final try 3

Dockerfile

@@ -7,10 +7,20 @@ RUN addgroup --system app && adduser --system --ingroup app app
 WORKDIR /app
 
 # system deps for Qdrant and psycopg2, cleanup
+ # … earlier lines unchanged …
+
 RUN apt-get update \
- && apt-get install -y --no-install-recommends build-essential wget ca-certificates \
- && apt-get clean \
- && rm -rf /var/lib/apt/lists/*
+&& apt-get install -y --no-install-recommends build-essential wget ca-certificates \
+&& apt-get install -y --no-install-recommends \
+     build-essential \
+     wget \
+     ca-certificates \
+     libpq-dev \
+&& apt-get clean \
+&& rm -rf /var/lib/apt/lists/*
+
+ # … rest of file unchanged …
+
 
 # copy and install Python reqs
 COPY app/requirements.txt /app/requirements.txt