fix: set M87_BOOTSTRAP_KEY in CI .env to match API key

docker-compose.yml sets M87_BOOTSTRAP_KEY=${M87_BOOTSTRAP_KEY:-m87-dev-key-change-me}
which always populates the env var in the container (even with the default).
The Python fallback `os.getenv("M87_BOOTSTRAP_KEY", os.getenv("M87_API_KEY", ...))`
never reaches M87_API_KEY because docker-compose already set BOOTSTRAP_KEY.

Result: Redis gets seeded with "m87-dev-key-change-me" while proof-test.sh
sends "m87-ci-test-key" via X-M87-Key header → "Invalid API key".

Fix: explicitly set M87_BOOTSTRAP_KEY=m87-ci-test-key in CI .env so the
seeded key matches what proof-test.sh sends.

https://claude.ai/code/session_01DAuwxwQQoyHFHbmumedqob

Author: claude

.github/workflows/ci.yml

@@ -56,6 +56,7 @@ jobs:
       - name: Create .env file
         run: |
           echo "M87_API_KEY=m87-ci-test-key" > .env
+          echo "M87_BOOTSTRAP_KEY=m87-ci-test-key" >> .env
           echo "M87_ENABLE_TEST_ENDPOINTS=true" >> .env
           echo "POSTGRES_PASSWORD=ci-test-password" >> .env