Avoid cloning durable host call responses

[vigoo]

Summary

• move typed durable host-call responses into HostResponse instead of cloning them before persistence
• return the same owned response through the HostPayloadPair self-roundtrip invariant in both direct and accessor completion paths
• remove the unnecessary Clone bound while keeping replay conversion fallible and classified as unexpected_oplog_entry

Testing

• cargo fmt -p golem-common -p golem-worker-executor -- --check
• cargo clippy -p golem-common -p golem-worker-executor --all-targets --no-deps -- -D warnings
• cargo check -p golem-common -p golem-worker-executor --all-targets
• cargo test -p golem-worker-executor --lib -- access_terminal_end_is_appended_before_cleanup_and_permit_release --report-time
• cargo test -p golem-common --lib -- p3_http_client_consume_body_chunk_host_payload_pairs_roundtrip --report-time

Resolves GOL-481

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