docs: publish the v2026.10.7-alpha ingest benchmark

[vishr]

Summary

Publishes the v2026.10.7-alpha ingest benchmark:

• Setup: Fanout on a Hetzner Cloud ccx33 (8 dedicated vCPUs, 32 GB RAM), with telemetrygen on a separate ccx33.
• Run: three publish-sweep repetitions, then five minutes of mixed load.
• Result: 422,408 mixed OpenTelemetry items/s sustained (51,358 spans, 184,883 log records and 186,178 metric points per second).
• Gates: every gate passed.

Changes:

• Landing benchmark:
  • the sustained result and its composition bar;
  • a mixed sweep chart showing the median, the min-max band across repetitions, the sustained point and the region where the generator ran at 7 or more cores;
  • median-peak tiles with ranges;
  • gate chips and evidence links.
• Performance page:
  • setup and method;
  • the sustained composition;
  • median peaks with ranges, Fanout CPU and generator CPU;
  • the full mixed sweep table;
  • small-multiple sweep charts for traces, logs, metrics and mixed;
  • evidence and reproduction steps.
• Shared data: site/src/data/benchmark.ts, derived from the run's report.json, feeds both chart components.
• Links: the README, home page and capability status point to the result and to the raw evidence in fanout-bench (docs: publish the v2026.10.7-alpha 8-vCPU results fanout-bench#5).

Test plan

• just check, including the site build and the table, social-card and canonical checks
• Rendered review of the landing section and performance page at 1280 px and 390 px, in light and dark themes

https://claude.ai/code/session_01XA52nWyQ3R5f5kK8kjpAQW