chore: init pysa

[asukaminato0721]

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Summary

#38524

Screenshots

Before	After
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Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran make lint && make type-check (backend) and cd web && pnpm exec vp staged (frontend) to appease the lint gods

[github-actions]

Pyrefly Diff

base → PR

--- /tmp/pyrefly_base.txt	2026-08-07 18:39:21.016489277 +0000
+++ /tmp/pyrefly_pr.txt	2026-08-07 18:39:10.520504573 +0000
@@ -1768,7 +1768,7 @@
    --> tests/unit_tests/commands/test_data_migration_commands.py:172:12
 ERROR Object of class `object` has no attribute `options_override` [missing-attribute]
    --> tests/unit_tests/commands/test_data_migration_commands.py:173:12
-ERROR `(self: list[Unknown], object: Unknown, /) -> None` is not assignable to attribute `echo` with type `(message: object = None, file: IO[Any] | None = None, nl: bool = True, err: bool = False, color: bool | None = None) -> None` [bad-assignment]
+ERROR `(self: list[Unknown], object: Unknown, /) -> None` is not assignable to attribute `echo` with type `(message: Any | None = None, file: IO[Any] | None = None, nl: bool = True, err: bool = False, color: bool | None = None) -> None` [bad-assignment]
    --> tests/unit_tests/commands/test_data_migration_wizard.py:147:33
 ERROR Expected a callable, got `None` [not-callable]
   --> tests/unit_tests/commands/test_fix_app_site_missing.py:37:5

[github-actions]

Pyrefly Type Coverage

Metric	Base	PR	Delta
Type coverage	58.03%	58.12%	+0.09%
Strict coverage	57.60%	57.62%	+0.02%
Typed symbols	37,893	37,988	+95
Untyped symbols	27,614	27,614	0
Modules	3133	3146	+13