Close the institutional gap: bodies, committees, leadership

The seat data answered 'who represents this place?' but not 'who runs
this institution?' — the Speaker of the House existed only as the rep
for LA-4. This adds the missing axis of institutional power.

New Body entities (233): the U.S. House, U.S. Senate, Executive Office,
49 committees, 181 subcommittees — each with its leadership.

Federal people (532/542) enriched with bioguide IDs, leadership roles,
and committee seats, reconciled from congress-legislators by name.
Mike Johnson is now Speaker of the House, not just LA-4.

Sources ingested directly into the repo (repo-canonical): Atlas
supplied bodies/leadership/committee_memberships via congress-legislators,
committed raw in data/. build.py supersedes convert_officeholders.py and
reads all four inputs in one deterministic pass (byte-identical on rerun).

The 10 unenriched federal records are a finding, not a bug: vacancies,
the President, and ~5 seats where Atlas's roster disagrees with the
authoritative current roster — model-vs-reality discrepancies to surface.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

data/jurisdictions/us/bodies/house/committees/agriculture/subcommittees/commodity-markets-digital-assets-and-rural-development.md

@@ -0,0 +1,37 @@
+---
+type: Body
+title: "House Committee on Agriculture - Commodity Markets, Digital Assets, and Rural Development"
+classification: "subcommittee"
+chamber: "house"
+code: "HSAG22"
+parent: "us/bodies/house/committees/agriculture"
+leadership:
+  - person: "Dusty Johnson"
+    role: "chair"
+  - person: "Donald G. Davis"
+    role: "ranking-member"
+  - person: "John W. Rose"
+    role: "vice-chair"
+sources:
+  - field: definition
+    source: congress-legislators (unitedstates project)
+confidence: official
+tags: [body, subcommittee, house]
+timestamp: "2026-07-03"
+---
+
+# House Committee on Agriculture - Commodity Markets, Digital Assets, and Rural Development
+
+Subcommittee (house).
+
+## Leadership
+
+- chair: Dusty Johnson
+- ranking-member: Donald G. Davis
+- vice-chair: John W. Rose
+
+22 members (see each member's file for their seat on this body).
+
+## Source
+
+- definition: congress-legislators (unitedstates project)

data/jurisdictions/us/bodies/house/committees/agriculture/subcommittees/conservation-research-and-biotechnology.md

@@ -0,0 +1,37 @@
+---
+type: Body
+title: "House Committee on Agriculture - Conservation, Research, and Biotechnology"
+classification: "subcommittee"
+chamber: "house"
+code: "HSAG14"
+parent: "us/bodies/house/committees/agriculture"
+leadership:
+  - person: "Frank D. Lucas"
+    role: "chair"
+  - person: "Jill N. Tokuda"
+    role: "ranking-member"
+  - person: "James R. Baird"
+    role: "vice-chair"
+sources:
+  - field: definition
+    source: congress-legislators (unitedstates project)
+confidence: official
+tags: [body, subcommittee, house]
+timestamp: "2026-07-03"
+---
+
+# House Committee on Agriculture - Conservation, Research, and Biotechnology
+
+Subcommittee (house).
+
+## Leadership
+
+- chair: Frank D. Lucas
+- ranking-member: Jill N. Tokuda
+- vice-chair: James R. Baird
+
+19 members (see each member's file for their seat on this body).
+
+## Source
+
+- definition: congress-legislators (unitedstates project)

data/jurisdictions/us/bodies/house/committees/agriculture/subcommittees/forestry-and-horticulture.md

