Emi Griffith ca589545a6 Return 422 for malformed date query param in grade/day endpoints ... api_grade and api_day parsed the `date` query param with an unguarded datetime.date.fromisoformat, so a malformed or non-calendar value (notadate, 2026-13-40, 2026-02-30) raised ValueError and surfaced as a 500. Route the parse through a _parse_target_date helper that maps the ValueError to HTTPException(422); absent/empty and valid dates behave exactly as before. Add a route-level test asserting 422 on bad dates.		2026-07-24 15:43:35 -07:00
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__init__.py	Subtree-merge thermograph-backend (origin/main) into backend/	2026-07-22 22:01:11 -07:00
app.py	Return 422 for malformed date query param in grade/day endpoints	2026-07-24 15:43:35 -07:00