Cardano Updates

- New docs/query-logs.md mirrors the tool README at the site level,
  framed as complementary to triage (report parsing vs indexed-stdout
  search) and explicit about the workaround-not-API status.
- Adds nav entry 'Querying logs' in mkdocs.yml.
- Links the new page from triage.md so readers triaging a run find the
  stdout-search tool without hunting through tools/.

- New docs/query-logs.md mirrors the tool README at the site level,
  framed as complementary to triage (report parsing vs indexed-stdout
  search) and explicit about the workaround-not-API status.
- Adds nav entry 'Querying logs' in mkdocs.yml.
- Links the new page from triage.md so readers triaging a run find the
  stdout-search tool without hunting through tools/.

Imports the reverse-engineered client we've been using to pull matches
out of /search over CDP. Two cookie-intake paths (interactive login.bb
for display hosts, set-cookie.sh 'Copy as cURL' for headless), the
pangolin session_id resolver, the search URL encoder, a two-phase
chromium driver, and the structured-summary wrapper.

Marked as a workaround pending an official Antithesis API.

Add a log-tailer sidecar that mounts the shared tracer volume
read-only and tails cardano-tracer ForMachine JSON per host.
Only events with sev in {Warning, Error, Critical} are emitted
to stdout, where Antithesis Logs Explorer indexes them as
source=log-tailer.

Rationale: Antithesis indexes container stdout only, so the rich
per-node trace stream that cardano-tracer writes to the tracer
volume never reaches the triage report. Severity filter keeps
load to ~0.3% of total tracer volume while surfacing every real
problem (ConnectionError, NotEnoughBigLedgerPeers, ShutdownArmedAt,
consistency warnings).

Verified: tailer survives producer kill (p1) and tracer kill;
picks up rotated files within a 15s poll; zero tailer restarts.

Publishes the current state of programmatic access to Antithesis test
reports: no REST API or MCP server, reports arrive as signed HTML URLs
via email, and the official path for AI-agent triage is the
antithesis-triage skill plus snouty/agent-browser/jq.

Adds docs/triage.md with the full story and how it ties into the moog
workflow we use to request and decrypt report URLs.

Add kupo service (with N2C harness) on top of main (3p+2r+Oura)
without tx-generator/Ogmios. Isolates whether kupo alone breaks
Antithesis runs.

Add ogmios service (with N2C harness) on top of main (3p+2r+Oura)
without tx-generator/Kupo. Isolates whether ogmios alone breaks
Antithesis runs.

Add tx-generator service on top of main (3p+2r+Oura) without
Ogmios/Kupo/harness. Isolates whether tx-generator alone breaks
Antithesis runs.

- tx-generator: Python + Antithesis SDK, submits ADA self-transfers
  via cardano-cli over N2C to relay1 (10.6.2)
- Ogmios: WebSocket chain query bridge on relay2 (10.7.1)
- Kupo: UTxO chain-index on relay2 (10.7.1)
- Configurator: preserve genesis UTxO keys for tx-generator,
  fix cardano-cli Nix deps in Dockerfile

Submission and observation split across relays to prove
N2N mempool propagation end-to-end.

3 producers + 2 relays + Oura N2N client, replacing
the previous 5/6 producer-only topology.

Replace 6-producer topology with 3 producers + 2 relays + Oura:
- p1: 10.5.3, p2: 10.6.2, p3: 10.7.1 (producers)
- relay1: 10.6.2, relay2: 10.7.1 (non-producing relays)
- oura: N2N TCP client via Pallas (Rust)

Dolos excluded pending custom network support (see #35).

Rebalance pool versions to 1-1-2-2 distribution:
- p1: 10.5.1, p2: 10.5.3, p3-p4: 10.6.2, p5-p6: 10.7.1

Bump configurator to 10.7.1 for genesis generation.