release/node/v0.5.2

[bvscd]

Changed

Optimized fast-sync overlay operation over QUIC

Fixed

TVM stack slice TL-serialization fix for LiteServer

[Copilot]

Pull request overview

This PR targets two areas: (1) correctness of TVM stack TL-serialization for Slice values (notably preserving bit-length/window), and (2) optimizing fast-sync overlay behavior when QUIC/two-step broadcast is enabled.

Changes:

• Serialize TVM stack Slice items as a BOC-encoded cell (and decode accordingly) to preserve exact slice bit semantics.
• Extend semiprivate overlay membership inputs to include both validator ADNL IDs and validator signing public-key IDs, with an optional QUIC mode and two-step broadcast support for fast-sync.
• Add regression tests for slice roundtrips and update overlay tests/call sites for the new semiprivate overlay API.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/vm/src/smart_contract_info.rs	Switch slice stack encoding/decoding to BOC cell roundtrip to preserve slice semantics.
src/vm/src/tests/test_smart_contract_info.rs	Add regression tests validating slice roundtrip preserves bit-length and slice window.
src/node/src/rpc_server/token.rs	Accept BOC-encoded slice stack entries when parsing MsgAddress from stack.
src/node/src/network/overlay_client.rs	Update semiprivate overlay creation signature and add a two-step broadcast wrapper.
src/node/src/network/full_node_overlays.rs	Use prev/this/next validator sets for fast-sync roots and wire use_quic flags into overlay creation/sending.
src/node/src/network/fast_sync_overlay_client.rs	Pass ADNL IDs + signing public keys to semiprivate overlays; add two-step broadcast path gated by QUIC availability.
src/adnl/tests/test_overlay.rs	Update semiprivate overlay tests to pass both root ADNL IDs and root public keys, plus use_quic.
src/adnl/src/overlay/mod.rs	Expand CertifiedMembers overlay structure, QUIC gating, and twostep neighbour selection/counting logic.

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