feat: consolidate idkgng branch features, integrate Go chatbot service, and fix local configurations

chatbot-service/Dockerfile

@@ -0,0 +1,26 @@
+# --- Stage 1: Build the Go binary ---
+FROM golang:1.21-alpine AS builder
+WORKDIR /app
+
+# Copy the source code and configuration files
+COPY . .
+
+# Build a statically linked binary for Linux
+RUN CGO_ENABLED=0 GOOS=linux go build -o chatbot-service .
+
+# --- Stage 2: Create the final minimal image ---
+FROM alpine:latest
+WORKDIR /app
+
+# Install security certificates just in case
+RUN apk --no-cache add ca-certificates
+
+# Copy the binary and data file from the builder stage
+COPY --from=builder /app/chatbot-service .
+COPY --from=builder /app/qna.json .
+
+# Expose port 8081
+EXPOSE 8081
+
+# Run the chatbot service
+CMD ["./chatbot-service"]