feat: big title

backend/uframe/parser.py

@@ -19,6 +19,7 @@ from uframe.ir import (
     Gauge, Sparkline, Status, Table, TextSpan,
     Form, Field, Password, Radio, Checkbox, FormButton,
     Let, Source, IfBlock, ForLoop, CacheControl, OnSubmit, StateDecl,
+    BigTitle,
     ComponentDef, ComponentUse,
     SourceType,
     BorderWeight, HeadingLevel, DividerStyle, ListStyle, Align, Style,
@@ -426,6 +427,11 @@ def _parse_line(keyword: str, args: list[str], line_num: int) -> IRNode:
         content = " ".join([keyword] + args)
         return Text(content=content, source_line=line_num)
 
+    elif keyword == "bigtitle":
+        text = args[0] if args else ""
+        font = args[1] if len(args) > 1 else "block"
+        return BigTitle(text=text, font=font, source_line=line_num)
+
     elif keyword == "theme":
         # theme "name" — sets the page theme (handled as _StyleDirective on Page)
         theme_name = args[0] if args else "default"