Adapt custom overlay to QUIC transport

[bvscd]

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[Copilot]

Pull request overview

Adds opt-in QUIC two-step broadcast support for custom overlays via a new use_quic field in the TL/JSON config, refactors CustomOverlayClient to share the full NetworkStack and route sends through broadcast_twostep, and extends custom overlays to handle V2 block/candidate compressed broadcasts. The PR also bundles several unrelated changes (RLDP diagnostics, simplex finalized-callback dedup idempotency fix, SUPPORTED_VERSION bump to 14, ADNL addr_list.reinit_date sync, test harness cleanups).

Changes:

• Custom overlay config gains use_quic:Bool (TL + JSON parse/save) and CustomOverlayClient passes it into OverlayNode::add_private_overlay and broadcast_twostep.
• NodeNetwork registers the default overlay ADNL key with QUIC at startup and extracts shared compute_quic_bind_addr / bind_quic_key helpers; BroadcastSendMethod::QuicOrRldp now actually falls back to RLDP instead of silently no-op'ing.
• Independent fixes: V2 candidate/block broadcast processing in custom overlays, simplex finalized-callback dedup is now idempotent for the same block_id across slot-keyed cleanup, RLDP receive diagnostics, SUPPORTED_VERSION = 14.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/tl/ton_api/tl/ton_api.tl	Adds use_quic:Bool to engine.validator.customOverlay.
src/node/src/config.rs	Parses optional use_quic (default false) and persists it for every overlay.
src/node/src/tests/test_config.rs	Serde round-trip test seeds random use_quic.
src/node/src/network/custom_overlay_client.rs	Holds NetworkStack, plumbs use_quic, switches send path to broadcast_twostep, adds V2 block/candidate handling.
src/node/src/network/full_node_overlays.rs	Updates call sites to the new send_broadcast(data, flags) signature and passes shared stack.
src/node/src/network/node_network.rs	Adds startup QUIC binding for default overlay key and extracts compute_quic_bind_addr / bind_quic_key.
src/node/src/network/mod.rs	Adds decompress_and_check_candidate_data_v2 and exports new V2 broadcast type.
src/adnl/src/overlay/mod.rs	QuicOrRldp now properly falls back to RLDP rather than returning no-op None.
src/adnl/src/adnl/node.rs	Syncs outgoing addr_list.reinit_date to packet reinit_date.
src/adnl/src/rldp/mod.rs	Adds per-transfer packet/confirmation counters and per-chunk debug logging; error log includes source peer.
src/adnl/src/rldp/recv.rs	send_confirmations returns the number of confirmation packets sent.
src/node/simplex/src/session_processor.rs	finalized_delivery_sent_seqno now stores FinalizedSeqnoRecord; same-block re-entry is idempotent.
src/node/simplex/src/tests/test_session_processor.rs	Adds regression tests for seqno dedup retention and idempotent re-entry.
src/block/src/config_params.rs	Bumps SUPPORTED_VERSION from 13 → 14.
src/node/tests/test_run_net_py/run_singlehost_nodectl.py	Removes elections.cache_refresh_secs patch and per-node ton-http-api failover endpoints; drops sleep after tick_interval patch.

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