v1.0.0: user guide, examples, changelog

docs/user_guide.md (install, inputs, complete run, commands, presets, QC, outputs,
accuracy, limitations, troubleshooting), examples/gsa_demo.sh (end-to-end run on the
public GSA demo, verified on the Pi), examples/sample_sheet.csv, CHANGELOG.md; version 1.0.0.

examples/README.md

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+# Examples
+
+| File | What it shows |
+|---|---|
+| `gsa_demo.sh` | End-to-end run on the public 36-sample GSA v4 PGx demo: `genotype` (GTC + QC) → `qc report` → `gtc-to-vcf` (per-sample VCF and cohort BCF) → `export plink/bedgraph/finalreport` → `compare`. Needs `scripts/fetch_data.sh p0` and `p6`. `bash examples/gsa_demo.sh results/gsa_demo 6` runs on the first 6 samples only. |
+| `sample_sheet.csv` | Sample-sheet layout: key columns `SentrixBarcode_A`/`SentrixPosition_A`, reported sex, trio (`Parent1`/`Parent2`, used for Mendel errors), a replicate, and a free column (`Batch`) that is carried into the QC table. The sample identities in it are illustrative, not the real demo samples. |
+
+The QC threshold profiles shipped with SimurgArray (`src/simurg/qc/profiles/*.yaml`) are the starting point for a
+`--qc-config` file; `simurg qc suggest-thresholds` derives cohort-specific values. See `docs/user_guide.md`.

examples/gsa_demo.sh

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+#!/usr/bin/env bash
+# End-to-end SimurgArray run on the public GSA v4 PGx demo set (36 samples):
+#   IDAT → GTC + sample QC → HTML QC report → VCF (per sample and cohort BCF) → PLINK / bedGraph / final report.
+#
+# Prerequisites (from the repository root):
+#   uv venv && uv pip install -e .
+#   bash scripts/fetch_data.sh p0      # demo IDATs + manifest + cluster file (~1.4 GB)
+#   bash scripts/fetch_data.sh p6      # GRCh38 FASTA for VCF output (~0.9 GB download)
+#
+# Usage: bash examples/gsa_demo.sh [OUT_DIR] [N_SAMPLES]      (defaults: results/gsa_demo, all 36)
+# Takes ~10 min for 36 samples on a Raspberry Pi 5 (2 worker processes); much less on a desktop.
+set -euo pipefail
+cd "$(dirname "$0")/.."
+OUT=${1:-results/gsa_demo}
+N=${2:-0}
+THREADS=${THREADS:-2}
+SIMURG=${SIMURG:-.venv/bin/simurg}
+
+D=data/p0/gsa_v4_pgx
+BPM=$D/GSA-PGx-48v4-0_20079540_E2_bpm/GSA-PGx-48v4-0_20079540_E2.bpm
+CSV=$D/GSA-PGx-48v4-0_20079540_E2_csv/GSA-PGx-48v4-0_20079540_E2.csv
+EGT=$D/GSA-PGx-48v4-0_20079540_E2_ClusterFile/GSA-PGx-48v4-0_20079540_E2_ClusterFile.egt
+IDATS=$D/idats_Demo_36/idats_Demo_36
+FASTA=data/p6/GRCh38.primary.fa
+for f in "$BPM" "$CSV" "$EGT" "$IDATS" "$FASTA"; do
+  [[ -e $f ]] || { echo "missing $f — run scripts/fetch_data.sh p0 and p6 first"; exit 1; }
+done
+mkdir -p "$OUT"
+
+# Optional subset: symlink the first N IDAT pairs into $OUT/idats (same <barcode>/<barcode>_<pos>_<ch>.idat layout).
+if [[ $N -gt 0 ]]; then
+  rm -rf "$OUT/idats"
+  find "$IDATS" -name '*_Grn.idat' | sort | head -n "$N" | while read -r g; do
+    b=$(basename "$(dirname "$g")"); mkdir -p "$OUT/idats/$b"
+    ln -s "$(realpath "$g")" "$OUT/idats/$b/"; ln -s "$(realpath "${g%_Grn.idat}_Red.idat")" "$OUT/idats/$b/"
+  done
+  IDATS=$OUT/idats
+fi
+
+echo "== 1. inspect the inputs"
+$SIMURG inspect "$BPM" "$EGT" | head -20
+
+echo "== 2. genotype: GTC v5 per sample, sample_summary.tsv, control-probe QC, contamination, relatedness"
+$SIMURG genotype --bpm "$BPM" --egt "$EGT" --csv "$CSV" --idats "$IDATS" --out "$OUT/gtc" \
+  --qc-profile genotyping --threads "$THREADS" --force
+column -t -s$'\t' "$OUT/gtc/sample_summary.tsv" | cut -c1-150 | head -8
+
+echo "== 3. HTML QC report + QC table"
+$SIMURG qc report --data "$OUT/gtc" --out "$OUT/qc_report" --output-format both
+
+echo "== 4. VCF: one bgzipped, tabix-indexed VCF per sample, then one cohort BCF"
+$SIMURG gtc-to-vcf --bpm "$BPM" --csv "$CSV" --fasta "$FASTA" --gtcs "$OUT/gtc" --out "$OUT/vcf" \
+  --threads "$THREADS" --force
+$SIMURG gtc-to-vcf --bpm "$BPM" --csv "$CSV" --fasta "$FASTA" --gtcs "$OUT/gtc" --out "$OUT/bcf" --merge \
+  --threads "$THREADS" --force
+
+echo "== 5. exports"
+$SIMURG export plink --vcfs "$OUT/vcf" --gtcs "$OUT/gtc" --out "$OUT/plink" --format both --force
+$SIMURG export bedgraph --bpm "$BPM" --gtcs "$OUT/gtc" --out "$OUT/bedgraph" --chrom-style ucsc --force
+$SIMURG export finalreport --bpm "$BPM" --csv "$CSV" --egt "$EGT" --gtcs "$OUT/gtc" --out "$OUT/finalreport" --force
+
+echo "== 6. differential test: re-call with the older normalization and compare field by field"
+$SIMURG genotype --bpm "$BPM" --egt "$EGT" --idats "$IDATS" --out "$OUT/gtc_norm112" --norm-version 1.1.2 \
+  --no-controls --no-cohort-qc --threads "$THREADS" --quiet --force
+$SIMURG compare "$OUT/gtc" "$OUT/gtc_norm112" --bpm "$BPM" --out "$OUT/compare" --title "norm 1.2.0 vs 1.1.2" \
+  --threads "$THREADS" --force || true
+
+echo
+echo "Done. Open $OUT/qc_report/*.html and $OUT/compare/dashboard.html in a browser."
+find "$OUT" -maxdepth 2 -type f \( -name '*.html' -o -name '*.bcf' -o -name '*.pgen' -o -name '*.bed' \) | sort

examples/sample_sheet.csv

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+[Header]
+Investigator Name,Example
+Project Name,SimurgArray demo
+[Data]
+Sample_ID,SentrixBarcode_A,SentrixPosition_A,Sample_Plate,Sample_Well,Sex,Parent1,Parent2,Replicate,Batch
+child1,207895980019,R03C01,Plate1,A01,F,father1,mother1,,B1
+father1,207895980019,R03C02,Plate1,B01,M,,,,B1
+mother1,207895980019,R04C01,Plate1,C01,F,,,,B1
+child1_rep,207895980019,R05C01,Plate1,D01,F,,,child1,B2