Investigate stale @nostrstack/react localhost:3002 port remap in built package

[joelklabo]

Social's resolveGalleryApiBase in the app needed a local override to avoid localhost:3002 being rewritten to localhost:3001 when resolved through @nostrstack/react exports in this environment.

This is likely indicating a package runtime/source drift for resolveApiBase handling. We should:

• confirm packages/react/src/api-base.ts and the distribution package used at runtime stay in sync
• remove any legacy localhost:3002→3001 conversion in @nostrstack/react shared resolution path
• add coverage in both package and app where practical to prevent regression.

[joelklabo]

Investigation complete:

Findings:

1. ✅ Source () and dist () are in sync
2. ✅ No legacy localhost:3002→3001 conversion exists - simply returns the input unchanged
3. ✅ Test coverage exists in both:
   • • tests preserving localhost:3002
   • • tests preserving localhost:3002

The issue was already resolved in prior work. The package correctly preserves custom ports like localhost:3002 without rewriting them.