@@ -0,0 +1,37 @@
+---
+type: Body
+title: "House Committee on Agriculture - Forestry and Horticulture"
+classification: "subcommittee"
+chamber: "house"
+code: "HSAG15"
+parent: "us/bodies/house/committees/agriculture"
+leadership:
+  - person: "Dan Newhouse"
+    role: "chair"
+  - person: "Andrea Salinas"
+    role: "ranking-member"
+  - person: "Barry Moore"
+    role: "vice-chair"
+sources:
+  - field: definition
+    source: congress-legislators (unitedstates project)
+confidence: official
+tags: [body, subcommittee, house]
+timestamp: "2026-07-03"
+---
+
+# House Committee on Agriculture - Forestry and Horticulture
+
+Subcommittee (house).
+
+## Leadership
+
+- chair: Dan Newhouse
+- ranking-member: Andrea Salinas
+- vice-chair: Barry Moore
+
+11 members (see each member's file for their seat on this body).
+
+## Source
+
+- definition: congress-legislators (unitedstates project)

data/jurisdictions/us/bodies/house/committees/agriculture/subcommittees/general-farm-commodities-risk-management-and-credit.md

@@ -0,0 +1,37 @@
+---
+type: Body
+title: "House Committee on Agriculture - General Farm Commodities, Risk Management, and Credit"
+classification: "subcommittee"
+chamber: "house"
+code: "HSAG16"
+parent: "us/bodies/house/committees/agriculture"
+leadership:
+  - person: "Austin Scott"
+    role: "chair"
+  - person: "Sharice Davids"
+    role: "ranking-member"
+  - person: "David Rouzer"
+    role: "vice-chair"
+sources:
+  - field: definition
+    source: congress-legislators (unitedstates project)
+confidence: official
+tags: [body, subcommittee, house]
+timestamp: "2026-07-03"
+---
+
+# House Committee on Agriculture - General Farm Commodities, Risk Management, and Credit
+
+Subcommittee (house).
+
+## Leadership
+
+- chair: Austin Scott
+- ranking-member: Sharice Davids
+- vice-chair: David Rouzer
+
+19 members (see each member's file for their seat on this body).
+
+## Source
+
+- definition: congress-legislators (unitedstates project)

data/jurisdictions/us/bodies/house/committees/agriculture/subcommittees/livestock-dairy-and-poultry.md

@@ -0,0 +1,37 @@
+---
+type: Body
+title: "House Committee on Agriculture - Livestock, Dairy, and Poultry"
+classification: "subcommittee"
+chamber: "house"
+code: "HSAG29"
+parent: "us/bodies/house/committees/agriculture"
+leadership:
+  - person: "Tracey Mann"
+    role: "chair"
+  - person: "Jim Costa"
+    role: "ranking-member"
+  - person: "Derrick Van Orden"
+    role: "vice-chair"
+sources:
+  - field: definition
+    source: congress-legislators (unitedstates project)
+confidence: official
+tags: [body, subcommittee, house]
+timestamp: "2026-07-03"
+---
+
+# House Committee on Agriculture - Livestock, Dairy, and Poultry
+
+Subcommittee (house).
+
+## Leadership
+
+- chair: Tracey Mann
+- ranking-member: Jim Costa
+- vice-chair: Derrick Van Orden
+
+19 members (see each member's file for their seat on this body).
+
+## Source
+
+- definition: congress-legislators (unitedstates project)

data/jurisdictions/us/bodies/house/committees/agriculture/subcommittees/nutrition-and-foreign-agriculture.md

@@ -0,0 +1,37 @@
+---
+type: Body
+title: "House Committee on Agriculture - Nutrition and Foreign Agriculture"
+classification: "subcommittee"
+chamber: "house"
+code: "HSAG03"
+parent: "us/bodies/house/committees/agriculture"
+leadership:
+  - person: "Brad Finstad"
+    role: "chair"
+  - person: "Jahana Hayes"
+    role: "ranking-member"
+  - person: "Monica De La Cruz"
+    role: "vice-chair"
+sources:
+  - field: definition
+    source: congress-legislators (unitedstates project)
+confidence: official
+tags: [body, subcommittee, house]
+timestamp: "2026-07-03"
+---
+
+# House Committee on Agriculture - Nutrition and Foreign Agriculture
+
+Subcommittee (house).
+
+## Leadership
+
+- chair: Brad Finstad
+- ranking-member: Jahana Hayes
+- vice-chair: Monica De La Cruz
+
+19 members (see each member's file for their seat on this body).
+
+## Source
+
+- definition: congress-legislators (unitedstates project)