Add code style

Co-authored-by: Copilot <copilot@github.com>

lib/Md/MdParser.h

@@ -27,10 +27,10 @@ enum class BlockType : uint8_t {
 };
 
 struct ParsedLine {
-  BlockType blockType;
+  BlockType blockType = BlockType::Paragraph;
   std::vector<Span> spans;
   std::string listPrefix;   // "• " or "1. " etc.
-  uint8_t indentLevel = 0;  // Nesting depth (each 2 spaces = 1 level)
+  uint8_t indentLevel = 0;  // Nesting depth (each 4 spaces = 1 level)
 };
 
 // Parse a single raw line of markdown into block type and styled spans.