feat(net,runtime): Campaign CC CC2 — CharacterCreate wire, 0xF643 correlation, creation status events

Wire (Core.Net):
- CharacterCreate.cs: outbound 0xF656 builder, byte-exact port of
  Proto_UI::SendCharGenResult@0x00546a70 -> ACCharGenResult::Pack@0x005c7570
  -> CG_Pack@0x005c7200. Account String16L first (packed outside CG_Pack),
  then the constant-1 u32, heritage/gender, 14 appearance strip/style/color
  u32s, 6 f64 shades (skin/hair/headgear/shirt/trousers/footwear, retail
  order), template, 6 attributes, slot, classId, numSkills + exactly 55
  u32 skill-advancement classes (ReadOnlySpan validated ==55, throws
  ArgumentException otherwise — ACE terminates the session on any other
  count via PlayerFactory.CreateResult.ClientServerSkillsMismatch), name
  String16L, startArea, isAdmin, isEnvoy, and a trailing checksum whose
  exact 19-term accumulation set (heritage+gender+3 strips+hairColor+
  eyeColor+hairStyle+headgearStyle+shirtStyle+trousersStyle+footwearStyle+
  template+6 attributes) is read byte-for-byte off CG_Pack's decompiled
  accumulator (0x005c7213-0x005c74c3) — headgearColor/shirtColor/
  trousersColor/footwearColor/shades/slot/classId are deliberately absent
  from the sum despite sitting adjacent on the wire. Cross-checked against
  ACE's CharacterCreateInfo.Unpack/Appearance.Unpack and holtburger's
  CharacterCreateRequestData (types.rs:236-369), which agree on every
  field and order. Retail routes via SendToLogon — the same queue
  CharacterDelete already uses.
- CharGenVerificationResponse.cs (new): promotes the shared 0xF643 parse
  out of CharacterRestore — full Code enum (Undef..AdminPrivilegeDenied=7,
  ACE's CharacterGenerationVerificationResponse) plus the conditional
  Ok-only identity payload (guid/String16L name/u32 secondsGreyedOut).
  CharacterRestore.Parse now delegates to it; CharacterRestore's public
  Parsed shape, Parse signature, and every existing test expectation are
  UNCHANGED.
- PacketWriter.WriteDouble: f64 little-endian helper for the shade fields.

WorldSession dispatch (Core.Net):
- Added an awaiting-request latch (None/Restore/Create), armed by
  SendRestoreCharacter/the new SendCharacterCreation immediately before
  each send (SendCharacterCreation builds the body first so a skill-count
  throw never arms the latch for a request that was never sent), cleared
  the instant a matching 0xF643 is dispatched (success OR parse failure —
  a malformed reply must never wedge the latch open) and on Dispose.
  0xF643 now routes to CharacterRestoreReceived or the new
  CharacterCreateResponseReceived (Action<CharGenVerificationResponse.Parsed>)
  by that latch; an unexpected 0xF643 with nothing outstanding logs once
  and is dropped, never misattributed. Fixed
  WorldSessionCharacterSelectionTests' restore-dispatch test, which
  previously fed a bare CharacterRestore response with no preceding
  SendRestoreCharacter — that shape is now the "no outstanding request"
  drop path by design.

Status events (Runtime + Launcher.Core, contract first):
- Amended docs/plans/2026-08-14-launcher-campaign.md §LA1's pinned status
  vocabulary to add characterCreated{guid,name} (Ok reply identity, named
  to mirror CharGenVerificationResponse's own fields and to read distinct
  from enteredWorld — retail logs a freshly created character straight in
  without a fresh characterList) and creationFailed{code,name} (raw Code
  value + its enum member name).
- SessionStatusWriter.CharacterCreated/CreationFailed implement that
  contract.
- Launcher.Core: CharacterCreatedStatusEvent/CreationFailedStatusEvent +
  StatusEventParser cases, in lockstep.

Tests: CharacterCreateTests (byte-exact layout incl. checksum term-set,
55-slot fixture, wrong-count throws), CharGenVerificationResponseTests
(every Code value), WorldSessionCharacterCreationTests (create-then-
response routes correctly, restore unaffected, no-outstanding drop,
second-response-after-consumed drop, Dispose clears the latch, a builder
throw never arms it), SessionStatusWriterTests + Launcher.Core
StatusEventParserTests/StatusFileTailerTests (pinned shape + tailer
round-trip) for the two new events.

