PDP: implement EXTRA_DATA_MAX_SIZE limit

[rjan90]

Context

The EXTRA_DATA_MAX_SIZE limit has been removed from PDPVerifier (FilOzone/pdp#224) as it should be enforced at the service level instead. This allows different services to set appropriate limits based on their specific requirements.

Task

Implement an EXTRA_DATA_MAX_SIZE limit in Curio to prevent excessively large metadata payloads. This should validate extraData size before calling PDPVerifier functions.

Recommended limits: FilOzone/pdp#224 (comment)

References

• PDPVerifier removal: Increase PDP Extradata Size Limit from 2KB FilOzone/pdp#224

[IshaanXCoder]

Heyy! Can you assign this issue to me?

[rjan90]

Assigned it to you now! Please branch off the pdpv0, and also target that branch when opening the PR

[siddharthbaleja7]

@rjan90 can you assign this issue to me?

[rjan90]

It is currently assigned to @IshaanXCoder, can you give an update on the progress here? @siddharthbaleja7 I can assign it to you, if Ishaan is not planning to pursue this anymore.

[IshaanXCoder]

Pls assign this to @siddharthbaleja7 , i started working on this but got engaged with some university work, sorry for the delay