"""Pipeline **tuning suite** — a read-only experimentation harness around the shipped
`lawn_estimator` pipeline.

It never edits `src/lawn_estimator/`. It drives the production building blocks via
(1) env vars (Config reads env fresh each run), (2) in-process module-attribute
overrides for the finer constants, and (3) a re-implementation of *only* the stage
sequencing of `pipeline.run` — so tools can be swapped and every parameter tuned
without touching the code that ships in the product.

Entry point: `python -m tuning.app` (the Gradio cockpit). Programmatic entry:
`tuning.harness.run_recipe(address, recipe, cache)`.
"""