milestone 13 discrepancies: redact credentials from urls in logs, metrics and cli output

src/server/udp_server.zig

@@ -77,7 +77,7 @@ pub const UdpServer = struct {
         /// handler, so nothing larger than 4096 bytes leaves this socket.
         ///
         /// Cost: 4096 + 65535 + the scratch below ≈ 74 KiB per slot, so the
-        /// default 64 slots hold ≈ 4.6 MiB. The PLAN §18 budget is 100 MB with
+        /// default 64 slots hold ≈ 4.6 MiB. The PLAN §18 budget is 100 MiB with
         /// ~1M blocked domains, so this pool takes about 5% of it.
         reply: [transport.max_message_len]u8,
         /// The handler's per-query working memory. It belongs to the slot so
@@ -297,7 +297,7 @@ test "a slot's reply buffer holds a whole DNS message" {
 
 test "the default slot pool stays inside the memory budget" {
     // 4096 + 65535 + scratch ≈ 74 KiB per slot; 64 slots ≈ 4.6 MiB, against the
-    // 100 MB of PLAN §18.
+    // 100 MiB of PLAN §18.
     const options: Options = .{};
     const pool_bytes = @sizeOf(UdpServer.Slot) * @as(usize, options.max_in_flight);
     try testing.expect(pool_bytes < 8 * 1024 * 1024);