Sync: officeholders v3 — fresh export from live Atlas DB (13,329 tenures)

Re-exported directly from Postgres (10.0.0.116), not Atlas's introspection,
which under-reported the roster (its v3 export had 11,473, missing the
restored Florida League of Cities municipal set). Live DB current tenures:
state 7,561 · municipal 4,009 · county 1,217 · federal 542.

- build.py now reads officeholders-v3.jsonl (was v2); dataset vintage 2026-07-04
- fixed one corrupt start_date at source-export (21021-12-03 -> 2021-12-03,
  Lorraine Borowski, Mayor of Decorah IA)
- scripts/build_viz.py: committed, deterministic generator for the Board's
  county_data.json / county_detail.json (previously built ad-hoc)
- generate_changelog.py: ignore files whose only change is the vintage stamp,
  so the diff reflects government change, not re-export bookkeeping

Person files 11,285 -> 13,329. Non-FL municipal officials (1,903) are in the
tree but not yet county-mappable (place->county crosswalk still NULL).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

scripts/build_viz.py

@@ -0,0 +1,132 @@
+#!/usr/bin/env python3
+"""Rebuild the Board's viz data from the officeholders export + ACS counties.
+
+The Board (viz/board.html) is a rebuilt *view* of the canonical tree, never a
+source. This regenerates its two companions deterministically:
+
+  viz/county_data.json    {fips: {name, state, pop, income, poverty, home,
+                           unemp, oh}}  — nationwide choropleth + officeholder
+                           count per county.
+  viz/county_detail.json  {fips: {slug, county:[{n,r}], munis:[{m, p:[{n,r}]}]}}
+                           — per-county drill-down roster.
+
+County/municipal officials are mapped to a county the same way build.py places
+them in the tree (county_slug / city helpers), so the viz and the tree agree by
+construction. Officials whose county can't be resolved to an ACS FIPS (e.g. the
+non-FL municipal rows still blocked on the place->county crosswalk) are counted
+in the tree but do not appear in the county-keyed viz — an honest gap, not a
+silent drop; the tally is printed at the end.
+
+Deterministic: sorted iteration, fixed key order. Two runs are byte-identical.
+"""
+
+import json
+import re
+import sys
+from collections import defaultdict
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+import build  # noqa: E402  — reuse the exact tree-placement helpers
+
+DATA = build.DATA
+VIZ = build.REPO / "viz"
+
+
+def city_name(rec):
+    """Human city label for a municipal rec (matches the tree's municipality)."""
+    m = re.match(r"(.+?),\s*[A-Z]{2}$", rec.get("jurisdiction_label") or "")
+    if m:
+        return m.group(1).strip()
+    m = re.match(r"Mayor of (.+)$", rec.get("title") or "")
+    if m:
+        return m.group(1).strip()
+    return build.city_slug(rec).replace("-", " ").title()
+
+
+def main():
+    officeholders = build.load("officeholders-v3.jsonl")
+    acs_county = build.load("acs_county.jsonl")
+
+    # slug -> fips, and fips -> (name, state, demographics), deduped by fips
+    slug_to_fips = {}
+    county_meta = {}
+    for row in sorted(acs_county, key=lambda r: build.canonical_fips(r["county_fips"])):
+        cf = build.canonical_fips(row["county_fips"])
+        if cf in county_meta:
+            continue
+        st = row.get("state_abbr")
+        if not st:
+            continue
+        base = re.sub(r",\s*[A-Z]{2}$", "", row.get("county_name") or "")
+        cslug = build.slugify(build.norm_county(re.sub(r"\s+County$", "", base)))
+        demog = build.normalize_demog(row)
+        county_meta[cf] = {"name": base, "state": st, "slug": cslug, "demog": demog}
+        slug_to_fips[(st.lower(), cslug)] = cf
+
+    # officials grouped by resolved county key (state, slug)
+    oh_count = defaultdict(int)
+    county_roster = defaultdict(list)          # key -> [(name, role)]
+    muni_roster = defaultdict(lambda: defaultdict(list))  # key -> city -> [(name, role)]
+    unresolved = 0
+    for rec in officeholders:
+        if rec["level"] not in ("county", "municipal"):
+            continue
+        key = ((rec.get("state_abbr") or "").lower(), build.county_slug(rec))
+        oh_count[key] += 1
+        name = rec.get("full_name") or rec.get("title") or "Unknown"
+        role = rec.get("title") or ""
+        if rec["level"] == "county":
+            county_roster[key].append((name, role))
+        else:
+            muni_roster[key][city_name(rec)].append((name, role))
+        if key not in slug_to_fips:
+            unresolved += 1
+
+    # ---- county_data.json (nationwide) ----
+    county_data = {}
+    for cf, meta in sorted(county_meta.items()):
+        d = meta["demog"]
+        key = (meta["state"].lower(), meta["slug"])
+        county_data[cf] = {
+            "name": meta["name"],
+            "state": meta["state"],
+            "pop": d.get("population"),
+            "income": d.get("median_household_income"),
+            "poverty": d.get("poverty_rate"),
+            "home": d.get("homeownership_rate"),
+            "unemp": d.get("unemployment_rate"),
+            "oh": oh_count.get(key, 0),
+        }
+
+    # ---- county_detail.json (only counties with resolved officials) ----
+    county_detail = {}
+    keys_with_people = set(county_roster) | set(muni_roster)
+    for key in keys_with_people:
+        cf = slug_to_fips.get(key)
+        if cf is None:
+            continue
+        county = [{"n": n, "r": r} for n, r in sorted(county_roster.get(key, []))]
+        munis = []
+        for city in sorted(muni_roster.get(key, {})):
+            people = [{"n": n, "r": r} for n, r in sorted(muni_roster[key][city])]
+            munis.append({"m": city, "p": people})
+        county_detail[cf] = {"slug": key[1], "county": county, "munis": munis}
+    county_detail = {k: county_detail[k] for k in sorted(county_detail)}
+
+    VIZ.mkdir(exist_ok=True)
+    (VIZ / "county_data.json").write_text(
+        json.dumps(county_data, ensure_ascii=False, sort_keys=True) + "\n")
+    (VIZ / "county_detail.json").write_text(
+        json.dumps(county_detail, ensure_ascii=False, sort_keys=True) + "\n")
+
+    total_oh = sum(oh_count.values())
+    print(f"county_data.json:   {len(county_data)} counties, "
+          f"{sum(1 for v in county_data.values() if v['oh'])} with officeholders")
+    print(f"county_detail.json: {len(county_detail)} counties with rosters")
+    print(f"officials mapped: {total_oh - unresolved}/{total_oh}  "
+          f"(county-unresolvable, tree-only: {unresolved})")
+
+
+if __name__ == "__main__":
+    main()