working multisession web linux terminal

internals/session.go

@@ -3,6 +3,7 @@ package internals
 import (
 	"crypto/rand"
 	"fmt"
+	"os"
 	"os/exec"
 	"runtime"
 	"strings"
@@ -68,6 +69,19 @@ func getOrCreate(id string) *Session {
 	}
 	cmd.Dir = initialCwd
 
+	// Build environment: inherit parent env but force TERM so that bash readline
+	// correctly decodes modifier+cursor sequences (Shift+Arrow etc.).
+	// Without this, PTYs started from daemons/services may have TERM unset or
+	// set to "dumb", causing escape sequences to appear as literal characters.
+	env := os.Environ()
+	filtered := make([]string, 0, len(env)+1)
+	for _, e := range env {
+		if !strings.HasPrefix(e, "TERM=") {
+			filtered = append(filtered, e)
+		}
+	}
+	cmd.Env = append(filtered, "TERM=xterm-256color")
+
 	ptty, err := pty.Start(cmd)
 	if err != nil {
 		return nil