Enforce LF endings for shell scripts

.gitattributes

@@ -0,0 +1,18 @@
+# Ensure shell scripts always use LF line endings
+*.sh text eol=lf
+
+# Go files should use LF
+*.go text eol=lf
+
+# Markdown files should use LF
+*.md text eol=lf
+
+# YAML files should use LF
+*.yml text eol=lf
+*.yaml text eol=lf
+
+# JSON files should use LF
+*.json text eol=lf
+
+# Default behavior for text files
+* text=auto