refactor: refactor task logic for better scalability (#76)

* refactor: a big refactor. wip

* refactor: port handle file

* refactor: place all handlers

* fix: task info nil pointer

* feat: enhance task progress tracking and context management

* feat: cancel task

* feat: stream mode

* feat: silent mode

* feat: dir cmd

* refactor: remove unused old file

* feat: rule cmd

* feat: handle silent mode

* feat: batch task

* fix: batch task progress and temp file cleanup

* refactor: update file creation and cleanup methods for better resource management

* feat: add save command with silent mode handling

* feat: message link

* feat: update message prompts to include file count in storage selection

* feat: slient save links

* refactor: reduce dup code

* feat: rule type

* feat: chose dir

* feat: refactor file handling and storage rules, improve error handling and logging

* feat: rule mode

* feat: telegraph pics

* fix: tphpics nil pointer and inaccurate dirpath

* feat: silent save telegraph

* feat: add suffix to avoid file overwrite

* feat: new storage telegram

* chore: tidy go mod

common/utils/strutil/string.go

@@ -0,0 +1,50 @@
+package strutil
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/duke-git/lancet/v2/slice"
+)
+
+func HashString(s string) string {
+	hash := md5.New()
+	hash.Write([]byte(s))
+	return hex.EncodeToString(hash.Sum(nil))
+}
+
+var TagRe = regexp.MustCompile(`(?:^|[\p{Zs}\s.,!?(){}[\]<>\"\'，。！？（）：；、])#([\p{L}\d_]+)`)
+
+func ExtractTagsFromText(text string) []string {
+	matches := TagRe.FindAllStringSubmatch(text, -1)
+	tags := make([]string, 0)
+	for _, match := range matches {
+		if len(match) > 1 {
+			tags = append(tags, match[1])
+		}
+	}
+	return slice.Compact(tags)
+}
+
+func ParseIntStrRange(input string, sep string) (int64, int64, error) {
+	parts := strings.Split(input, sep)
+	if len(parts) != 2 {
+		return 0, 0, fmt.Errorf("invalid range format: %s", input)
+	}
+	min, err := strconv.ParseInt(strings.TrimSpace(parts[0]), 10, 64)
+	if err != nil {
+		return 0, 0, fmt.Errorf("invalid minimum value: %s", parts[0])
+	}
+	max, err := strconv.ParseInt(strings.TrimSpace(parts[1]), 10, 64)
+	if err != nil {
+		return 0, 0, fmt.Errorf("invalid maximum value: %s", parts[1])
+	}
+	if min > max {
+		min, max = max, min
+	}
+	return min, max, nil
+}