**Features:** - Replace internal custom parameter keys with CF standard_name as the canonical identifier. - Introduce central Param registry/Enum using CF names as primary keys. - Refactor readers and pipeline to operate exclusively on CF identifiers. - Add alias resolution layer for legacy names (e.g. "temperature" --> "sea_water_temperature"). - Keep existing constants as backward-compatible aliases (with deprecation notice). - Ensure NetCDF export always sets correct CF standard_name attribute. - Add configurable output schema: "default" (CF) and "short" (legacy short names), with a clear extension point for future schemas.
Features: