test: Storage + Arcade e2e load test suite

[sambabbage]

Summary

• Adds StorageE2E.man.test.ts with 8 tests across 3 suites covering the full concurrency matrix (sequential / single-user-parallel / multi-user-parallel) for read TPS, write TPS, and Arcade SSE proof delivery
• Adds e2e/storage/README.md documenting env vars, pre-funding requirements, run commands, Docker TODO, and observed baselines
• Originally opened as test: Storage + Arcade e2e load test suite #243 targeting codex/monitor-arc-resilience (now merged); retargeted to main

Test Suites

Suite	Tests	What it covers
1 · Read TPS	1a–1e	Raw HTTP sequential, user-parallel, BRC-100 listOutputs, multi-user, babbage baseline
2 · Write TPS	2a–2c	createAction sequential, single-user-parallel (noSend + concurrent Arcade broadcast), multi-user parallel
3 · SSE throughput	3a–3c	Sequential delivery, concurrent Arcade ingestion, ceiling escalation (doubles batch until ≥20% fail)

Key design choices

• noSend + Arcade pattern (suites 2b, 3): createAction({ noSend: true, acceptDelayedBroadcast: true }) → AtomicBEEF → arcade.postBeef(beef, [txid]). Routes through Arcade directly, triggering SSE callbacks to the storage server's /arc-ingest endpoint.
• Deterministic multi-user keys: deriveUserKey(rootHex, i) uses BIP-32 m/0/i child derivation so the user pool is reproducible across runs.
• acceptDelayedBroadcast: true throughout so tests run even when all UTXOs are unconfirmed (common after consecutive runs against the same key).

Validated baselines (mainnet, 2026-06-27)

Metric	Result
Sequential write TPS	0.60–0.68 tx/s
Arcade broadcast latency	avg 138ms, p95 318ms, 7.2 tx/s
SSE delivery (10 txs)	10/10 proofs, ~6 min to mine

Run

export STORAGE_E2E_ROOT_KEY=<funded_key_hex>
export STORAGE_E2E_ARCADE_TOKEN=<callback_token>
cd packages/wallet/wallet-toolbox
node_modules/.bin/jest --runTestsByPath src/services/__tests/StorageE2E.man.test.ts --verbose --testTimeout=900000

See e2e/storage/README.md for full details.

🤖 Generated with Claude Code

[sonarqubecloud]

Quality Gate passed

Issues
2 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