feat: add solutions for lc No.3822

[yanglbme]

No description provided.

[Copilot]

Pull request overview

This PR adds solution implementations for LeetCode problem 3822 "Design Order Management System", a medium-difficulty problem requiring the design of a trading platform's order management system that supports adding, modifying, canceling orders, and querying orders by price and type.

Changes:

• Added solution implementations in Python, Java, C++, Go, and TypeScript
• Added comprehensive problem descriptions and explanations in both Chinese (README.md) and English (README_EN.md)
• Implemented hash table-based solutions with detailed complexity analysis

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Solution.py	Python implementation using hash tables - missing required imports
Solution.java	Java implementation using records and hash maps
Solution.cpp	C++ implementation with custom hash function for pair keys
Solution.go	Go implementation with custom Key struct
Solution.ts	TypeScript implementation using string-based key encoding
README.md	Chinese problem description with detailed solution explanation
README_EN.md	English problem description with detailed solution explanation

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