feat: Add orchestration models and services for Kubernetes cluster management

- Implemented Pydantic models for Kubernetes cluster state representation in `cluster.py`.
- Created a `Resource` class for converting JSON/dict to Python objects in `resource.py`.
- Established user models and services for user management, including password hashing and JWT token generation.
- Developed application orchestration services for managing Kubernetes applications, including installation and uninstallation.
- Added cluster service for retrieving cluster status and health reports.
- Introduced node service for fetching node resource details and health status.
- Implemented user service for handling user authentication and management.

.gitignore

@@ -0,0 +1,17 @@
+
+# python
+__pycache__/
+*.py[cod]
+
+# data
+*.csv
+*.json
+*.xlsx
+*.yaml
+*.yml
+
+# env variable
+.env
+*.ini
+
+