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/people/brian-babin.md

@@ -8,6 +8,19 @@ level: "federal"
 branch: "legislative"
 state: "TX"
 district: "Congressional District 36"
+committees:
+  - name: "House Committee on Science, Space, and Technology"
+    role: "chair"
+    body: "us/bodies/house/committees/science-space-and-technology"
+  - name: "House Committee on Transportation and Infrastructure"
+    role: "member"
+    body: "us/bodies/house/committees/transportation-and-infrastructure"
+  - name: "House Committee on Transportation and Infrastructure - Highways and Transit"
+    role: "member"
+    body: "us/bodies/house/committees/transportation-and-infrastructure/subcommittees/highways-and-transit"
+  - name: "House Committee on Transportation and Infrastructure - Water Resources and Environment"
+    role: "member"
+    body: "us/bodies/house/committees/transportation-and-infrastructure/subcommittees/water-resources-and-environment"
 tenure:
   start: "2025-01-03"
   current: true
@@ -20,11 +33,14 @@ ids:
   office: "fe36e66a-f886-4821-bf1b-2bddd6465461"
   tenure: "67253896-6981-4899-9664-d16bb78eea13"
   jurisdiction: "634bf26f-ac3f-4896-a3de-06714e1dcba0"
+  bioguide: "B001291"
 sources:
   - field: tenure
     source: "House Clerk XML 2026-06-10"
   - field: jurisdiction
     source: "Census 119th CD 500k"
+  - field: roles
+    source: "congress-legislators (unitedstates project)"
 confidence: official
 tags: [officeholder, federal, legislative, tx]
 timestamp: "2026-06-20"
@@ -34,9 +50,17 @@ timestamp: "2026-06-20"
 
 Current U.S. House of Representatives - TX-36 (Congressional District 36).
 
+## Committees
+
+- [House Committee on Science, Space, and Technology](/us/bodies/house/committees/science-space-and-technology.md) — **chair**
+- [House Committee on Transportation and Infrastructure](/us/bodies/house/committees/transportation-and-infrastructure.md)
+- [House Committee on Transportation and Infrastructure - Highways and Transit](/us/bodies/house/committees/transportation-and-infrastructure/subcommittees/highways-and-transit.md)
+- [House Committee on Transportation and Infrastructure - Water Resources and Environment](/us/bodies/house/committees/transportation-and-infrastructure/subcommittees/water-resources-and-environment.md)
+
 ## Sources
 
 - tenure: House Clerk XML 2026-06-10
 - jurisdiction: Census 119th CD 500k
+- roles: congress-legislators (unitedstates project)
 
 Generated from the Atlas officeholders v2 export (2026-06-20).