chore(compose): rename docker-compose.* to compose.* (Compose v2 spec)

compose.yaml

@@ -0,0 +1,34 @@
+# compose.yaml — local development.
+#
+# Brings up librenotes on http://localhost:8080 with the magic-link
+# mailer logging links to stdout (no SMTP needed). Data lives in
+# named volumes so `docker compose down` does NOT wipe state.
+# Use `docker compose down -v` for a clean slate.
+services:
+  librenotes:
+    build:
+      context: .
+      args:
+        VERSION: dev
+    image: librenotes:dev
+    ports:
+      - "8080:8080"
+    environment:
+      LIBRENOTES_BASE_URL: "http://localhost:8080"
+      # JWT secret must be at least 32 bytes. Override per-host for
+      # any non-throwaway environment.
+      LIBRENOTES_JWT_SECRET: "dev-secret-32-bytes-of-keymaterial!!"
+    volumes:
+      - notes:/data
+      - state:/var/lib/librenotes
+    healthcheck:
+      test: ["CMD", "/librenotes", "healthcheck"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 5s
+    restart: unless-stopped
+
+volumes:
+  notes:
+  state: