Bug: `getStreamAddress` swallows every error into `null` — RPC/network failure is indistinguishable from "stream not found"

[Jaydbrown]

File: lib/stream.ts:47-66 (getStreamAddress)

export async function getStreamAddress(source, streamId, options?) {
  if (isMock()) return MOCK_ADDRESSES[streamId.toString()] ?? null;
  try {
    const result = await simulateReadOnly(source, FACTORY()!, 'stream_address', [...]);
    if (result.switch().name === 'scvVoid') return null;
    return Address.fromScVal(result).toString();
  } catch {
    return null;      // <-- every failure becomes "not found"
  }
}

The bare catch { return null } collapses three very different outcomes to one:

• the factory returned Void → stream genuinely doesn't exist
• the RPC call failed / timed out / rate-limited
• FACTORY()! was undefined (unset NEXT_PUBLIC_FACTORY_CONTRACT_ID in
  non-mock mode) → new Contract(undefined) threw deep in stellar-sdk

Callers (/stream/[id], fetchStreamsFromIndexer, dashboard) all treat null
as "Stream not found", so an outage or a misconfigured env shows the user
"Stream not found" for a stream that exists.

Suggested fix

Only return null for the scvVoid case; let real errors propagate (or wrap
them in a typed StreamLookupError) so the UI can show "couldn't reach the
network" vs "no such stream".

[Tobi-8]

Can i be assigned to this
I have the knowledge and experience to handle this issue

[grantfox-oss]

🦊 GrantFox — @Tobi-8 has been assigned to this issue as part of the Third Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #383)
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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@Tobi-8's PR #410 was approved and merged by @Jaydbrown.

🏆 @Tobi-8: You earned 40 FoxPoints for this contribution! Your current tier: Builder (2,383 total points). Track your full progress on GrantFox.

👏 Great work, @Tobi-8! Keep contributing to conduit-protocol.