exocortex-cluster 0.1.0

Exocortex cluster coherence: Chubby-style leases with epoch fencing, HMAC-signed invalidation envelopes, and the SSE change feed.
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# M5 harness: a FalkorDB instance shared by the three exocortex-node
# replicas (falkordb IS the redis coherence layer, ยง9.1 principle 6).
# CI starts the nodes with:
#   docker compose -f docker-compose-cluster.yml up -d falkordb
#   FALKOR_URL=falkor://127.0.0.1:16379 cargo test -p exocortex-cluster --features integration
services:
  falkordb:
    image: falkordb/falkordb:latest
    ports:
      - "16379:6379"
    healthcheck:
      test: ["CMD", "redis-cli", "PING"]
      interval: 1s
      timeout: 3s
      retries: 30
  node1:
    image: exocortex-node:local
    depends_on:
      falkordb:
        condition: service_healthy
    command: ["--mode", "backend-node", "--bind", "0.0.0.0:8081", "--node-id", "node1", "--gossip-addr", "0.0.0.0:8101", "--bearer-token", "dev-bearer", "--storage", "falkor://falkordb:6379", "--cluster-endpoints", "node2:8082,node3:8083"]
    ports:
      - "8081:8081"
  node2:
    image: exocortex-node:local
    depends_on:
      falkordb:
        condition: service_healthy
    command: ["--mode", "backend-node", "--bind", "0.0.0.0:8082", "--node-id", "node2", "--gossip-addr", "0.0.0.0:8102", "--bearer-token", "dev-bearer", "--storage", "falkor://falkordb:6379", "--cluster-endpoints", "node1:8081,node3:8083"]
    ports:
      - "8082:8082"
  node3:
    image: exocortex-node:local
    depends_on:
      falkordb:
        condition: service_healthy
    command: ["--mode", "backend-node", "--bind", "0.0.0.0:8083", "--node-id", "node3", "--gossip-addr", "0.0.0.0:8103", "--bearer-token", "dev-bearer", "--storage", "falkor://falkordb:6379", "--cluster-endpoints", "node1:8081,node2:8082"]
    ports:
      - "8083:8083"