Avoid past dates in the expiration date DatePicker

[technologic-technologic]

Prevent past dates in Expiration Date picker

Summary: Disallow selecting past dates in the Expiration Date DatePicker; only today and future dates are valid.

WHAT

• Enforce min date = today on the Expiration Date field.
• Block manual input of past dates (validation + UI feedback).
• Show clear error/help text when an invalid date is attempted.

WHY

• Prevents invalid inventory entries and downstream data issues.
• Aligns with business rule: products cannot have past expiration.

Acceptance Criteria

• User cannot select or type any date < today.
• Attempting a past date shows inline validation and prevents submit.
• Keyboard navigation respects the min date.
• Existing records with past dates are unaffected (view-only).

Non-Goals

• Changing other date fields or global date behavior.

QA Steps

1. Open create/edit product form.
2. Try picking yesterday → selection blocked, error shown.
3. Pick today/tomorrow → no error; form can submit.