Add PORTING.md: concise guide for downloading, regridding ICON, and sampling NetCDF; includes architecture and copy-paste snippets

Auto resolution now as fine as native (no oversampling); fix cfgrib fallback time handling; update UI label

Add map sampling workflow: store NC path, use gradio Map to pick lat/lon and read nearest value; remove resolution UI

Fix time coordinate: support numpy.datetime64 without astimezone; normalize to numpy.datetime64 UTC

ICON unstructured grid fix: fetch CLAT/CLON coordinate GRIB2 and derive lat/lon when cfgrib lacks coordinates

Switch to direct DWD download path exclusively; remove GribMagic venv and related env; keep in-memory regrid

Use GribMagic for acquisition only; regrid in-memory (nearest-neighbor) for speed; add scripts/__init__.py

Fix runtime issues: add wget; redirect GribMagic data to XDG_DATA_HOME=/var/spool/gribmagic to avoid permission errors

Work around PyYAML sdist build: use --no-build-isolation with latest setuptools/wheel/cython in gribmagic venv

Align deps with GribMagic README: apt installs libeccodes0 and cdo; set ECCODES_DEFINITION_PATH

Fix GribMagic venv build: preinstall setuptools<60, wheel, cython; pre-pin PyYAML 5.4.1, cdo, cfgrib to satisfy old deps

Isolate GribMagic in its own venv to avoid dependency conflicts; use GM_BIN in pipeline; restore modern requests/xarray in main env

Resolve pip conflict: pin requests<2.26 and install gribmagic from GitHub via PEP 508 direct URL

Install GribMagic from GitHub and add git to Docker apt deps

Integrate GribMagic pipeline: download via gribmagic dwd acquire, regrid via gribmagic smith, convert to NetCDF; add cdo and GM_DATA_PATH

Use cfgrib as primary reader for ICON unstructured grids; fall back to pygrib when possible

Write outputs to /data with open perms; use ICON_OUT_DIR env; fix permission denied

Add gradio to requirements to fix ModuleNotFoundError at runtime

Fix Dockerfile for Debian trixie: drop non-existent eccodes-tools, add libeccodes-data

Fix Dockerfile: use eccodes-tools, add pkg-config and openjpeg/png/zlib dev libs for pygrib build

Add ICON GRIB2→NetCDF pipeline with auto coarse grid, Gradio app, Dockerfile, and HF deps

initial commit