Switch datetime handling, var handling to corelibs libraries

Use external corelib libraries for datetime handling and var handling enum base.

pyproject.toml

@@ -6,12 +6,20 @@ description = "Collection of utils for Python scripts"
 readme = "README.md"
 requires-python = ">=3.13"
 dependencies = [
+    "corelibs-datetime>=1.0.1",
+    "corelibs-enum-base>=1.0.0",
+    "corelibs-var>=1.0.0",
     "cryptography>=46.0.3",
     "jmespath>=1.0.1",
     "jsonpath-ng>=1.7.0",
     "psutil>=7.0.0",
     "requests>=2.32.4",
 ]
+
+# MARK: build system
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
 # set this to disable publish to pypi (pip)
 # classifiers = ["Private :: Do Not Upload"]
 
@@ -21,10 +29,10 @@ name = "opj-pypi"
 url = "https://git.egplusww.jp/api/packages/PyPI/pypi/simple/"
 publish-url = "https://git.egplusww.jp/api/packages/PyPI/pypi"
 
-# MARK: build system
-[build-system]
-requires = ["hatchling"]
-build-backend = "hatchling.build"
+[tool.uv.sources]
+corelibs-enum-base = { index = "opj-pypi" }
+corelibs-datetime = { index = "opj-pypi" }
+corelibs-var = { index = "opj-pypi" }
 
 [dependency-groups]
 dev = [