fix: restore Python/C++ as TODO sub-headings in roadmap

Move CPP and PYTHON back to *** TODO sub-headings instead of
properties drawer entries. Remove [My Solution] from Notes links.

leetcode/extract.mjs

@@ -238,14 +238,17 @@ function buildOrg(sortedNodes, problemsByTopic) {
       lines.push(`** TODO ${num}. ${p.name} :${tag}:`);
       lines.push(`:PROPERTIES:`);
       lines.push(`:LEETCODE: [[${lcUrl}][Problem]]`);
-      lines.push(`:CPP:      [[${GITHUB_SOLUTIONS}cpp/${p.code}.cpp][Solution]]`);
-      lines.push(`:PYTHON:   [[${GITHUB_SOLUTIONS}python/${p.code}.py][Solution]]`);
       if (p.video)
         lines.push(
           `:VIDEO:    [[https://youtube.com/watch?v=${p.video}][Watch]]`
         );
       lines.push(`:END:`);
-      lines.push(`Notes: [[${notesFile}][My Solution]]`);
+      lines.push("");
+      lines.push(`*** TODO Python`);
+      lines.push(`- [[${GITHUB_SOLUTIONS}python/${p.code}.py][${p.code}.py]]`);
+      lines.push(`*** TODO C++`);
+      lines.push(`- [[${GITHUB_SOLUTIONS}cpp/${p.code}.cpp][${p.code}.cpp]]`);
+      lines.push(`Notes: [[${notesFile}]]`);
     }
     lines.push("");
   }