chore: update project structure and enhance plugin functionality

- Added new entries to .gitignore for database files.
- Updated go.mod and go.sum to include new indirect dependencies for database and ORM support.
- Refactored event handling to improve message reply functionality in the protocol.
- Enhanced the dispatcher to allow for better event processing and logging.
- Removed outdated plugin documentation and unnecessary files to streamline the codebase.
- Improved welcome message formatting and screenshot options for better user experience.

internal/database/table_prefix.go

@@ -0,0 +1,38 @@
+package database
+
+import (
+	"fmt"
+
+	"gorm.io/gorm"
+)
+
+// GetTableName 获取带前缀的表名
+// 格式：{botID}_{tableName}
+func GetTableName(botID, tableName string) string {
+	if botID == "" {
+		return tableName
+	}
+	// 清理 botID 中的特殊字符，确保表名合法
+	cleanBotID := sanitizeTableName(botID)
+	return fmt.Sprintf("%s_%s", cleanBotID, tableName)
+}
+
+// WithTablePrefix 为查询添加表前缀
+func WithTablePrefix(db *gorm.DB, botID, tableName string) *gorm.DB {
+	prefixedTableName := GetTableName(botID, tableName)
+	return db.Table(prefixedTableName)
+}
+
+// sanitizeTableName 清理表名中的特殊字符
+func sanitizeTableName(name string) string {
+	// 移除或替换 SQL 不安全的字符
+	result := ""
+	for _, r := range name {
+		if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') || (r >= '0' && r <= '9') || r == '_' {
+			result += string(r)
+		} else {
+			result += "_"
+		}
+	}
+	return result
+}