…nt timeouts when querying InfluxDB 3 distributed.

- Closes influxdata/DAR#526
- Adds Python client examples
- Adds influxctl examples

Co-authored-by: Reid Kaufmann

…practices

Address reidkaufmann's review comments on query timeout documentation:

Technical accuracy fixes:
- Replace "node/nodes" terminology with "querier/queriers" throughout
- Remove AI hallucination: "query result caching" (doesn't exist in IOx)
- Replace with proper cache recommendations for Enterprise/Core users
- Remove vague "background maintenance" references
- Add specific compaction performance variation cause
- Fix "round-robin or load-balanced" → "round-robin query routing"

Content improvements:
- Enhance checkout line analogy with explanation of noisy neighbors
- Add experimental query guidance for reducing impact on other users
- Replace unactionable solutions with customer-controllable actions
- Restore missing flexibility recommendations and link to the code sample

Technical updates:
- Update code blocks to use new placeholder syntax
- Add related links between cache documentation and timeout strategies
- Fix numbering consistency in Solutions sections