[matrixarkai]

Summary

• reuse one route-matched verified data-group connection across complete object reads
• keep uncached groups connecting and reading concurrently
• retire failed, changed, or incompatible connections without replay
• preserve manifest sequence, length, and checksum validation

Tests

• cargo check --all-features --lib
• cargo test --all-features --test object_writer_connections (19 passed)
• cargo test --all-features --lib cluster::meta_client::operation_deadline_tests (14 passed)
• cargo test --all-features --test bounded_server_replies (9 passed)
• cargo test --release --all-features --test object_writer_connections (19 passed)
• git diff --check