feat: v2.1.0 核心重构与功能增强

## 架构重构
- 全局变量消除，迁移至 Config/State 对象
- SMB 插件融合（smb/smb2/smbghost/smbinfo）
- 服务探测重构，实现 Nmap 风格 fallback 机制
- 输出系统重构，TXT 实时刷盘 + 双写机制
- i18n 框架升级至 go-i18n

## 性能优化
- 正则表达式预编译
- 内存优化 map[string]struct{}
- 并发指纹匹配
- SOCKS5 连接复用
- 滑动窗口调度 + 自适应线程池

## 新功能
- Web 管理界面
- 多格式 POC 适配（xray/afrog）
- 增强指纹库（3139条）
- Favicon hash 指纹识别
- 插件选择性编译（Build Tags）
- fscan-lab 靶场环境
- 默认端口扩展（62→133）

## 构建系统
- 添加 no_local tag 支持排除本地插件
- 多版本构建：fscan/fscan-nolocal/fscan-web
- CI 添加 snapshot 模式支持仅测试构建

## Bug 修复
- 修复 120+ 个问题，包括 RDP panic、批量扫描漏报、
  JSON 输出格式、Redis 检测、Context 超时等

## 测试增强
- 单元测试覆盖率 74-100%
- 并发安全测试
- 集成测试（Web/端口/服务/SSH/ICMP）

fscan-lab/docker/services/core/mongo/init.js

@@ -0,0 +1,21 @@
+db = db.getSiblingDB('admin');
+
+db.createCollection('admin_secrets');
+
+db.admin_secrets.insert({
+    type: 'flag',
+    value: 'FSCAN_LAB{y0u_pwn3d_th3_n3tw0rk}',
+    description: 'Final Flag - Congratulations! You have successfully penetrated the entire network!',
+    achievement: 'Network Penetration Master',
+    timestamp: new Date()
+});
+
+db.admin_secrets.insert({
+    type: 'credentials',
+    service: 'root_access',
+    username: 'root',
+    password: 'RootP@ss2024',
+    notes: 'Full system access - game over!'
+});
+
+print('MongoDB initialized with final flag');

fscan-lab/docker/services/core/mssql/init.sql

@@ -0,0 +1,36 @@
+-- MSSQL 初始化脚本
+-- 创建 secrets 表并插入 flag10
+
+USE master;
+GO
+
+CREATE TABLE dbo.secrets (
+    id INT IDENTITY(1,1) PRIMARY KEY,
+    key_name NVARCHAR(255) NOT NULL,
+    key_value NVARCHAR(MAX) NOT NULL,
+    created_at DATETIME DEFAULT GETDATE()
+);
+GO
+
+-- 插入 flag10
+INSERT INTO dbo.secrets (key_name, key_value) VALUES
+    ('flag10', 'FSCAN_LAB{mssql_s4_4cc0unt_pwn3d}'),
+    ('db_version', 'Microsoft SQL Server 2022'),
+    ('admin_account', 'sa'),
+    ('production_db', '10.10.3.31');
+GO
+
+-- 创建业务数据表
+CREATE TABLE dbo.employees (
+    id INT IDENTITY(1,1) PRIMARY KEY,
+    name NVARCHAR(100),
+    position NVARCHAR(100),
+    salary DECIMAL(10,2)
+);
+GO
+
+INSERT INTO dbo.employees (name, position, salary) VALUES
+    ('David', 'Manager', 95000.00),
+    ('Eve', 'Developer', 80000.00),
+    ('Frank', 'Designer', 75000.00);
+GO

fscan-lab/docker/services/core/mysql/init.sql

@@ -0,0 +1,25 @@
+CREATE DATABASE IF NOT EXISTS secrets;
+USE secrets;
+
+CREATE TABLE IF NOT EXISTS flags (
+    id INT PRIMARY KEY,
+    flag VARCHAR(255) NOT NULL,
+    description VARCHAR(255)
+);
+
+CREATE TABLE IF NOT EXISTS credentials (
+    id INT PRIMARY KEY AUTO_INCREMENT,
+    service VARCHAR(50),
+    username VARCHAR(100),
+    password VARCHAR(100),
+    notes TEXT
+);
+
+INSERT INTO flags (id, flag, description) VALUES
+(1, 'FSCAN_LAB{mysql_d4t4b4s3_pwn3d}', 'Flag 6 - MySQL Database'),
+(2, 'Hint: LDAP admin credentials are admin:LdapAdmin2024', 'LDAP Hint');
+
+INSERT INTO credentials (service, username, password, notes) VALUES
+('ldap', 'admin', 'LdapAdmin2024', 'Domain controller admin account'),
+('mongodb', 'admin', 'mongo123', 'MongoDB root password'),
+('backup', 'backup_user', 'Backup@2024', 'Backup system credentials');

fscan-lab/docker/services/core/postgres/init.sql

@@ -0,0 +1,29 @@
+-- PostgreSQL 初始化脚本
+-- 创建 secrets 表并插入 flag9
+
+CREATE TABLE IF NOT EXISTS secrets (
+    id SERIAL PRIMARY KEY,
+    key VARCHAR(255) NOT NULL,
+    value TEXT NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 插入 flag9
+INSERT INTO secrets (key, value) VALUES
+    ('flag9', 'FSCAN_LAB{p0stgr3s_d4t4b4s3_pwn3d}'),
+    ('db_type', 'PostgreSQL 15'),
+    ('admin_email', '[email protected]'),
+    ('backup_server', '10.10.2.22');
+
+-- 创建业务数据表
+CREATE TABLE IF NOT EXISTS users (
+    id SERIAL PRIMARY KEY,
+    username VARCHAR(100),
+    email VARCHAR(255),
+    department VARCHAR(100)
+);
+
+INSERT INTO users (username, email, department) VALUES
+    ('alice', '[email protected]', 'Engineering'),
+    ('bob', '[email protected]', 'Sales'),
+    ('charlie', '[email protected]', 'HR');