🎉 init: scaffold tsl playbook

.gitattributes

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+# Ensure all text files use UTF-8 (by convention) and LF line endings.
+# Line endings are normalized to LF in the repo and checked out as LF,
+# regardless of OS/core.autocrlf settings.
+
+# Default: detect text automatically, enforce LF on checkout/commit.
+* text=auto eol=lf
+
+# Explicit text types in this repo.
+*.tsl   text eol=lf
+*.tsf   text eol=lf
+*.md    text eol=lf
+*.txt   text eol=lf
+*.json  text eol=lf
+*.yml   text eol=lf
+*.yaml  text eol=lf
+*.toml  text eol=lf
+*.ini   text eol=lf
+*.cfg   text eol=lf
+*.xml   text eol=lf
+*.csv   text eol=lf
+*.sh    text eol=lf
+
+# Binary files (no line-ending conversion).
+*.png   binary
+*.jpg   binary
+*.jpeg  binary
+*.gif   binary
+*.ico   binary
+*.pdf   binary
+*.zip   binary
+*.7z    binary
+*.gz    binary
+*.tar   binary
+*.exe   binary