fix: move #+PROPERTY: STUDY_DECK_02 to top of file

Org-mode requires global file properties before the first headline.
Moved PROPERTY line above the * TODO heading in all 199 note files
and updated scaffold-notes.mjs template.

leetcode/scaffold-notes.mjs

@@ -38,8 +38,8 @@ for (const line of roadmap.split("\n")) {
     if (existsSync(filePath)) continue;
 
     const relPath = `../../roadmap.org::*${num}. ${name}`;
-    const content = `* TODO ${num}. ${name} :${diff}:
-#+PROPERTY: STUDY_DECK_02
+    const content = `#+PROPERTY: STUDY_DECK_02
+* TODO ${num}. ${name} :${diff}:
 :PROPERTIES:
 :NEETCODE: [[file:${relPath}][Roadmap]]
 :END: