Fix/peer auth fetch

[sirdeggen]

Description of Changes

First set out to fix Auth Middleware but it turns out the issue is fixable from Peer class.

The /.well-known/auth endpoint hangs because:

The middleware sets up a listener for certificates but never responds if:

No certificates are sent by the client
A session already exists for that identity
The response is only sent when:

The Peer class calls transport.send() with a response message
This happens inside the messageCallback processing
Your backend's onCertificatesReceived callback (server.ts:54-72) calls next() on line 71, but this only happens AFTER certificates are received

The initial auth handshake response should be sent by the Peer class through the messageCallback, but if the Peer doesn't respond (perhaps due to session state or missing configuration), the request hangs forever.

The fix would involve ensuring that:

The Peer always sends a response for the initial /.well-known/auth request
Or the middleware sends an explicit response if no session/certificates are needed
Or there's a timeout mechanism to prevent indefinite hanging

Bug #1: Race Condition in Timeout Setup
Bug #2: Inconsistent Key Usage (Less Critical)
Stored promise with: message.yourNonce
Resolved promise with: peerSession.sessionNonce

Testing Procedure

Describe the tests you've added or any testing steps you've taken.

• I have added new unit tests
• All tests pass locally
• I have tested manually in my local environment

Checklist

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have updated CHANGELOG.md with my changes
• I have run npm run doc and npm run lint one final time before requesting a review
• I have fixed all linter errors to ensure these changes are compliant with ts-standard
• I have run npm version patch so that my changes will trigger a new version to be released when they are merged

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

🏁 Benchmark Comparison (Node 22)

Comparing this PR (8a2d9ce) against master (0f3c5ad).

✅ No regressions over the 5% threshold detected. 🎉 2 significant speedups (>5% faster).

Speedups

• 🎉 Reader & Writer – 400 medium payloads is 5.07% faster (14.78 ms vs 15.57 ms).
• 🎉 Atomic BEEF – Transaction.fromAtomicBEEF is 11.88% faster (3.56 ms vs 4.04 ms).

Benchmark	Metric	PR Branch	Master	Δ	Change
BigNumber Arithmetic	mul large numbers	8.81 ms	8.83 ms	-0.02 ms	-0.23%
BigNumber Arithmetic	add large numbers	1.45 ms	1.47 ms	-0.02 ms	-1.36%
BigNumber Serialization	toSm big	2.81 ms	2.87 ms	-0.06 ms	-2.09%
BigNumber Serialization	toSm little	2.87 ms	3.00 ms	-0.13 ms	-4.33%
BigNumber Serialization	fromSm big	2.94 ms	2.97 ms	-0.03 ms	-1.01%
BigNumber Serialization	fromSm little	3.02 ms	3.07 ms	-0.05 ms	-1.63%
BigNumber Serialization	fromScriptNum	3.01 ms	3.07 ms	-0.06 ms	-1.95%
Script Serialization	Big script round trip	3.89 ms	3.82 ms	+0.07 ms	+1.83%
Transaction Verification	deep chain verify	576.52 ms	576.10 ms	+0.42 ms	+0.07%
Transaction Verification	wide transaction verify	596.24 ms	587.28 ms	+8.96 ms	+1.53%
Transaction Verification	large tx verify	292.07 ms	293.12 ms	-1.05 ms	-0.36%
Transaction Verification	nested inputs verify	163.86 ms	164.94 ms	-1.08 ms	-0.65%
Symmetric Key	encrypt large 2MB	1744.03 ms	1733.89 ms	+10.14 ms	+0.58%
Symmetric Key	decrypt large 2MB	1703.71 ms	1687.24 ms	+16.47 ms	+0.98%
Symmetric Key	encrypt 50 small	7.53 ms	7.53 ms	+0.00 ms	0.00%
Symmetric Key	decrypt 50 small	7.16 ms	7.17 ms	-0.01 ms	-0.14%
Symmetric Key	encrypt 200 medium	182.91 ms	181.81 ms	+1.10 ms	+0.61%
Symmetric Key	decrypt 200 medium	177.05 ms	176.43 ms	+0.62 ms	+0.35%
Reader & Writer	mixed ops	0.23 ms	0.22 ms	+0.01 ms	+4.55%
Reader & Writer	large payloads	28.02 ms	29.20 ms	-1.18 ms	-4.04%
Reader & Writer	3000 small payloads	1.71 ms	1.75 ms	-0.04 ms	-2.29%
Reader & Writer	400 medium payloads	14.78 ms	15.57 ms	-0.79 ms	-5.07%
Atomic BEEF	Transaction.toAtomicBEEF	1.49 ms	1.49 ms	+0.00 ms	0.00%
Atomic BEEF	Transaction.fromAtomicBEEF	3.56 ms	4.04 ms	-0.48 ms	-11.88%