feat: connect terminal service to backend

feat: put terminal service into container

refactor: separate main into terminal and websocket

feat: create zsh using commander in home

feat: pass backendUrl to container

feat: pass token to ws server to cmd-hook

feat: gen terminal access token for frontend

feat: success to connect through traefik

fix: handle invalid jwt

feat: connect to session container via traefik

services/terminal-service/terminal.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"os"
+	"os/exec"
+
+	"github.com/creack/pty"
+)
+
+type terminal struct {
+	cmd *exec.Cmd
+	pty *os.File
+}
+
+func newTerminal(token string) (*terminal, error) {
+	// Start a new shell in the home directory
+	cmd := exec.Command("/usr/bin/zsh")
+	cmd.Dir = os.Getenv("HOME")
+	cmd.Env = append(os.Environ(), "ZDOTDIR=/etc/zsh", "TOKEN="+token)
+	ptmx, err := pty.Start(cmd)
+	if err != nil {
+		return nil, err
+	}
+
+	return &terminal{
+		cmd: cmd,
+		pty: ptmx,
+	}, nil
+}
+
+func (t *terminal) Close() error {
+	if t.pty != nil {
+		t.pty.Close()
+	}
+	if t.cmd != nil {
+		t.cmd.Process.Kill()
+		t.cmd.Wait()
+	}
+	return nil
+}