add lru to the parser in python

[evinism]

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[Copilot]

Pull Request Overview

This PR adds LRU caching functionality to the MistQL parser in Python to improve performance for repeated queries. The cache stores parsed ASTs for queries to avoid re-parsing the same query string multiple times.

• Added parse_lru_cache_size parameter to MistQLInstance constructor with default size of 1
• Replaced direct parse() calls with cached version using functools.lru_cache
• Added comprehensive test suite covering basic functionality, size limits, performance, statistics, and edge cases

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
py/mistql/instance.py	Added LRU cache integration with configurable cache size and cached parse method
py/tests/test_lru_cache.py	Comprehensive test suite for LRU cache functionality including performance, statistics, and edge cases

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[Copilot]

Pull Request Overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

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[evinism]

Gonna go ahead and merge this.