sync: doc upd, json parse in setvars node, fix json vars visibility

.gitattributes

@@ -0,0 +1,40 @@
+# Normalize text files by default
+* text=auto
+
+# Force LF for source/config
+*.sh     text eol=lf
+*.py     text eol=lf
+*.js     text eol=lf
+*.ts     text eol=lf
+*.jsx    text eol=lf
+*.tsx    text eol=lf
+*.css    text eol=lf
+*.scss   text eol=lf
+*.html   text eol=lf
+*.json   text eol=lf
+*.md     text eol=lf
+*.yml    text eol=lf
+*.yaml   text eol=lf
+*.toml   text eol=lf
+*.ini    text eol=lf
+*.cfg    text eol=lf
+*.txt    text eol=lf
+
+# Force CRLF for Windows scripts
+*.bat    text eol=crlf
+*.cmd    text eol=crlf
+*.ps1    text eol=crlf
+
+# Treat binaries as binary (no EOL conversions)
+*.png   -text
+*.jpg   -text
+*.jpeg  -text
+*.gif   -text
+*.webp  -text
+*.pdf   -text
+*.ico   -text
+*.woff  -text
+*.woff2 -text
+*.eot   -text
+*.ttf   -text
+*.otf   -text