Handle CSV files from construction software exports. Auto-detect delimiters, encodings, and clean messy data.
- Added auto-detection of CSV delimiters and file encodings. - Improved data cleaning: trims whitespace, removes empty rows/columns, and standardizes column names. - Allows merging and splitting CSV files by column values. - Introduced intelligent type conversion for numeric and date fields. - Specialized classes for handling construction schedule and cost CSVs.