Teams-style chat list, contact name resolution, and fixes

UI:
- Rework the conversation list to a Teams/Outlook-style row: single-line
  preview, right-aligned timestamp, unread dot, and a neutral elevated
  rounded fill (drawn by a Border that wraps the whole row) for hover/select.
- Smooth the Chats/Calls/Stories rail indicator by suppressing the content
  frame's transition, which competed with the indicator animation.

Contact names:
- Fetch + decrypt Signal profile names (ProfileCipher, ProfileService,
  ProfileNameStore, GET /v1/profile) when a peer has no synced name.
- Capture each contact's profileKey from the link'n'sync backup and the
  contacts sync (un-reserve ContactDetails.profileKey) so names can be
  resolved; fall back to the phone number before a raw ACI.

Other:
- Report the device to Signal as "Wingnal: {machine name}".
- Resolve build warnings: target Wingnal.Service at net8.0-windows (CA1416),
  initialize zkgroup credential fields (CS8618), hoist a stackalloc (CA2014).
- Skip the live chat-connect diagnostic test by default (it logged in as the
  real account and disconnected the app).
- Bump app version 1.0.1.0 -> 1.0.2.0.

Wingnal.Protocol/ZkGroup/Poksho/ShoSha256.cs

@@ -46,13 +46,13 @@ public sealed class ShoSha256
     {
         if (_absorbing) throw new InvalidOperationException("ShoSha256: must ratchet before squeezing");
         var output = new byte[outlen];
+        Span<byte> ctr = stackalloc byte[8];   // hoisted out of the loop; fully rewritten each iteration
         for (int i = 0; i * HashLen < outlen; i++)
         {
             using var h = IncrementalHash.CreateHash(HashAlgorithmName.SHA256);
             h.AppendData(new byte[BlockLen - 1]);      // 63 zero bytes
             h.AppendData(new byte[] { 0x01 });
             h.AppendData(_cv);
-            Span<byte> ctr = stackalloc byte[8];
             BinaryPrimitives.WriteUInt64BigEndian(ctr, (ulong)i);
             h.AppendData(ctr);
             byte[] digest = h.GetHashAndReset();