quote handling

[gkennos]

to fix #16

[Copilot]

Pull request overview

This PR aims to address issue #16 (“improper quotation handling for athena files”) by making quote handling explicit/consistent across the PostgreSQL COPY fast-path and the pandas fallback, and by adding tests that exercise literal vs CSV quoting behavior.

Changes:

• Added resolve_quote_mode() and used it in both quick_load_pg() and the pandas fallback loader to ensure consistent parsing behavior.
• Expanded test coverage for quote-mode propagation and delimiter-derived quote-mode selection.
• Bumped project version to 0.5.2 and updated the pyarrow minimum requirement / lockfile.

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/orm_loader/loaders/loading_helpers.py	Adds resolve_quote_mode() and routes COPY quote behavior through it; increases infer sampling size.
src/orm_loader/loaders/loader_interface.py	Ensures pandas fallback honors resolved quote mode via quoting=.
tests/loaders/test_helpers.py	Adds unit tests for resolve_quote_mode() and existing sniffing behavior.
tests/loaders/test_pandas_loader.py	Adds integration tests proving quote_mode affects pandas parsing and delimiter-derived behavior.
pyproject.toml	Version bump and dependency floor update for pyarrow.
uv.lock	Lockfile updates reflecting version/dependency changes (including pyarrow resolution).
CHANGELOG.md	Adds a 0.5.2 entry for quote-handling changes.

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