fix: Add sale time validation in FixedPriceAllowedMintersStrategy

[VolodymyrBg]

Fix: Add sale time validation in FixedPriceAllowedMintersStrategy

Description

Added validation in the setSale function to ensure that saleStart is always less than saleEnd. Previously, it was possible to create a sale with invalid time window where end time was before start time, which could lead to tokens being unmintable.

Changes made:

1. Added validation check in setSale function
2. Added new InvalidSaleTime error to the interface
3. Bumped contract version from 1.0.0 to 1.0.1

Motivation and Context

This fixes a potential issue where tokens could become unmintable if a sale was configured with saleEnd before saleStart. The validation ensures that all sales have a valid time window.

Does this change the ABI/API?

• This changes the ABI/API

Added new error InvalidSaleTime to the interface. This is a backwards compatible change as it only adds a new error case.

What tests did you add/modify to account for these changes

Added test cases to verify:

• Setting sale with valid time window succeeds
• Setting sale with invalid time window (end before start) reverts with InvalidSaleTime
• Setting sale with equal start and end times reverts with InvalidSaleTime

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New module / feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I added a changeset to account for this change

Reviewer Checklist:

• My review includes a symposis of the changes and potential issues
• The code style is enforced
• There are no risky / concerning changes / additions to the PR

[iainnash]

Hello!

We do not use the fixedprice minter contracts anymore on our frontend but this is a good bug fix.

The impact of this is low as the user can update the sales configuration to a reasonable, mintable value.

This can be merged with tests.

[VolodymyrBg]

@iainnash Added test

[VolodymyrBg]

If the impact is low i will try to find something more significant