add Dockerfile and HF deployment config

Dockerfile

@@ -0,0 +1,12 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install -r requirements.txt
+
+COPY . .
+
+EXPOSE 7860
+
+CMD ["streamlit", "run", "ui/app.py", "--server.port", "7860", "--server.address", "0.0.0.0"]

requirements.txt

@@ -1,7 +1,8 @@
 requests
 beautifulsoup4
 lxml
-chromadb
-sentence-transformers
+chromadb==0.4.24
+sentence-transformers==2.2.2
 openai
 streamlit
+huggingface_hub

ui/app.py

@@ -12,7 +12,16 @@ import chromadb
 from sentence_transformers import SentenceTransformer
 from openai import OpenAI
 import random
-
+import os
+from huggingface_hub import snapshot_download
+
+if not os.path.exists("data/chroma_db"):
+    os.makedirs("data", exist_ok=True)
+    snapshot_download(
+        repo_id="Daudipdg/iroh-chroma-db",
+        repo_type="dataset",
+        local_dir="data/chroma_db"
+    )
 # --- Config ---
 CHROMA_DIR = "data/chroma_db"
 COLLECTION_NAME = "kenya_law"