新增: u-tabs 初始版本

Go TUI 项目启动器，基于 bubbletea v2 + lipgloss v2。
支持分组 Tab、多选启动、编号跳转、Windows Terminal 集成。

go.mod

@@ -0,0 +1,27 @@
+module u-tabs
+
+go 1.26
+
+require (
+	charm.land/bubbletea/v2 v2.0.2
+	charm.land/lipgloss/v2 v2.0.2
+	gopkg.in/yaml.v3 v3.0.1
+)
+
+require (
+	github.com/charmbracelet/colorprofile v0.4.2 // indirect
+	github.com/charmbracelet/ultraviolet v0.0.0-20260205113103-524a6607adb8 // indirect
+	github.com/charmbracelet/x/ansi v0.11.6 // indirect
+	github.com/charmbracelet/x/term v0.2.2 // indirect
+	github.com/charmbracelet/x/termios v0.1.1 // indirect
+	github.com/charmbracelet/x/windows v0.2.2 // indirect
+	github.com/clipperhouse/displaywidth v0.11.0 // indirect
+	github.com/clipperhouse/uax29/v2 v2.7.0 // indirect
+	github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
+	github.com/mattn/go-runewidth v0.0.21 // indirect
+	github.com/muesli/cancelreader v0.2.2 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sys v0.42.0 // indirect
+)