…ed_params

The upper bound of the runtime consumption_dollars action grid used to
be a module-level constant in `baseline/regimes/_common.py`, with a
TODO to route through `fixed_params` once pylcm could surface
grid-level scalars in the params template. pylcm#348 lands that.

* `baseline/regimes/_common.py`: declare the grid as
  `IrregSpacedGrid(..., extra_param_names=("max_consumption_dollars",))`
  so the template gains a `ScalarFloat` slot per regime alongside
  `points`.
* `consumption_dollars_grid.py`:
  - Drop the module-level `MAX_CONSUMPTION_DOLLARS` constant.
  - `_compute_consumption_dollars_points` takes the bound as a
    parameter.
  - `inject_consumption_dollars_points` reads it from
    `model.fixed_params["max_consumption_dollars"]` (alongside
    `exponent`), then threads it into the gridpoint computation.
* `_benchmark_data/benchmark_params.pkl`: regenerated so
  `fixed_params["max_consumption_dollars"]` is populated from the
  refreshed aca-data env constants.
* CI temporarily pinned to pylcm@feat/runtime-grid-extra-params;
  revert to @main once pylcm#348/#350 merge.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>