-- References only: never persist file contents in the control plane.
CREATE TABLE computer_file_dispatches (
    operation_id TEXT PRIMARY KEY REFERENCES computer_operations(id) ON DELETE CASCADE,
    computer_id TEXT NOT NULL REFERENCES computers(id) ON DELETE CASCADE,
    bot_id TEXT NOT NULL REFERENCES bots(id) ON DELETE CASCADE,
    provider_ref TEXT NOT NULL,
    runner_computer_id TEXT NOT NULL,
    generation INTEGER NOT NULL CHECK (generation > 0),
    runner_operation_id TEXT NOT NULL,
    request_hash TEXT NOT NULL,
    action TEXT NOT NULL CHECK (action IN ('write','patch','move')),
    metadata JSONB NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    UNIQUE (computer_id, provider_ref, generation, bot_id, runner_operation_id)
);
CREATE INDEX computer_file_dispatch_scope ON computer_file_dispatches(computer_id, generation, bot_id);