✨ Add builtin semantic style tags

bitlogger/BitLogger_test.mbt

@@ -253,14 +253,14 @@ test "config builtin style markup ignores custom tags" {
     color_mode=ColorMode::Always,
     style_markup=StyleMarkupMode::Builtin,
     style_tags={
-      "accent": text_style(fg=Some("#4cc9f0"), bold=true),
+      "brand": text_style(fg=Some("#4cc9f0"), bold=true),
     },
   )
   let rendered = format_text(
-    Record::new(Level::Info, "<accent>custom</> <red>builtin</>"),
+    Record::new(Level::Info, "<brand>custom</> <red>builtin</>"),
     formatter=formatter.to_formatter(),
   )
-  inspect(rendered, content="<accent>custom</> \u{001b}[31mbuiltin\u{001b}[0m")
+  inspect(rendered, content="<brand>custom</> \u{001b}[31mbuiltin\u{001b}[0m")
 }
 
 test "config disabled style markup keeps raw tags" {

bitlogger/BitLogger_wbtest.mbt

@@ -141,12 +141,12 @@ test "text formatter builtin style markup mode ignores custom tags" {
     color_mode=ColorMode::Always,
     style_markup=StyleMarkupMode::Builtin,
   ).with_style_tags(
-    style_tag_registry().set_tag("accent", fg=Some("#4cc9f0"), bold=true),
+    style_tag_registry().set_tag("brand", fg=Some("#4cc9f0"), bold=true),
   )
-  let rec = record(Level::Info, "<accent>custom</> <red>builtin</>")
+  let rec = record(Level::Info, "<brand>custom</> <red>builtin</>")
   inspect(
     format_text(rec, formatter=formatter),
-    content="<accent>custom</> \u{001b}[31mbuiltin\u{001b}[0m",
+    content="<brand>custom</> \u{001b}[31mbuiltin\u{001b}[0m",
   )
 }
 
@@ -230,6 +230,35 @@ test "style tag alias can reuse builtin tags" {
   )
 }
 
+test "builtin semantic style tags are available" {
+  let formatter = text_formatter(
+    show_level=false,
+    show_target=false,
+    color_mode=ColorMode::Always,
+    style_markup=StyleMarkupMode::Builtin,
+  )
+  let rec = record(Level::Info, "<success>ok</> <warning>careful</> <danger>boom</> <muted>quiet</>")
+  inspect(
+    format_text(rec, formatter=formatter),
+    content="\u{001b}[32;1mok\u{001b}[0m \u{001b}[33;1mcareful\u{001b}[0m \u{001b}[31;1mboom\u{001b}[0m \u{001b}[90;2mquiet\u{001b}[0m",
+  )
+}
+
+test "builtin semantic style tags can still be overridden" {
+  let formatter = text_formatter(
+    show_level=false,
+    show_target=false,
+    color_mode=ColorMode::Always,
+  ).with_style_tags(
+    default_style_tag_registry().set_tag("success", fg=Some("#00ffaa"), underline=true),
+  )
+  let rec = record(Level::Info, "<success>ok</>")
+  inspect(
+    format_text(rec, formatter=formatter),
+    content="\u{001b}[38;2;0;255;170;4mok\u{001b}[0m",
+  )
+}
+
 test "text formatter template respects disabled fields" {
   let rec = record(Level::Warn, "just message", target="svc")
   let formatter = text_formatter(

bitlogger/README.mbt.md

@@ -253,6 +253,7 @@ test {
 - `color_mode` / `color_mode`: `never`, `auto`, `always`
 - `style_markup` / `style_markup`: `disabled`, `builtin`, `full`
 - inline style tags / inline 样式标签: `<red>...</>`, `<b>...</>`, `<#ff0000>...</>`, `<bg:#202020>...</>`
+- builtin semantic tags / 内置语义标签: `<accent>`, `<info>`, `<success>`, `<warning>`, `<danger>`, `<muted>`
 - runtime style tags / 运行期样式标签: `TextStyle`, `StyleTagRegistry`, `style_tag_registry()`, `default_style_tag_registry()`, `set_tag(...)`, `define_alias(...)`
 - style tag priority / 标签优先级: formatter local `style_tags` > global style tag registry > builtin tags
 - `sink.text_formatter.style_tags` / `sink.text_formatter.style_tags` 现支持最小对象映射: `fg`, `bg`, `bold`, `dim`, `italic`, `underline`

bitlogger/formatter.mbt

@@ -120,6 +120,12 @@ pub fn default_style_tag_registry() -> StyleTagRegistry {
     .set_tag("bright_magenta", fg=Some("bright_magenta"))
     .set_tag("bright_cyan", fg=Some("bright_cyan"))
     .set_tag("bright_white", fg=Some("bright_white"))
+    .set_tag("accent", fg=Some("bright_cyan"), bold=true)
+    .set_tag("info", fg=Some("cyan"))
+    .set_tag("success", fg=Some("green"), bold=true)
+    .set_tag("warning", fg=Some("yellow"), bold=true)
+    .set_tag("danger", fg=Some("red"), bold=true)
+    .set_tag("muted", fg=Some("bright_black"), dim=true)
     .set_tag("b", bold=true)
     .set_tag("dim", dim=true)
     .set_tag("i", italic=true)
@@ -442,6 +448,12 @@ fn builtin_text_style_for_tag(tag : String) -> TextStyle? {
     "bright_magenta" => Some(text_style(fg=Some("bright_magenta")))
     "bright_cyan" => Some(text_style(fg=Some("bright_cyan")))
     "bright_white" => Some(text_style(fg=Some("bright_white")))
+    "accent" => Some(text_style(fg=Some("bright_cyan"), bold=true))
+    "info" => Some(text_style(fg=Some("cyan")))
+    "success" => Some(text_style(fg=Some("green"), bold=true))
+    "warning" => Some(text_style(fg=Some("yellow"), bold=true))
+    "danger" => Some(text_style(fg=Some("red"), bold=true))
+    "muted" => Some(text_style(fg=Some("bright_black"), dim=true))
     "b" => Some(text_style(bold=true))
     "dim" => Some(text_style(dim=true))
     "i" => Some(text_style(italic=true))