llms.txt links Explorer's landing stub instead of its section aggregate

[jstirnaman]

Current state

layouts/index.llmstxt.txt:33 links InfluxDB 3 Explorer's per-page landing twin:

- [InfluxDB 3 Explorer](influxdb3/explorer/index.md): Web-based data exploration tool

Every sibling product in the InfluxDB 3 block (lines 28–31: Core, Enterprise, Cloud Dedicated, Cloud Serverless) links its index.section.md aggregate, and the template's preamble states the file points to aggregated .section.md files.

Verified against production (2026-06-11):

• https://docs.influxdata.com/influxdb3/explorer/index.md is the landing page only (estimated_tokens: 303).
• https://docs.influxdata.com/influxdb3/explorer/index.section.md exists (HTTP 200, ~14,400 estimated tokens, 10 child pages).

An agent that consumes products through llms.txt section entries receives ~300 tokens for Explorer and full section content for every other InfluxDB 3 product.

Recommended changes

1. Change the entry to influxdb3/explorer/index.section.md.
2. Optional hardening: yarn check:md-coherence validates the "Full corpora" block against getCorpusPaths() but doesn't validate the hand-written section-block links. Add a check that each section entry links an existing file so the next hand-edited line can't drift.

How this was found

Surfaced independently by two automated AI-visibility review runs against /influxdb3/explorer/ (2026-06-11); both verified the production URLs above.