feat: add --json flag to analyze command for non-TTY environments (#533)

* feat: add --json flag to analyze command

* feat: implement JSON output mode for analyze

* refactor: rename jsonOutput flag to jsonMode to avoid conflict

cmd/analyze/main.go

@@ -4,6 +4,7 @@ package main
 
 import (
 	"context"
+	"flag"
 	"fmt"
 	"os"
 	"os/exec"
@@ -16,6 +17,10 @@ import (
 	tea "github.com/charmbracelet/bubbletea"
 )
 
+var (
+	jsonMode = flag.Bool("json", false, "output analysis as JSON instead of TUI")
+)
+
 type dirEntry struct {
 	Name       string
 	Path       string
@@ -127,9 +132,11 @@ func (m model) inOverviewMode() bool {
 }
 
 func main() {
+	flag.Parse()
+
 	target := os.Getenv("MO_ANALYZE_PATH")
-	if target == "" && len(os.Args) > 1 {
-		target = os.Args[1]
+	if target == "" && len(flag.Args()) > 0 {
+		target = flag.Args()[0]
 	}
 
 	var abs string
@@ -148,12 +155,20 @@ func main() {
 		isOverview = false
 	}
 
+	if *jsonMode {
+		runJSONMode(abs, isOverview)
+	} else {
+		runTUIMode(abs, isOverview)
+	}
+}
+
+func runTUIMode(path string, isOverview bool) {
 	// Warm overview cache in background.
 	prefetchCtx, prefetchCancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer prefetchCancel()
 	go prefetchOverviewCache(prefetchCtx)
 
-	p := tea.NewProgram(newModel(abs, isOverview), tea.WithAltScreen())
+	p := tea.NewProgram(newModel(path, isOverview), tea.WithAltScreen())
 	if _, err := p.Run(); err != nil {
 		fmt.Fprintf(os.Stderr, "analyzer error: %v\n", err)
 		os.Exit(1)