chore: add .gitattributes for consistent LF line endings

Author: RedjiJB

.gitattributes

@@ -0,0 +1,29 @@
+# Git line ending normalization for IT-Stack repos
+* text=auto eol=lf
+
+*.md        text eol=lf
+*.yml       text eol=lf
+*.yaml      text eol=lf
+*.json      text eol=lf
+*.sh        text eol=lf
+*.ps1       text eol=lf
+*.py        text eol=lf
+*.js        text eol=lf
+*.ts        text eol=lf
+*.xml       text eol=lf
+*.conf      text eol=lf
+*.env       text eol=lf
+Makefile    text eol=lf
+Dockerfile  text eol=lf
+
+*.png       binary
+*.jpg       binary
+*.jpeg      binary
+*.gif       binary
+*.ico       binary
+*.pdf       binary
+*.zip       binary
+*.tar.gz    binary
+*.key       binary
+*.p12       binary
+*.pfx       binary