Municipals: nest 1,823 city officeholders under their real counties

Pull Atlas's place→county crosswalk (Census TIGER 2024 places × county
geometries, 32,041 places) into the build as a committed raw input, and
use it to resolve municipal officeholders whose county was unknown.

- data/place_county_crosswalk.jsonl — new raw input (place_geoid → county_geoid)
- build.py — place-name+state → county_geoid → ACS county slug as a fallback
  in county_slug(); city_slug() generalized to non-FL bare place labels
- data/sources/sources.yaml — provenance entry for the crosswalk

_unresolved municipals: 1919 → 58. The remainder are genuine: CT planning
regions (post-county), county-level rows mislabeled municipal upstream,
consolidated city-counties (null label), Wikidata-QID placeholder names,
and ambiguous same-name places — left unresolved rather than guessed.

Join key is county_geoid (5-digit FIPS); the directory slug is taken from
the ACS county node so municipals nest under the exact existing county dir.
Deterministic (byte-identical rebuild); validate.py passes 19,721 records.

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

data/jurisdictions/us/states/oh/counties/allen/index.md

@@ -32,7 +32,7 @@ timestamp: "2026-07-03"
 
 # Allen County, OH
 
-County jurisdiction.
+County jurisdiction — 2 officeholders mapped.
 
 ## Demographics (ACS 2023)
 

data/jurisdictions/us/states/oh/counties/allen/municipalities/delphos/people/andre-mcconnahea.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Andre McConnahea"
+description: "Mayor, Delphos, OH"
+role: "Mayor, Delphos, OH"
+level: "municipal"
+branch: "executive"
+state: "OH"
+tenure:
+  start: "2026-06-20"
+  current: true
+ids:
+  person: "466855cf-cce2-4a34-96e4-b9724ff1368c"
+  office: "851074a5-5698-4095-9802-758944df0aba"
+  tenure: "81fe2d3b-2997-4201-a9c3-0a6900e2087c"
+  jurisdiction: "1a9d7032-605f-409c-8c4d-d8898f4555e0"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, oh]
+timestamp: "2026-07-04"
+---
+
+# Andre McConnahea
+
+Current Mayor, Delphos, OH.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).

data/jurisdictions/us/states/oh/counties/allen/municipalities/lima/people/sharetta-smith.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Sharetta Smith"
+description: "Mayor, Lima, OH"
+role: "Mayor, Lima, OH"
+level: "municipal"
+branch: "executive"
+state: "OH"
+tenure:
+  start: "2021-11-01"
+  current: true
+ids:
+  person: "cdc5da1c-b388-4d7c-94b5-51747fb08d5c"
+  office: "57a8ffec-5fd9-45eb-b498-7deda30b8807"
+  tenure: "8e23b71e-0130-4076-8c63-d3cf2149e7ce"
+  jurisdiction: "6f7ad5f5-00a7-4425-a68f-ad96c8c07ed7"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, oh]
+timestamp: "2026-07-04"
+---
+
+# Sharetta Smith
+
+Current Mayor, Lima, OH.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).