PatchOp model is too permissive

[Meow-Knight]

🚀 Description

The PatchOp model currently allows inputs that do not conform strictly to the SCIM specification. This can lead to unexpected behavior or unvalidated data being processed.

⚙️ Current Behavior

Input:
>>> patch_instance = PatchOp.model_validate(dict(schemas=["abcd1234", "1234abcd"]))
>>> patch_instance.schemas
Output:
['abcd1234', '1234abcd']

⚠️ Issues

• The schemas field accepts any list of strings and doesn't enforce the exact expected value.
• The operations field is optional and allows None or an empty list, which should not be valid.

🚩 Expected Behavior

• schemas should strictly equal ["urn:ietf:params:scim:api:messages:2.0:PatchOp"].
• operations should be a required field and must contain at least one PatchOperation item.

[Meow-Knight]

Hi @azmeuk, could you take a look at this issue? I’d be happy to open a PR to fix it, if that's okay with you

[azmeuk]

Hi. Thank you for your report.
Actually PatchOp has not really been implemented, currently it is more like a stub class.
Feel free to open a PR.

[azmeuk]

Fixed by #94