fix：solve the dup retrieval issue

[MadratJerry]

close issue #531

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
petercat	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Dec 14, 2024 4:45pm

[petercat-assistant]

Walkthrough

This pull request addresses issue #531 by fixing a duplication retrieval problem in the retrieval.py file. The changes include optimizing database queries to prevent duplicate entries and ensuring minimal record retrieval. Additionally, environment variable management is improved across several modules by centralizing their imports.

Changes

Files	Summary
petercat_utils/rag_helper/retrieval.py	Optimized database queries to prevent duplicate document retrieval and ensure minimal record overlap.
server/auth/middleware.py, server/auth/router.py, server/github_app/router.py, server/main.py, server/tests/test_main.py	Centralized environment variable imports to improve consistency and maintainability.
server/env.py	Added a new file to list and manage environment variables.

[codecov]

Codecov Report

Attention: Patch coverage is 77.27273% with 15 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
server/auth/middleware.py	73.68%	10 Missing ⚠️
petercat_utils/rag_helper/retrieval.py	16.66%	5 Missing ⚠️

Files with missing lines	Coverage Δ
server/auth/router.py	38.61% <100.00%> (-2.77%)	⬇️
server/github_app/router.py	41.17% <100.00%> (ø)
server/main.py	92.59% <100.00%> (ø)
server/tests/test_main.py	100.00% <100.00%> (ø)
petercat_utils/rag_helper/retrieval.py	30.30% <16.66%> (ø)
server/auth/middleware.py	77.55% <73.68%> (ø)

... and 1 file with indirect coverage changes

[xingwanying]

petercat_utils 发个包吧，顺便把toml文件提交一下

[xingwanying]

LG