Python project deps + package skeleton

Runtime requirements for the FastAPI service, Burr FSM, geo stack,
sentence-transformers (Granite Embedding 278M for RAG), and Ollama
client (Granite 4.1 reconciler). Offline-only deps for fixture
pre-compute live in scripts/, not here.

Empty app/{,assets,context,flood_layers}/__init__.py establish the
package layout that the specialists will fill in.

.gitignore

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+__pycache__/
+*.py[cod]
+*.egg-info/
+.venv/
+.env
+.DS_Store
+outputs/
+node_modules/
+*.tmp
+.ruff_cache/
+.pytest_cache/
+
+# legacy / intermediate Prithvi artifacts (not shipped)
+data/hls_stack_*.tif
+data/prithvi_runs/
+data/*.legacy_*

requirements.txt

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+# Riprap runtime dependencies (deployment).
+# Offline-only deps (py3dep, terratorch, whitebox-workflows) are NOT here
+# — they only run for the one-time fixture pre-compute in scripts/.
+
+# Web + streaming
+fastapi>=0.115
+uvicorn>=0.32
+httpx>=0.27
+pydantic>=2.9
+
+# Geo
+geopandas>=1.0
+shapely>=2.0
+pyproj>=3.6
+fiona>=1.10
+rasterio>=1.4
+
+# Data
+pandas>=2.2
+pyarrow>=18.0
+numpy>=1.26
+
+# RAG: Granite Embedding 278M (CPU torch is sufficient on HF Spaces)
+sentence-transformers>=3.3
+pypdf>=5.0
+
+# Granite 4.1 reconciliation via Ollama
+ollama>=0.4
+
+# Burr FSM
+burr>=0.40
+
+# Misc
+tqdm>=4.66