v0.12.0 migrate sqlite3 to psql18, updated auth, deploy docs, account and replay updates

cmd/chess-server/proxy_test.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"slices"
+	"testing"
+)
+
+func TestParseTrustedProxies(t *testing.T) {
+	got, err := parseTrustedProxies(" 10.0.0.1, 10.1.0.0/16,,::1 ")
+	if err != nil || !slices.Equal(got, []string{"10.0.0.1", "10.1.0.0/16", "::1"}) {
+		t.Fatalf("parse = %v, %v", got, err)
+	}
+	if got, err := parseTrustedProxies(""); err != nil || len(got) != 0 {
+		t.Fatalf("empty = %v, %v", got, err)
+	}
+	for _, invalid := range []string{"10.0.0", "10.0.0.0/33", "proxy.local"} {
+		if _, err := parseTrustedProxies(invalid); err == nil {
+			t.Errorf("%q accepted", invalid)
+		}
+	}
+}