Fix Docker volume mounts overwriting build-time symlinks

Move pytest command to entrypoint script that recreates symlinks at
runtime. This allows mounting local code with -v without breaking the
symlinks that connect the test runner to the component and test files.

scripts/docker-entrypoint.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# Entrypoint script for Docker container
+# Sets up symlinks at runtime (needed because volume mount overwrites build-time symlinks)
+
+set -e
+
+# Create symlinks with absolute paths so they work after volume mount
+ln -sfn /app/custom_components/adaptive_lighting /core/homeassistant/components/adaptive_lighting
+ln -sfn /app/tests /core/tests/components/adaptive_lighting
+
+# Run pytest with all arguments
+exec python3 -X dev -m pytest \
+    -vvv \
+    --timeout=9 \
+    --durations=10 \
+    --cov='homeassistant' \
+    --cov-report=xml \
+    --cov-report=html \
+    --cov-report=term \
+    --color=yes \
+    -o console_output_style=count \
+    "$@"