feat(stilt): JacobianBuilder.build_from_grid (0.1.0b4) - #3

Process completed with exit code 1.

Process completed with exit code 1.

Process completed with exit code 1.

src/fips/problems/flux/transport/stilt/errors.py:140:5: D401 First line of docstring should be in imperative mood: "Calculates the transport error for a given STILT simulation directory."

src/fips/problems/flux/transport/stilt/errors.py:102:5: D401 First line of docstring should be in imperative mood: "Plots the variances of dCH4 for regular and error particles."

src/fips/problems/flux/transport/stilt/errors.py:101:7: F821 Undefined name `matplotlib`

src/fips/problems/flux/transport/stilt/errors.py:70:5: D401 First line of docstring should be in imperative mood: "Calculates the variance of dCH4 for particles in a given trajectory file."

src/fips/problems/flux/transport/stilt/errors.py:40:5: D401 First line of docstring should be in imperative mood: "Calculates the concentration of dCH4 for particles in a given trajectory file."

src/fips/problems/flux/transport/stilt/errors.py:16:5: D401 First line of docstring should be in imperative mood: "Extracts flux values from a flux dataset for given particle locations."

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: astral-sh/setup-uv@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/