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/ok/counties/tulsa/index.md

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

data/jurisdictions/us/states/ok/counties/tulsa/municipalities/broken-arrow/people/debra-wimpee.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Debra Wimpee"
+description: "Mayor, Broken Arrow, OK"
+role: "Mayor, Broken Arrow, OK"
+level: "municipal"
+branch: "executive"
+state: "OK"
+tenure:
+  start: "2026-06-20"
+  current: true
+ids:
+  person: "0879ba3a-731d-4ff2-8a4a-8c825fb41106"
+  office: "c0b24c16-6ef0-486c-8cd5-284c5c44a155"
+  tenure: "061feb2a-8795-4144-bff7-17a3da253e7b"
+  jurisdiction: "299542c2-c131-40e9-9b1e-f5de4ca54f56"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, ok]
+timestamp: "2026-07-04"
+---
+
+# Debra Wimpee
+
+Current Mayor, Broken Arrow, OK.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).

data/jurisdictions/us/states/ok/counties/tulsa/municipalities/tulsa/people/monroe-nichols.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Monroe Nichols"
+description: "Mayor, Tulsa, OK"
+role: "Mayor, Tulsa, OK"
+level: "municipal"
+branch: "executive"
+state: "OK"
+tenure:
+  start: "2024-12-02"
+  current: true
+ids:
+  person: "59cbbf86-7c4d-4292-a6c4-196f9bfe3c3e"
+  office: "459d104a-61c1-4ae9-99f0-db1a103b7e8e"
+  tenure: "d95494ff-2313-497d-bc7b-8235308af8ea"
+  jurisdiction: "4cab6fa1-2c55-4c1f-8500-c35c70041b01"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, ok]
+timestamp: "2026-07-04"
+---
+
+# Monroe Nichols
+
+Current Mayor, Tulsa, OK.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).