add links messages

Introduce two new wire messages, LINKS and LINKS_REPLY (swarm::links).
A member answers with its links: for each peer, the transport, whether
it’s relayed, the RTT, and whether it’s dormant.  It answers members
only, at most every 5 s.  This bumps wire::VERSION to 7.  Every build
answers, with or without the feature, so every node needs this patch
before the map shows anything beyond its own node.

1 files changed, 2 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index f1e7539..8bdb5af 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,6 +7,8 @@ edition = "2024"
 # least one (`--features mycelium`, `--features libp2p,tor`, ...).
 [features]
 tokio-console = ["dep:console-subscriber"]
+# A dashboard of the node and a map of the swarm in the HTTP API (`/admin/dashboard`).
+dashboard = []
 # The Mycelium transport (`--transports mycelium`, the default where built): through a
 # Mycelium daemon's API, one it supervises or one running elsewhere.
 mycelium = ["dep:reqwest", "dep:rustls", "dep:libc"]