[EPIC] Mainnet test & resilience readiness (load, chaos, upgrades, E2E)

[joelpeace48-cell]

Epic / consolidation. Merges the test-depth + resilience-validation tasks into one high-priority, mainnet-blocking initiative. Supersedes #580, #632, #633, #634, #635, #636.

Why this matters (launch confidence = growth)

You only get one mainnet launch reputation. Proving the system survives real load, real network drift, upgrades, and injected faults is what lets the team confidently open the gates to thousands of users. This bundles the validation that gates a credible mainnet launch.

Goal

Validate Trivela end-to-end under real conditions: live-testnet flows, contract upgrades, load/soak, chaos faults, and visual regressions.

Scope (merged work items)

• Real-testnet E2E — gated CI job running register→credit→claim against live testnet with an ephemeral funded key + artifacts on failure. (was test: End-to-end tests against real Stellar testnet (not mocks) #633)
• Upgrade & migration tests — deploy vN, populate rich state, migrate to vN+1, assert state preserved + new behavior; negative (downgrade/unauthorized). (was test: Contract upgrade & state-migration tests #634)
• Load tests — burst registration + claim-storm scenarios with p95/error thresholds → capacity report. (was test: Load tests for claim/registration storms #635)
• Soak/endurance — multi-hour steady load + memory tracking → leak detection. (was test: Soak / endurance tests (memory-leak detection) #636)
• Chaos — inject RPC kill/slow, DB latency, Redis/pod outage in staging; assert graceful degradation + recovery (validates breaker/queue/failover/shutdown). (was feat: Chaos engineering tests (RPC kill, DB latency, pod/Redis outage) #580)
• Visual regression — snapshot key Storybook stories + pages (light/dark); gate PRs on diffs. (was feat: Visual regression testing (Storybook + snapshots) #632)

Acceptance criteria

• Live-testnet E2E passes; upgrades preserve state; load/soak meet thresholds with no leaks; chaos shows graceful degradation + recovery; visual diffs gate PRs.

Verification

• CI jobs for each; capacity + soak reports; scripted chaos with pass/fail assertions.

Priority: high · Difficulty: hard · Effort: L · mainnet blocker

[Menjay7]

Hi! I came across this issue and would love to work on it. I have experience with similar tasks and I'm confident I can investigate, implement a clean solution, and thoroughly test it before submitting a PR. If the issue is still open, I would appreciate it if you could assign it to me. Thank you!

[jaynomyaro]

Hi! I’m a full-stack developer with a strong blockchain background. I’d love to handle this issue and can deliver a clean, reliable solution. Kindly assign it to me.