feat: enhance chat service with documentation indexing and improved Docker configuration

scripts/start_chat.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+# Startup script for chat service with documentation indexing
+
+set -e
+
+echo "=== Datacenter Documentation Chat Service ==="
+echo "Starting initialization..."
+
+# Check if vector store needs initialization
+VECTOR_STORE_PATH="/app/data/chroma_db"
+INDEX_MARKER="$VECTOR_STORE_PATH/.indexed"
+
+if [ ! -f "$INDEX_MARKER" ]; then
+    echo ""
+    echo "=== First Time Setup ==="
+    echo "Indexing documentation into vector store..."
+    echo "This may take a few minutes..."
+    echo ""
+
+    # Run indexing script
+    python /app/scripts/index_docs.py
+
+    # Create marker file to prevent re-indexing
+    if [ $? -eq 0 ]; then
+        mkdir -p "$VECTOR_STORE_PATH"
+        touch "$INDEX_MARKER"
+        echo ""
+        echo "✓ Documentation indexed successfully!"
+    else
+        echo ""
+        echo "⚠ Warning: Documentation indexing failed. Chat will work with limited functionality."
+        echo "  The chat service will still start but won't have access to indexed documentation."
+    fi
+else
+    echo "✓ Vector store already initialized (found marker: $INDEX_MARKER)"
+    echo "  To re-index, delete the volume: docker volume rm datacenter-docs-chat-data-dev"
+fi
+
+echo ""
+echo "=== Starting Chat Server ==="
+echo "Listening on port 8001..."
+echo ""
+
+# Start the chat server
+exec python -m datacenter_docs.chat.main