pub fn render_timeseries_csv(input_dir: &Path, strict: bool) -> Result<String>Expand description
Long, tidy time-series CSV with one row per (run × time-offset × metric).
This is the graph-ready export for values plotted over the test. Filter by
metric and group by (scenario, stack, run_tag) to draw lines.
§Errors
Returns an error when input data is invalid, required I/O fails, or the destination rejects the generated report or audit event.