PGx CN: scan-date batch warning (PCN-006), CN-consistent BAF evidence (PCN-010, --bafs-in-cn),

noise-outlier exclusion + robustness test (PCN-017/EDGE-026), platform from the CSV manifest (CLI-032)

Also: star-allele calls are checked for one manifest/build per run (PGX-011), duplications at the CN cap are
named xN (PGX-022), and tandem names attach supporting variants to their full copy.

src/simurg/core/errors.py

@@ -176,6 +176,7 @@ CATALOGUE: dict[str, MessageDef] = dict(
         _m("E_PGX_VCF_UNSUITABLE", "error", "SNV VCF unsuitable for PGx (squashing/locus filters/foreign)", "PGX-011"),
         _m("E_PGX_GUIDELINE", "error", "Guideline tables not present in the PGx DB", "PGX-025"),
         _m("W_PGX_NO_PROBE_MAP", "warning", "The PGx DB has no probe map for this manifest", "PGX-035"),
+        _m("E_PGX_PLATFORM_UNKNOWN", "error", "PGx CN platform (LCG/EX) unknown: give --csv or --platform", "CLI-032"),
         _m("E_PGX_SOURCE", "error", "PGx source tables missing; run scripts/pgx/fetch_sources.sh", "PGX-001"),
         # --- methylation control QC (MET-001 .. MET-018) -------------------------------------------------
         _m("E_METH_NO_ASSAY", "error", "Probe section not found", "MET-002"),