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/nc/counties/cleveland/index.md

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

data/jurisdictions/us/states/nc/counties/cleveland/municipalities/kings-mountain/people/rob-wagman.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Rob Wagman"
+description: "Mayor, Kings Mountain, NC"
+role: "Mayor, Kings Mountain, NC"
+level: "municipal"
+branch: "executive"
+state: "NC"
+tenure:
+  start: "2023-12-12"
+  current: true
+ids:
+  person: "85822774-c8d5-42b4-8786-37cc4bd198b2"
+  office: "4d8a7beb-94d0-4859-8c08-0769a17dfcc1"
+  tenure: "e05f1c70-0763-4d46-aac1-dc90317f8808"
+  jurisdiction: "8fa50fc8-719e-4ff3-a7a2-1804b0613100"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, nc]
+timestamp: "2026-07-04"
+---
+
+# Rob Wagman
+
+Current Mayor, Kings Mountain, NC.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).

data/jurisdictions/us/states/nc/counties/cleveland/municipalities/shelby/people/stan-anthony.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Stan Anthony"
+description: "Mayor, Shelby, NC"
+role: "Mayor, Shelby, NC"
+level: "municipal"
+branch: "executive"
+state: "NC"
+tenure:
+  start: "2011-01-01"
+  current: true
+ids:
+  person: "eccf3e2b-dd1c-4af1-8433-6c43a00bf250"
+  office: "40e51359-1225-465d-839b-ad6ba4f481dc"
+  tenure: "13df9c2e-82e2-4795-991e-ae7129960386"
+  jurisdiction: "090cf59e-7e32-4c76-83b7-63d06f918c3e"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, nc]
+timestamp: "2026-07-04"
+---
+
+# Stan Anthony
+
+Current Mayor, Shelby, NC.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).