v1.1.0: headerless mode for audits printed without row/column headings

Sniffs the format on page 1: printed row numbers -> gridded mode
(unchanged); UUID-keyed rows -> new headerless mode, which anchors rows
on per-record UUIDs and takes the column map from the page-1 header
labels. Handles fused cells (ID+Name+Org+networks), mid-value line
wraps, two-timestamp Time Frame ranges, wrapped header labels, and
per-export schema drift. Validated against three monthly JC PD audits:
120/120 cross-engine spot checks, 0 anomalies, field-identical to the
standalone converter it replaces.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012bQ28wRBiQYcSR9FzV9U7c

VERIFICATION.md

@@ -61,3 +61,38 @@ diffing against known-good output or by a check line going red:
   absent: the export was truncated at the ceiling, and roughly 17% of the
   original records are estimated to be missing. All totals from the file
   are floors.
+
+# Headerless mode (v1.1.0)
+
+Validated against three monthly Johnson City TN PD audit PDFs printed via
+"Microsoft Print to PDF" without headings (48/74/69 pages; 2,032 / 2,437 /
+2,607 rows).
+
+Checks passed on all three:
+
+1. **Cross-engine spot check.** 40 random rows per file re-verified
+   against pdftotext: 120/120 after making the probes wrap-tolerant (a
+   cell that wraps mid-value in the PDF never appears as one contiguous
+   string in any text extractor's output — probe fragments, not lines).
+2. **Range sanity.** Every two-timestamp Time Frame parses and runs
+   start <= end (7,074 ranges, 0 disordered).
+3. **Anomaly counters at zero**: no bad UUIDs, no unplaced runs, no
+   strays in the Name/Org windows.
+
+Bugs the checks caught during development:
+
+- **Wrapped header labels** ('Total Networks ' / 'Searched' on stacked
+  runs) made a whole column invisible to name-matching; its values landed
+  in the Org Name window and were silently overwritten. Fixed by merging
+  stacked header runs; guarded by the strays counter.
+- **A false-alarm verification failure**: 43 spot-checks "failed" because
+  the probe assumed cells appear contiguously in pdftotext output. Glyph
+  level inspection proved the CSV was right and the check was naive.
+  Kept here as a reminder: verify the verifier before trusting a red
+  result.
+
+Schema drift is real: of the three sibling exports, one has all 13
+columns, two lack License Plate entirely, and Total Networks Searched
+moves between its own column and being fused into the ID run. Headerless
+mode takes each file's schema from its own header and reports what's
+absent.