Early-warning and disaster-response common operating picture (COP) demo for Australian Defence, built on Databricks. Replays TC Jasper (Dec 2023, Cairns/FNQ) in 4D — cyclone track, Holland-model wind field, DEM-derived flood evolution, building damage, road closures, force readiness — with a LIVE toggle streaming real BOM warnings and QLDTraffic road events, and an AI SITREP generator (Claude via FMAPI).

All source data is public: IBTrACS best track, Overture Maps buildings, OurAirports, AWS terrain tiles, BOM anonymous FTP, QLDTraffic open API. Synthetic layers (damage, readiness, flood) are deterministic (seed=42) and clearly labelled in data/README.md.

• Data: single UC schema au_pubsec_catalog.hadr (18 flat tables) on the au-pubsec workspace; serving cache layer_frames = 11 layers × 112 ticks of precomputed JSON. See data/README.md for shapes and re-run instructions.
• Backend (backend/): FastAPI. Loads layer_frames into memory at startup (scrubbing never hits the warehouse); async pollers for QLDTraffic (5 min) and BOM (10 min) with best-effort appends to live_* tables; /api/sitrep calls databricks-claude-sonnet-4-6.
• Frontend (ui/): Vite + React 19 + TS + Tailwind, deck.gl v9 over MapLibre (ESRI satellite basemap). Extruded Overture buildings colored by damage class, H3 wind cells, flood GeoJSON, animated track + forecast cone, time scrubber, REPLAY↔LIVE toggle, runway go/no-go click cards, SITREP drawer.

# Backend (terminal 1)
uv venv .venv-app && source .venv-app/bin/activate && uv pip install -r requirements.txt
DATABRICKS_CONFIG_PROFILE=au-pubsec python -m backend.main

# Frontend (terminal 2) — proxies /api to :8000
cd ui && bun install && bun run dev

One-time: python scripts/export_buildings.py writes backend/static/buildings.geojson.gz (70k footprints, ~4 MB).

./scripts/deploy.sh            # build UI, sync source, deploy app 'hadr-command'

Post-create wiring (first deploy only):

1. Attach the SQL warehouse as an app resource named sql-warehouse (id 083bec41aa3ab495, permission CAN_USE) — matches app.yml's valueFrom.
2. Grant the app service principal: USE CATALOG on au_pubsec_catalog, USE SCHEMA + SELECT on au_pubsec_catalog.hadr, MODIFY on live_qldtraffic_events and live_bom_warnings, and CAN_QUERY on the databricks-claude-sonnet-4-6 serving endpoint.

app.yml, requirements.txt     Databricks Apps runtime
backend/                      FastAPI (config, dbx, frames, pollers, sitrep, main)
ui/                           React + deck.gl frontend
data/                         UC ingestion + synthetic generation (see data/README.md)
sql/create_tables.sql         DDL
scripts/                      deploy.sh, export_buildings.py
design/claude_design_prompt.md  UI design brief for Claude Design
docs/                         demo script + screenshots