Use explicit Python 3.11 for all-in-one build

backend/tests/test_sprint31_unraid_template.py

@@ -68,7 +68,9 @@ def test_unraid_all_in_one_runtime_starts_embedded_postgis_backend_and_nginx() -
     dockerignore = (ROOT / ".dockerignore").read_text(encoding="utf-8")
 
     assert "FROM postgis/postgis:16-3.5 AS runtime" in dockerfile
-    assert "ln -sf python3.11 /usr/bin/python3" in dockerfile
+    assert "ln -sf /usr/bin/python3.11 /usr/local/bin/python3" in dockerfile
+    assert "ln -sf /usr/bin/python3.11 /usr/bin/python3" in dockerfile
+    assert "/usr/bin/python3.11 -m venv /opt/geointel/venv" in dockerfile
     assert "python3-pip" not in dockerfile
     assert "python3-venv" not in dockerfile
     assert "COPY --from=frontend-build /frontend/dist/ /usr/share/nginx/html/" in dockerfile

deploy/unraid/Dockerfile.all-in-one

@@ -28,7 +28,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libproj-dev \
     nginx \
     proj-bin \
-    && ln -sf python3.11 /usr/bin/python3 \
+    && ln -sf /usr/bin/python3.11 /usr/local/bin/python3 \
+    && ln -sf /usr/bin/python3.11 /usr/bin/python3 \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
@@ -39,7 +40,7 @@ COPY deploy/unraid/nginx-all-in-one.conf /etc/nginx/conf.d/default.conf
 COPY deploy/unraid/all-in-one-start.sh /usr/local/bin/geointel-all-in-one-start
 COPY --from=frontend-build /frontend/dist/ /usr/share/nginx/html/
 
-RUN python3 -m venv /opt/geointel/venv \
+RUN /usr/bin/python3.11 -m venv /opt/geointel/venv \
     && pip install --no-cache-dir --upgrade pip setuptools \
     && pip install --no-cache-dir ".[gis]" \
     && python scripts/gis_import_smoke.py \