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/or/counties/multnomah/index.md

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

data/jurisdictions/us/states/or/counties/multnomah/municipalities/gresham/people/travis-stovall.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Travis Stovall"
+description: "Mayor, Gresham, OR"
+role: "Mayor, Gresham, OR"
+level: "municipal"
+branch: "executive"
+state: "OR"
+tenure:
+  start: "2021-01-05"
+  current: true
+ids:
+  person: "021e40c3-d85f-4ccd-a822-400db3c253ba"
+  office: "8a311bc6-8f3f-4286-a636-495758751e38"
+  tenure: "71bbb172-8dcc-4aaa-aa06-7d81a44c8b84"
+  jurisdiction: "c6cdf25a-b1ab-4858-9b15-790a0590184c"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, or]
+timestamp: "2026-07-04"
+---
+
+# Travis Stovall
+
+Current Mayor, Gresham, OR.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).

data/jurisdictions/us/states/or/counties/multnomah/municipalities/portland/people/keith-wilson.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Keith Wilson"
+description: "Mayor, Portland, OR"
+role: "Mayor, Portland, OR"
+level: "municipal"
+branch: "executive"
+state: "OR"
+tenure:
+  start: "2025-01-01"
+  current: true
+ids:
+  person: "a1d89b5b-9653-48ea-a86e-6bd1ed30a18f"
+  office: "1d43a6f7-3244-444a-821b-7afaf58b9434"
+  tenure: "2e40c6b8-81ad-4e1b-823f-8250951a693d"
+  jurisdiction: "6f64c399-765c-41fa-8255-d99ef28e55d6"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, or]
+timestamp: "2026-07-04"
+---
+
+# Keith Wilson
+
+Current Mayor, Portland, OR.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).

data/jurisdictions/us/states/or/counties/multnomah/municipalities/troutdale/people/randy-lauer.md

@@ -0,0 +1,39 @@
+---
+type: Person
+title: "Randy Lauer"
+description: "Mayor, Troutdale, OR"
+role: "Mayor, Troutdale, OR"
+level: "municipal"
+branch: "executive"
+state: "OR"
+tenure:
+  start: "2021-01-01"
+  current: true
+ids:
+  person: "b1df1549-ff2f-4409-83c0-c240ede561f5"
+  office: "dcce0def-e64f-444f-bfa2-9d1510b50359"
+  tenure: "9661c4b5-165c-4c06-b884-675ee73ae3d7"
+  jurisdiction: "85e0a7bf-4dbc-44a2-a10a-84b19e426897"
+sources:
+  - field: office
+    source: "Wikidata"
+  - field: tenure
+    source: "Wikidata"
+  - field: jurisdiction
+    source: "Census TIGER 2024"
+confidence: official
+tags: [officeholder, municipal, executive, or]
+timestamp: "2026-07-04"
+---
+
+# Randy Lauer
+
+Current Mayor, Troutdale, OR.
+
+## Sources
+
+- office: Wikidata
+- tenure: Wikidata
+- jurisdiction: Census TIGER 2024
+
+Generated from the Atlas officeholders v3 export (2026-07-04).