fix: use only ipni-enabled providers

[SgtPooki]

Summary

Update filecoin-pin to use the new withIpni provider filtering option from synapse-sdk. Here's what was changed:

Files Modified:

1. src/core/synapse/index.ts (2 changes):

   • Updated DEFAULT_STORAGE_CONTEXT_CONFIG to include withIpni: true on line 32
   • Updated initializeSynapse function to pass withIpni: true in SynapseOptions on line 227

2. src/payments/interactive.ts (1 change):

   • Updated Synapse.create() call to include withIpni: true on line 95

Key Points:

✅ All Synapse instances now pass withIpni: true to ensure only IPNI-enabled providers are selected
✅ All storage contexts created through our wrapper functions will automatically have withIpni: true in their default configuration
✅ Upload-action doesn't need changes since it uses our createStorageContext and initializeSynapse functions which now have the defaults set

Consistency with SDK Updates:

The changes align with the synapse-sdk PR #309 which:

• Added withIpni filtering to provider selection
• Forces provider random selection when forceCreateDataSet is true
• Filters out providers where provider?.products.PDP?.data.ipniIpfs === false

Fixes #104