fix: presence, profile edits, outfit menu and RecNetResult writes for the 2023 client

Every change below was checked against the 2023-03-21 client disassembly;
file:line evidence is in the code comments and in
docs/recroom-2023-client-api-complete.md.

Presence
- matchmake/none means "online, in no room" (its only caller is
  TryGoToOfflineRoom, which ignores the reply). The server used to keep the
  old room or invent a dorm, so the next heartbeat looked out of sync and
  the client cancelled its load to chase that room.
- The join watchdog no longer clears presence 30 s into a long room load;
  it is a 3 minute backstop that drops the room only.
- One fan-out (PresenceBroadcastService) for every transition: deferred
  joins, matchmake/none, logout, failed joins, visibility changes, SignalR
  connect/disconnect. isOnline is sent on its own; pushes never go to the
  subject, because a self push moves the player.
- Online-status visibility (Public / Friends / Favorites / Appear offline)
  is stored and honoured by GET /player and by the live pushes.

Profile
- PUT account/me/{emoji,personalpronouns,identityflags,bannerimage} were
  404; added with the client's real form keys and persisted (new Players
  columns plus migration). Every account read now returns them, and edits
  push AccountUpdate to everyone.

Outfit menu
- Saved outfits kept OutfitSelectionsV2 and CustomAvatarItems, so loading a
  slot restores what was saved instead of a stale outfit.
- isCreationAllowedForAccount answers the {Success, Error} envelope the
  client parses; minPriceForPublicItem is a bare int; gifts/generate accepts
  form bodies; lockeditems returns the full owned-item shape; colourways no
  longer share their base item's AvatarItemId.

RecNetResult writes
- About 40 writes look status-only but parse the body as {Success, Error}.
  An empty 200 showed "Failed to ..." after the server applied the change,
  and a body without Success threw "Error message cannot be null". Clubs,
  announcements, keepsakes, comments/read, subscriptions, purchase offers
  and privacy settings now answer RecNetResult.
- Login token and device-code grants are real; remoteauth approves the
  device code; createlogintoken returns a bare string.
- New: incentivizedreferrals/referrals, account/bulk/{email,phone},
  GET strings, account/me/confirmphone, PlayMenuCarouselOrdering_1.
  Route inventory and coverage test extended to match.

README now describes the 2023 branch.

DorkNet.Server/Data/Entities/PlayerEntity.cs

@@ -116,6 +116,29 @@ public class PlayerEntity
     [MaxLength(32)]
     public string? Phone { get; set; }
 
+    // ── 2023 profile fields ──────────────────────────────────────────────
+    // Written by PUT account/me/{emoji,bannerimage,personalpronouns,
+    // identityflags} and read back on every account DTO (account/me,
+    // account/{id}, account/bulk, search, AccountUpdate push) under the
+    // keys displayEmoji / bannerImage / personalPronouns / identityFlags.
+
+    /// <summary>Emoji shown beside the display name ("" = none).</summary>
+    [MaxLength(32)]
+    public string DisplayEmoji { get; set; } = string.Empty;
+
+    /// <summary>Profile banner image name (a storage image the player
+    /// already uploaded, e.g. one of their photos). Null = no banner.</summary>
+    [MaxLength(256)]
+    public string? BannerImageName { get; set; }
+
+    /// <summary>Pronoun bitmask (client flags enum: SheHer=1, HeHim=2,
+    /// TheyThem=4, ZeHir=8, ZeZir=16, XeXem=32).</summary>
+    public int PersonalPronouns { get; set; } = 0;
+
+    /// <summary>Identity-flag bitmask (client flags enum: LGBTQIA=1,
+    /// Transgender=2, Bisexual=4, …).</summary>
+    public int IdentityFlags { get; set; } = 0;
+
     // Navigation
     public AvatarEntity? Avatar { get; set; }
     public List<PlayerSettingEntity> Settings { get; set; } = [];