edfe6122b1
1. Kuma import now maps push monitor tokens (generates crypto/rand token) and paused state (Active=false → Paused=true). Previously push monitors imported with empty token sat DOWN forever, and paused Kuma monitors came in unpaused and started alerting. 2. Dockerfile adds HEALTHCHECK against /api/health on port 8080. Container orchestrators can now detect unhealthy instances. 3. migrate-secrets sets the encryptor before loading alerts, so already-encrypted settings are decrypted correctly on second run instead of failing with a JSON unmarshal error. 4. docker-compose.yml adds container hardening: read_only filesystem, cap_drop ALL, no-new-privileges, tmpfs for /tmp.