refactor: remove legacy build probe and database URL normalization scripts; update Dockerfile and docker-compose for cleaner setup

Dockerfile

@@ -4,9 +4,6 @@ ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 ENV PYTHONPATH=/app
 
-ARG BUILD_ID=dev
-ARG BUILD_TIME_UTC=unknown
-
 RUN apt-get update \
     && apt-get install -y --no-install-recommends build-essential git \
     && rm -rf /var/lib/apt/lists/*
@@ -26,9 +23,6 @@ COPY federation_authority /app/federation_authority
 COPY provider /app/provider
 COPY relying_party /app/relying_party
 
-RUN sh -lc 'find /app/federation_authority /app/provider /app/relying_party /app/scripts -type f | sort | xargs sha256sum | sha256sum | awk "{print \$1}" > /app/__buildfingerprint__'
-RUN printf '{\"build_id\":\"%s\",\"built_at_utc\":\"%s\",\"image_marker\":\"cie-auth-image\"}\n' \"$BUILD_ID\" \"$BUILD_TIME_UTC\" > /app/__buildinfo__.json
-
 COPY entrypoint.sh /entrypoint.sh
 COPY scripts /app/scripts
 RUN chmod +x /entrypoint.sh