+
+    def __load_template(self):
+        path = Path(__file__).parent / "template" / self.template
+        if not path.exists():
+            raise FileNotFoundError(f"Template {self.template} not found")
+        return path.read_text(encoding="utf-8")
+
+    def run(self):
+        self.load = self.__load_template()
+        return self.load
+
+
+BaseDevice()