fix(config): Improve Consul config loading and add version info

- Fixes an issue where configuration from Consul was not being loaded correctly due to multiple base64 and encoding issues.
- Adds robust decoding logic with fallbacks to handle different value formats from Consul.
- Adds the Git commit SHA as a version identifier to the Docker image and application logs to improve debuggability.

Dockerfile

@@ -4,6 +4,11 @@ FROM python:3.13-slim
 # Set the working directory in the container
 WORKDIR /app
 
+# Accept the Git commit SHA as a build argument
+ARG COMMIT_SHA
+# Set the Git SHA as an environment variable
+ENV GIT_SHA=${COMMIT_SHA}
+
 # Copy the dependencies file to the working directory
 COPY requirements.txt .