Generate JSON and HTML reports

uv run cp-validate experiment.h5ad --report out/report.json
uv run cp-validate experiment.h5ad --report out/report.html --force

Format is inferred from the suffix (.json or .html). The console report still prints unless --quiet is set.

From Python:

from pathlib import Path
from cp_anndata_validator import validate
from cp_anndata_validator.reporting import render_html, render_json

report = validate("experiment.h5ad")
Path("report.json").write_text(render_json(report))
Path("report.html").write_text(render_html(report))

HTML output escapes user-controlled strings. Reports avoid dumping large or sensitive matrix values.