feat: gate mainnet probes on wallet readiness

[piotr-iohk]

Part of synonymdev/bitkit-nightly#17

This PR gates the mainnet Lightning probe spec on real wallet readiness instead of a fixed stabilization delay. After restore, it polls the Android probeReadiness devtools command until the node is running, has a connected peer, a usable channel, healthy sync, and a non-thin network graph before probing. This addresses the ROUTE NOT FOUND / "Probe sending failed" failures caused by probing against an incomplete graph.

Summary

• Adds waitForProbeReadiness() polling helper plus ProbeReadiness parsing/validation in test/helpers/probe.ts, surfacing device errors on timeout.
• Wires the gate into test/specs/mainnet/probe.e2e.ts after the wallet-ready UI checks.
• Records the readiness snapshot in probe-report.md and writes probe-readiness.json for diagnostics (consumed by the nightly Slack summary).
• New tunables: PROBE_READINESS_TIMEOUT_MS, PROBE_READINESS_POLL_MS, PROBE_MIN_GRAPH_CHANNELS (default 10,000).

Test plan

• Run @probe_mainnet against a mainnet build: readiness poll logs appear and probes start only once the graph is healthy.
• Readiness snapshot appears in probe-report.md and probe-readiness.json.

Depends on the Android probeReadiness devtools command (synonymdev/bitkit-android).

Made with Cursor

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Note

Low Risk
Test-only changes to E2E probe helpers and spec timing; no production app logic.

Overview
Mainnet Lightning probe E2E now waits for real node readiness after wallet restore instead of relying on a fixed stabilization delay. New helpers in test/helpers/probe.ts poll the Android devtools probeReadiness content call (override via PROBE_READINESS_METHOD) until peers, usable channels, sync health, and graph size meet thresholds—configurable via PROBE_READINESS_TIMEOUT_MS, PROBE_READINESS_POLL_MS, and PROBE_MIN_GRAPH_CHANNELS (default 10k channels).

The mainnet probe spec calls waitForProbeReadiness after waitForMainnetWalletReady and only then runs LNURL probes. Artifacts now include a readiness line in probe-report.md and optional probe-readiness.json for nightly diagnostics.

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[piotr-iohk]

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