diff --git a/Dockerfile.cicd b/Dockerfile.cicd
index a146cfb..9e1b447 100644
--- a/Dockerfile.cicd
+++ b/Dockerfile.cicd
@@ -178,15 +178,17 @@ RUN echo "=== Installing Backend Package in Development Mode ===" && \
 WORKDIR /workspace
 RUN echo "=== Installing Pre-commit Hook Environments ===" && \
     if [ -f ".pre-commit-config.yaml" ]; then \
-        # pre-commit expects a git repository; create a temporary one for CI image prewarming.
-        git init /workspace >/dev/null 2>&1 || true && \
-        cd backend && \
+        # pre-commit requires a git repo at runtime; keep it in the final image.
+        git config --global user.email "ci@cicd" && \
+        git config --global user.name "CICD" && \
+        git init /workspace && \
+        git -C /workspace add -A && \
+        cd /workspace/backend && \
         if uv run pre-commit install-hooks; then \
             echo "✓ Pre-commit hook environments installed successfully"; \
         else \
             echo "⚠ pre-commit hook prewarming failed; continuing"; \
-        fi && \
-        rm -rf /workspace/.git; \
+        fi; \
     else \
         echo "No .pre-commit-config.yaml found, skipping hook installation"; \
     fi