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/wa/counties/chelan/index.md

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

data/jurisdictions/us/states/wa/counties/chelan/municipalities/chelan/people/erin-mccardle.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Erin McCardle"
+description: "Mayor, Chelan, WA"
+role: "Mayor, Chelan, WA"
+level: "municipal"
+branch: "executive"
+state: "WA"
+tenure:
+  start: "2026-06-20"
+  current: true
+ids:
+  person: "850d65dd-7e30-4d93-b5ea-a0add541eacb"
+  office: "adf6905b-eaa6-4ebe-8b39-e30c0796cde3"
+  tenure: "0beaf1f0-fc60-4390-a75b-5d33143d1b96"
+  jurisdiction: "32181f8b-8ded-4330-9f64-3d5f67eafb29"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, wa]
+timestamp: "2026-07-04"
+---
+
+# Erin McCardle
+
+Current Mayor, Chelan, WA.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).

data/jurisdictions/us/states/wa/counties/chelan/municipalities/leavenworth/people/carl-florea.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Carl Florea"
+description: "Mayor, Leavenworth, WA"
+role: "Mayor, Leavenworth, WA"
+level: "municipal"
+branch: "executive"
+state: "WA"
+tenure:
+  start: "2026-06-20"
+  current: true
+ids:
+  person: "445cbb42-96eb-4ac8-aa5a-f3805d9a766c"
+  office: "bb3999d0-c6b7-44ba-add2-7466a061b473"
+  tenure: "3dd398c4-f118-4261-9908-764303b490b7"
+  jurisdiction: "a32c5641-7306-4d69-98bd-b6e798fe0dcf"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, wa]
+timestamp: "2026-07-04"
+---
+
+# Carl Florea
+
+Current Mayor, Leavenworth, WA.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).

data/jurisdictions/us/states/wa/counties/chelan/municipalities/wenatchee/people/mike-poirier.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Mike Poirier"
+description: "Mayor, Wenatchee, WA"
+role: "Mayor, Wenatchee, WA"
+level: "municipal"
+branch: "executive"
+state: "WA"
+tenure:
+  start: "2024-01-01"
+  current: true
+ids:
+  person: "564bf448-791a-4e0f-a182-f762f2ee5b3b"
+  office: "765ec099-92f1-4688-9d73-b0f2d81570a7"
+  tenure: "c4a44873-48b3-43a5-aae9-4194089f7cff"
+  jurisdiction: "170bea71-5849-44f7-a35a-5bf96f2bda3f"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, wa]
+timestamp: "2026-07-04"
+---
+
+# Mike Poirier
+
+Current Mayor, Wenatchee, WA.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).