limpidR 0.1.0

• Initial research-software release candidate.
• Bundled LIMPID-India v1.0.0 example data model.
• Database structural validation and unit harmonization.
• Abundance, morphology, size and polymer summaries.
• Compositional closure, CLR transforms and Aitchison distance.
• Lognormal and Gamma abundance modelling.
• Leave-one-group-out cross-validation, defaulting to Lake_ID.
• Transparent risk components without hard-coded hazard weights.
• Relative hotspot classification and map visualizations.
• Explicit refusal of unsupported depth-profile inference.