Feat/tui browse (#1266)

* Add interactive TUI browser command using Bubbletea v2

Adds `awesome-docker browse` to interactively explore the curated list
in a terminal UI with a category tree (left panel) and detailed resource
view (right panel). Enriches health_cache.yaml with category and
description fields so the cache is self-contained for the TUI.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Add TUI pagination, scrolloff, and fix visual overflow

Add pagination keybindings (Ctrl+D/PgDn, Ctrl+U/PgUp, g/Home, G/End)
to both tree and list panels. Implement scrolloff (4 lines) to keep
context visible around the cursor. Fix list panel overflow caused by
Unicode characters (★, ⑂) rendering wider than lipgloss measures,
which pushed the footer off-screen. Improve selection highlight
visibility with background colors.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

internal/tui/styles.go

@@ -0,0 +1,59 @@
+package tui
+
+import "charm.land/lipgloss/v2"
+
+var (
+	// Panel borders
+	activeBorderStyle = lipgloss.NewStyle().
+				Border(lipgloss.RoundedBorder()).
+				BorderForeground(lipgloss.Color("#7D56F4"))
+
+	inactiveBorderStyle = lipgloss.NewStyle().
+				Border(lipgloss.RoundedBorder()).
+				BorderForeground(lipgloss.Color("#555555"))
+
+	// Tree styles
+	treeSelectedStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#FF79C6")).Background(lipgloss.Color("#3B2D50"))
+	treeNormalStyle   = lipgloss.NewStyle().Foreground(lipgloss.Color("#CCCCCC"))
+
+	// Entry styles
+	entryNameStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#50FA7B"))
+	entryURLStyle  = lipgloss.NewStyle().Foreground(lipgloss.Color("#888888")).Italic(true)
+	entryDescStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#CCCCCC"))
+
+	// Status badge styles
+	statusHealthyStyle  = lipgloss.NewStyle().Foreground(lipgloss.Color("#50FA7B")).Bold(true)
+	statusInactiveStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#FFB86C"))
+	statusStaleStyle    = lipgloss.NewStyle().Foreground(lipgloss.Color("#F1FA8C"))
+	statusArchivedStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#FF5555")).Bold(true)
+	statusDeadStyle     = lipgloss.NewStyle().Foreground(lipgloss.Color("#666666")).Strikethrough(true)
+
+	// Selected entry
+	entrySelectedStyle = lipgloss.NewStyle().Background(lipgloss.Color("#44475A"))
+
+	// Header
+	headerStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#BD93F9")).Padding(0, 1)
+
+	// Footer
+	footerStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#666666"))
+
+	// Filter
+	filterPromptStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#FF79C6")).Bold(true)
+)
+
+func statusStyle(status string) lipgloss.Style {
+	switch status {
+	case "healthy":
+		return statusHealthyStyle
+	case "inactive":
+		return statusInactiveStyle
+	case "stale":
+		return statusStaleStyle
+	case "archived":
+		return statusArchivedStyle
+	case "dead":
+		return statusDeadStyle
+	default:
+		return lipgloss.NewStyle()
+	}
+}