fix(sharecode): 支持分享码TTL配置并限制每MAC分享码数

- 配置增加 ShareCodeMaxPerMac 和 ShareCodeTTLMin 参数
- ShareCodeCache 支持自定义分享码有效期 TTL
- 生成分享码时使用配置的 TTL 替代固定30分钟
- 共享码处理添加限制，同一MAC有效分享码数量限制
- 路由层、处理器层和任务调度中增加TTL及限额参数传递
- 同步脚本默认同步路径调整，去除默认同步Docker文件，增加docs目录同步
- 修正上传脚本拼接远程路径时尾部斜杠问题

internal/cache/share_code_cache.go

@@ -51,7 +51,6 @@ const (
 	shareImportFlushLockPref = "share:import:flush:lock:"
 	shareMacIndexPrefix      = "share:mac:"
 	shareCodeLength          = 5
-	shareCodeTTL             = 30 * time.Minute
 	shareMacIndexTTL         = 1 * time.Hour
 	shareImportPendingTTL    = 12 * time.Hour
 	shareCodeCharset         = "23456789ABCDEFGHJKLMNPQRSTUVWXYZ"
@@ -101,19 +100,21 @@ type ShareCodeData struct {
 }
 
 type ShareCodeCache struct {
-	rdb *redis.Client
+	rdb     *redis.Client
+	codeTTL time.Duration
 }
 
-func NewShareCodeCache(rdb *redis.Client) *ShareCodeCache {
-	return &ShareCodeCache{rdb: rdb}
+func NewShareCodeCache(rdb *redis.Client, codeTTL time.Duration) *ShareCodeCache {
+	return &ShareCodeCache{rdb: rdb, codeTTL: codeTTL}
 }
 
-func ShareCodeTTL() time.Duration {
-	return shareCodeTTL
+// ShareCodeTTL returns the configured share code TTL.
+func (c *ShareCodeCache) ShareCodeTTL() time.Duration {
+	return c.codeTTL
 }
 
 func (c *ShareCodeCache) Create(ctx context.Context, macAddr, ipAddr string, eqData []byte) (*ShareCodeData, error) {
-	expireAt := time.Now().Add(shareCodeTTL)
+	expireAt := time.Now().Add(c.codeTTL)
 	eqJSON := string(eqData)
 
 	for i := 0; i < shareCodeMaxRetries; i++ {
@@ -125,7 +126,7 @@ func (c *ShareCodeCache) Create(ctx context.Context, macAddr, ipAddr string, eqD
 		key := shareCodeKey(code)
 		macIdxKey := shareMacIndexKey(macAddr)
 		ok, err := shareCreateScript.Run(ctx, c.rdb, []string{key, sharePendingSet, macIdxKey},
-			macAddr, ipAddr, eqJSON, expireAt.Format(time.RFC3339), int(shareCodeTTL.Seconds()), code, expireAt.Unix(), int(shareMacIndexTTL.Seconds()),
+			macAddr, ipAddr, eqJSON, expireAt.Format(time.RFC3339), int(c.codeTTL.Seconds()), code, expireAt.Unix(), int(shareMacIndexTTL.Seconds()),
 		).Int()
 		if err != nil {
 			return nil, fmt.Errorf("create share code in redis: %w", err)