Verified: dotnet build AcDream.slnx -c Release — 0 errors. Full solution
test run green (Core.Net.Tests 993/993, Runtime.Tests 1667/1667,
Launcher.Core.Tests 323/323, plus every other project in the solution).
WSL Ubuntu: Core.Net.Tests 993/993, Runtime.Tests 1667/1667.

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

src/AcDream.Launcher.Core/Status/StatusEvent.cs

@@ -44,6 +44,36 @@ public sealed record EnteredWorldStatusEvent : StatusEvent
     public required string CharacterName { get; init; }
 }
 
+/// <summary>
+/// Campaign CC CC2: the Ok reply to an outbound CharacterCreate (opcode
+/// <c>0xF656</c>). <see cref="Guid"/>/<see cref="Name"/> mirror the shared
+/// <c>0xF643</c> <c>CharGenVerificationResponse</c> Ok identity payload's own
+/// field names — deliberately distinct from <see cref="EnteredWorldStatusEvent"/>'s
+/// <c>characterId</c>/<c>characterName</c>, since retail logs a freshly
+/// created character straight in without a fresh <c>characterList</c>, so
+/// this event can precede an <see cref="EnteredWorldStatusEvent"/> for the
+/// same character rather than replace it.
+/// </summary>
+public sealed record CharacterCreatedStatusEvent : StatusEvent
+{
+    public required uint Guid { get; init; }
+
+    public required string Name { get; init; }
+}
+
+/// <summary>
+/// Campaign CC CC2: a non-Ok reply to an outbound CharacterCreate.
+/// <see cref="Code"/> is the raw wire
+/// <c>CharGenVerificationResponse.Code</c> value; <see cref="Name"/> is that
+/// code's enum member name (e.g. <c>"NameInUse"</c>).
+/// </summary>
+public sealed record CreationFailedStatusEvent : StatusEvent
+{
+    public required uint Code { get; init; }
+
+    public required string Name { get; init; }
+}
+
 public sealed record PluginLoadedStatusEvent : StatusEvent
 {
     public required string Plugin { get; init; }

src/AcDream.Launcher.Core/Status/StatusEventParser.cs

@@ -103,6 +103,10 @@ public static class StatusEventParser
                         ParsePluginFailed(root, v, e, t, sessionId),
                     "loginCommandFailed" =>
                         ParseLoginCommandFailed(root, v, e, t, sessionId),
+                    "characterCreated" =>
+                        ParseCharacterCreated(root, v, e, t, sessionId),
+                    "creationFailed" =>
+                        ParseCreationFailed(root, v, e, t, sessionId),
                     "disconnected" =>
                         ParseDisconnected(root, v, e, t, sessionId),
                     "exited" =>
@@ -131,6 +135,8 @@ public static class StatusEventParser
             "pluginLoaded" or
             "pluginFailed" or
             "loginCommandFailed" or
+            "characterCreated" or
+            "creationFailed" or
             "disconnected" or
             "exited";
 
@@ -237,6 +243,38 @@ public static class StatusEventParser
             CharacterName = RequireString(root, "characterName"),
         };
 
+    private static StatusEvent ParseCharacterCreated(
+        JsonElement root,
+        int v,
+        string e,
+        DateTimeOffset t,
+        string sessionId) =>
+        new CharacterCreatedStatusEvent
+        {
+            V = v,
+            E = e,
+            T = t,
+            SessionId = sessionId,
+            Guid = RequireUInt32(root, "guid"),
+            Name = RequireString(root, "name"),
+        };
+
+    private static StatusEvent ParseCreationFailed(
+        JsonElement root,
+        int v,
+        string e,
+        DateTimeOffset t,
+        string sessionId) =>
+        new CreationFailedStatusEvent
+        {
+            V = v,
+            E = e,
+            T = t,
+            SessionId = sessionId,
+            Code = RequireUInt32(root, "code"),
+            Name = RequireString(root, "name"),
+        };
+
     private static StatusEvent ParsePluginLoaded(
         JsonElement root,
         int v,