feat: 20.5 grpc removal — binary protocol is sole transport#162

Merged

vieiralucas merged 15 commits intomainfrom

feat/20.5-grpc-removal

Apr 3, 2026

Commits on Apr 3, 2026

ci: re-trigger after runner timeout
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chore: mark story 20.5 in-progress
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feat: remove grpc server, admin/auth services, service.proto, admin.proto — binary protocol is sole transport
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fix: sdk consume no longer blocks waiting for initial response, remove dead code
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chore: mark story 20.5 done, epic 20 complete
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fix: cli mtls reuses root store instead of re-reading ca file with unwrap
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fix: validate acl permission kinds in binary protocol handler
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fix: cluster consume routing, dlq test uses separate connections per consume
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fix: cancelconsume on stream drop, document cluster opcodes, remove consume blocking wait
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feat: application-level backpressure — reader pauses tcp when internal channel hits high-water mark (256), with test proving bounded growth
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fix: gate backpressure test behind test-internals feature so ci compiles
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fix: high-water mark derived from delivery_buffer_size * 2, backpressure test runs in ci
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fix: post-rebase corrections for grpc removal
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fix: implement delivery_buffer_size and overflow counter for backpressure test
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fix: use consumer connection for backpressure assertion, count error overflow
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