fix: None crash in providers, _merge_deepest loop, lock-file false positives, stage() race, cache TTL, config merge, changelog indent, template check

setup.py

@@ -6,7 +6,7 @@ from setuptools import find_packages, setup
 
 setup(
     name="devgen-cli",
-    version="0.2.7",
+    version="0.2.8",
     packages=find_packages(),
     include_package_data=True,
     install_requires=[