BadgeCountTests follows the deposit path wave 2 left behind

`Routes.placeDeposits` is gone: wave 2 split it into `resolveDeposits`, which
turns a peer's envelopes into `Delivery.Item`s, and `Delivery.write`, which
inserts them and then wakes and pushes. The test still called the old one and
the Linux test build stopped on "type 'Routes' has no member 'placeDeposits'".

It now does what the route does, in the same two steps, and still asserts the
same thing: a deposit is written with `announced` false, so the badge does not
count it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Tests/FlamenetRelayTests/BadgeCountTests.swift

@@ -127,13 +127,24 @@ struct BadgeCountTests {
             user.fnid = "fnid:bob"
             try await user.create(on: h.db)
 
-            let placed = try await Routes.placeDeposits(
-                [
-                    FederationDepositRequest.Item(
-                        to_fnid: "fnid:bob", to_device: r.deviceID, payload: "afar",
-                        envelope_id: nil)
-                ], on: h.db)
-            #expect(placed.accepted == 1)
+            // The route's own two steps since wave 2: `resolveDeposits` turns
+            // a peer's envelopes into `Delivery.Item`s, and `Delivery.write`
+            // inserts them. It used to be one `placeDeposits` call that did
+            // both. The point of the test is unchanged: a deposit is written
+            // with `announced` false, so the badge does not count it.
+            let (ids, unknown) = try await Delivery.write(
+                db: h.db, app: h.app
+            ) { db in
+                let resolved = try await Routes.resolveDeposits(
+                    [
+                        FederationDepositRequest.Item(
+                            to_fnid: "fnid:bob", to_device: r.deviceID, payload: "afar",
+                            envelope_id: nil)
+                    ], on: db)
+                return (resolved.items, resolved.unknown)
+            }
+            #expect(ids.count == 1)
+            #expect(unknown.isEmpty)
             #expect(try await badge(h, r) == 0)
         }
     }