feat: improve tree-sitter syntax highlighting with named nodes

- Add aliases for keywords (VAR_INPUT, BEGIN, IF, etc.) as named nodes
- Add aliases for built-in types (INT, BOOL, STRING, etc.) as type_builtin
- Add aliases for constants (TRUE, FALSE)
- Add aliases for operators (AND, OR, NOT, MOD)
- Add prefix node for # variable prefix highlighting
- Highlight FB instance names in calls
- Highlight FB parameter names as properties
- Update README with detailed syntax highlighting features
- Update .gitignore for *.wasm files

src/parser.lua

@@ -129,6 +129,10 @@ function M.extract_variables(content)
           end
         end
         local var_data_type = "unknown"
+        local var_comment = line:match("//%s*(.+)$")
+        if not var_comment then
+          var_comment = line:match("%(%*(.-)%*%)")
+        end
         if type_start then
           local type_part = line:sub(type_start + 1)
           type_part = type_part:gsub("%s*:=.*$", "")
@@ -143,6 +147,7 @@ function M.extract_variables(content)
           data_type = var_data_type,
           line = line_num,
           character = col - 1,
+          comment = var_comment,
         }
         variable_positions[var_name] = {
           line = line_num,
@@ -172,6 +177,7 @@ function M.extract_types(content)
   local brace_depth = 0
   local in_struct = false
   local pending_type_name = nil
+  local pending_comment = nil
 
   local function extract_type_name(after_colon)
     if not after_colon then return nil end
@@ -183,6 +189,11 @@ function M.extract_types(content)
   for i, line in ipairs(lines) do
     local trimmed = line:gsub("^%s+", ""):gsub("%s+$", "")
 
+    local is_comment_only = trimmed:match("^//")
+    if is_comment_only then
+      pending_comment = line:match("//%s*(.+)$")
+    end
+
     local is_type_line = trimmed:match("^TYPE") and (trimmed:match("^TYPE%s") or trimmed:match('^TYPE"') or trimmed == "TYPE")
     
     if is_type_line then
@@ -190,6 +201,9 @@ function M.extract_types(content)
       in_struct = false
       brace_depth = 0
       pending_type_name = trimmed:match('^TYPE%s+"([^"]+)') or trimmed:match("^TYPE%s+(%w+)")
+      if not pending_comment then
+        pending_comment = trimmed:match("//%s*(.+)$")
+      end
     elseif in_type_section and trimmed:match("^END_TYPE") then
       in_type_section = false
       in_struct = false
@@ -203,10 +217,12 @@ function M.extract_types(content)
           kind = "struct",
           fields = {},
           start_line = i - 1,
+          comment = pending_comment,
         }
         types[type_name_with_struct] = current_type
         in_struct = true
         pending_type_name = nil
+        pending_comment = nil
       elseif trimmed:match("^STRUCT%s*$") then
         if pending_type_name then
           current_type = {
@@ -214,9 +230,11 @@ function M.extract_types(content)
             kind = "struct",
             fields = {},
             start_line = i - 1,
+            comment = pending_comment,
           }
           types[pending_type_name] = current_type
           pending_type_name = nil
+          pending_comment = nil
         end
         in_struct = true
       elseif trimmed:match("^END_STRUCT%s*$") then
@@ -226,9 +244,14 @@ function M.extract_types(content)
         if field_name then
           local after_colon = line:match(":%s*(.+)")
           local field_type = after_colon and extract_type_name(after_colon)
+          local field_comment = line:match("//%s*(.+)$")
+          if not field_comment then
+            field_comment = line:match("%(%*(.-)%*%)")
+          end
           table.insert(current_type.fields, {
             name = field_name,
             type = field_type or "unknown",
+            comment = field_comment,
           })
         end
       elseif not in_struct and not pending_type_name then