Add InfluxDB importer

[adambernier]

Add InfluxDB 3 configuration, query importing, Arrow result normalization, tests,
documentation, and CLI help snapshots.

[Copilot]

Pull request overview

Adds InfluxDB 3 as an import source across configuration, querying, CLI, tests, and documentation.

Changes:

• Adds InfluxDB connection and test configuration.
• Imports and normalizes Arrow query results.
• Adds dependencies, tests, CLI snapshots, and documentation.

Reviewed changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
uv.lock	Locks InfluxDB client dependencies.
pyproject.toml	Adds the InfluxDB client dependency.
otava/influxdb.py	Implements the client wrapper.
otava/importer.py	Adds InfluxDB result importing.
otava/config.py	Wires connection configuration into the CLI.
otava/test_config.py	Parses InfluxDB test definitions.
tests/influxdb_test.py	Tests configuration and importing.
tests/cli_help_test.py	Updates CLI help snapshots.
README.md	Lists InfluxDB support.
docs/README.md	Links the InfluxDB guide.
docs/INFLUXDB.md	Documents InfluxDB usage.
examples/influxdb/otava.yaml	Provides an example configuration.

Suppressed comments (1)

otava/importer.py:885

• InfluxDB 3 returns its Arrow time column as a timezone-less timestamp, and to_pylist() therefore yields a naive datetime. DataSelector boundaries are timezone-aware, so this comparison raises TypeError: can't compare offset-naive and offset-aware datetimes for real query results. Normalize naive InfluxDB timestamps as UTC before filtering and converting to epoch seconds; the test currently constructs a timezone-aware Arrow schema and misses this production shape.

            timestamp = row[time_index]
            if timestamp < since_time or timestamp >= until_time:

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[Gerrrr]

Thanks for the contribution! This PR looks good overall, but needs a few changes to get ready for merge. Please also rebase against latest master - I had to update dependencies to fix CI.

[adambernier]

@Gerrrr thanks for the comments, just now seeing your add'l notes. i'll update the PR with changes to account for those

[adambernier]

Follow-up commits 8757974 and 61dc2d6 are pushed. Local validation is green (204 tests, including the new authenticated InfluxDB SQL/InfluxQL E2E test; Ruff, Autoflake, isort, Flake8, license hooks, Compose config, and the Docker build/example workflow).

Whenever is convenient, a maintainer would need to re-approve/run the Python 3.10–3.14 matrix and dependent docker-build job. The prior 3.14 failure was the version-specific list.index() ValueError text; 61dc2d6 now constructs the stable Otava missing-column error directly.

[Gerrrr]

2 more minor changes + fix rebase conflict and it will be ready to merge.

[adambernier]

Rebased onto 19882e9 and addressed the two latest review comments in 7c47ab5. Local validation is green: 220 tests (including the public-CLI SQL/InfluxQL Docker E2E), all configured lint/license checks, Compose config/build/example and seed idempotence, plus locked installs on Python 3.10–3.14. The refreshed Python application workflow is awaiting maintainer approval at https://github.com/apache/otava/actions/runs/32744967567; @Gerrrr, when convenient, please approve it so the Python matrix and dependent docker-build job can run.