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/lake/index.md

@@ -32,7 +32,7 @@ timestamp: "2026-07-03"
 
 # Lake County, OH
 
-County jurisdiction.
+County jurisdiction — 3 officeholders mapped.
 
 ## Demographics (ACS 2023)
 

data/jurisdictions/us/states/oh/counties/lake/municipalities/eastlake/people/jim-overstreet.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Jim Overstreet"
+description: "Mayor, Eastlake, OH"
+role: "Mayor, Eastlake, OH"
+level: "municipal"
+branch: "executive"
+state: "OH"
+tenure:
+  start: "2026-06-20"
+  current: true
+ids:
+  person: "22ccf5a3-8f0d-416d-86a3-213ef03e2438"
+  office: "4e952352-3b19-4bd1-bda9-4eacfd4b9cd1"
+  tenure: "cf707233-5c27-44fb-ba67-b6ce3f6979e4"
+  jurisdiction: "7ef0067e-e9dd-4d21-9606-6a1fd45ce120"
+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"
+---
+
+# Jim Overstreet
+
+Current Mayor, Eastlake, 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/lake/municipalities/wickliffe/people/joe-sakacs.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Joe Sakacs"
+description: "Mayor, Wickliffe, OH"
+role: "Mayor, Wickliffe, OH"
+level: "municipal"
+branch: "executive"
+state: "OH"
+tenure:
+  start: "2026-06-20"
+  current: true
+ids:
+  person: "6f3be096-2fce-413e-9662-2ebbccfaa0e9"
+  office: "1a214044-f342-4bde-a8bf-a77edd608810"
+  tenure: "546a2b90-31d5-4de4-ad5d-a30c28e9e639"
+  jurisdiction: "22adbe55-6b87-4ac4-b4df-aca26ac7df4d"
+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"
+---
+
+# Joe Sakacs
+
+Current Mayor, Wickliffe, 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/lake/municipalities/willoughby/people/robert-a-fiala.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Robert A. Fiala"
+description: "Mayor, Willoughby, OH"
+role: "Mayor, Willoughby, OH"
+level: "municipal"
+branch: "executive"
+state: "OH"
+tenure:
+  start: "2018-01-02"
+  current: true
+ids:
+  person: "b500422b-79cc-457d-90cf-4875a1bc641b"
+  office: "8c7e2410-5fb5-4c7f-982b-4893e93deb25"
+  tenure: "4431892e-ef15-42fe-9d3c-a875f40d31b3"
+  jurisdiction: "5a6abcb6-83a7-462e-b01a-7d23179ae76a"
+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"
+---
+
+# Robert A. Fiala
+
+Current Mayor, Willoughby, OH.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).