Add Bubble Tea TUI with interactive treemap

Cell canvas renderer with frame cache and a perceptual 256-colour
quantizer; responsive geometry (large/medium/small/too-small);
squarified treemap with nested previews, LOD grouping, category
colouring and adaptive labels; spatial arrow navigation with stable
NodeID selection; zoom and breadcrumbs; modal system (info, help,
confirm, save); list, file-type, top-N, scan-info, duplicate and
comparison views; live search/filter; mouse support; move-to-trash.

internal/app/app.go

@@ -36,6 +36,7 @@ type Config struct {
 	Theme        string
 	SizeMode     inventory.SizeMode
 	Mouse        bool
+	Color        string
 	Settings     config.Settings
 	Stdout       io.Writer
 	Stderr       io.Writer

internal/app/modes.go

@@ -2,17 +2,22 @@ package app
 
 import (
 	"context"
-	"errors"
 	"fmt"
 
 	"github.com/andydixon/mapsize/internal/duplicate"
 	"github.com/andydixon/mapsize/internal/inventory"
+	"github.com/andydixon/mapsize/internal/scan"
 	"github.com/andydixon/mapsize/internal/snapshot"
 	"github.com/andydixon/mapsize/internal/textutil"
+	"github.com/andydixon/mapsize/internal/tui"
 )
 
-func runTUI(*Config) error {
-	return errors.New("the interactive UI is not built yet; use --no-ui, --top, --json or --csv")
+func runTUI(cfg *Config) error {
+	return tui.Run(tui.Options{
+		ReadOnly: cfg.ReadOnly, Theme: cfg.Theme, SizeMode: cfg.SizeMode, Mouse: cfg.Mouse, Color: cfg.Color,
+		Save: cfg.Save, Settings: cfg.Settings,
+		Start: func(ctx context.Context) (*scan.Scanner, *inventory.Tree, error) { return startSource(ctx, cfg) },
+	})
 }
 
 func loadSnapshot(path string) (*inventory.Tree, error) { return snapshot.LoadFile(path) }