Merge remote-tracking branch 'origin/main' into 0.74.7-branch-sync

# Conflicts:
#	client/internal/peer/conn.go
#	client/internal/peer/conn_test.go
#	client/internal/peer/wg_watcher.go
#	client/internal/peer/wg_watcher_test.go
#	go.mod
#	go.sum

client/ssh/server/test.go

@@ -1,3 +1,11 @@
+// This file is intentionally named test.go (not test_test.go) so the exported
+// StartTestServer helper is visible to the ssh/proxy and ssh/client external
+// test packages, not just this package's own tests. The //go:build !js tag
+// keeps its "testing" import — and the whole testing/flag/regexp transitive
+// chain it drags in — out of the wasm client, which links ssh/server through
+// the engine but never runs Go tests under GOOS=js.
+//go:build !js
+
 package server
 
 import (