fix(rendering): bound portal resource lifetime

Separate logical ownership, render publication, and GPU retirement across live entities, landblocks, particles, textures, mesh arenas, portal/UI teardown, and per-frame scratch storage. Add bounded DAT/texture caches, upload budgets, three-frame fence retirement, exact-incarnation appearance reconciliation, frame pacing, and extensive lifetime conformance coverage.\n\nThe seven-destination connected route now cuts peak working/private memory roughly in half, returns Caul to 125-153 FPS locally, and produces no WER or AMD reset.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>

src/AcDream.App/UI/Layout/ChatWindowController.cs

@@ -75,6 +75,17 @@ public sealed class ChatWindowController : IRetainedWindowStateController, IReta
 
     private ChatChannelKind _activeChannel = ChatChannelKind.Say;
 
+    // UiText polls LinesProvider while drawing and hit-testing. Keep the fully
+    // formatted + wrapped transcript until either its source revision or the
+    // metrics that determine wrapping change. This makes an idle chat window
+    // allocation-free instead of snapshotting/formatting/wrapping every frame.
+    private IReadOnlyList<UiText.Line> _cachedTranscriptLines = Array.Empty<UiText.Line>();
+    private long _cachedTranscriptRevision = -1;
+    private float _cachedTranscriptWrapWidth = float.NaN;
+    private UiDatFont? _cachedTranscriptDatFont;
+    private BitmapFont? _cachedTranscriptDebugFont;
+    internal int TranscriptLayoutBuildCount { get; private set; }
+
     // ── Channel knowledge (ported from old UiChannelMenu — gmMainChatUI::InitTalkFocusMenu @0x4cdc50) ──
 
     private static readonly (string Label, ChatChannelKind? Channel)[] ChannelItems =
@@ -215,7 +226,7 @@ public sealed class ChatWindowController : IRetainedWindowStateController, IReta
         c.Transcript.OneLine = false;
         c.Transcript.Selectable = true;
         c.Transcript.BackgroundColor = new Vector4(0f, 0f, 0f, 0.35f);   // retail translucent transcript
-        c.Transcript.LinesProvider   = () => BuildLines(vm, c.Transcript, datFont, debugFont);
+        c.Transcript.LinesProvider   = () => c.GetTranscriptLines(vm);
 
         // ── Input ────────────────────────────────────────────────────────
         // Editable/selectable/one-line semantics and state sprites came from the
@@ -415,20 +426,35 @@ public sealed class ChatWindowController : IRetainedWindowStateController, IReta
     /// <see cref="UiText.Line"/> record format, applying retail-faithful
     /// per-<see cref="ChatKind"/> colors.
     /// </summary>
-    private static IReadOnlyList<UiText.Line> BuildLines(
-        ChatVM vm, UiText view, UiDatFont? datFont, BitmapFont? debugFont)
+    private IReadOnlyList<UiText.Line> GetTranscriptLines(ChatVM vm)
     {
+        float maxW = Transcript.Width - 2f * Transcript.Padding;
+        UiDatFont? datFont = Transcript.DatFont;
+        BitmapFont? debugFont = Transcript.Font;
+        long revision = vm.Revision;
+
+        if (_cachedTranscriptRevision == revision
+            && _cachedTranscriptWrapWidth.Equals(maxW)
+            && ReferenceEquals(_cachedTranscriptDatFont, datFont)
+            && ReferenceEquals(_cachedTranscriptDebugFont, debugFont))
+        {
+            return _cachedTranscriptLines;
+        }
+
         var detailed = vm.RecentLinesDetailed();
-        if (detailed.Count == 0) return Array.Empty<UiText.Line>();
+        if (detailed.Count == 0)
+        {
+            return StoreTranscriptLayout(
+                Array.Empty<UiText.Line>(), revision, maxW, datFont, debugFont);
+        }
 
         // Word-wrap each message to the transcript's current pixel width (ports retail
         // GlyphList::Recalculate @0x473800 — break at word boundaries when the line would
-        // exceed wrapWidth). Re-evaluated each frame so wrapping follows window resize.
-        float maxW = view.Width - 2f * view.Padding;
+        // exceed wrapWidth). The cache key re-evaluates it after window resize.
         Func<string, float> measure =
               datFont   is { } df ? s => df.MeasureWidth(s)
             : debugFont is { } bf ? s => bf.MeasureWidth(s)
-            : s => s.Length * 7f;
+            : static s => s.Length * 7f;
 
         var result = new List<UiText.Line>(detailed.Count);
         foreach (var d in detailed)
@@ -437,7 +463,23 @@ public sealed class ChatWindowController : IRetainedWindowStateController, IReta
             foreach (var frag in WrapText(d.Text, maxW, measure))
                 result.Add(new UiText.Line(frag, color));
         }
-        return result;
+        return StoreTranscriptLayout(result, revision, maxW, datFont, debugFont);
+    }
+
+    private IReadOnlyList<UiText.Line> StoreTranscriptLayout(
+        IReadOnlyList<UiText.Line> lines,
+        long revision,
+        float wrapWidth,
+        UiDatFont? datFont,
+        BitmapFont? debugFont)
+    {
+        _cachedTranscriptRevision = revision;
+        _cachedTranscriptWrapWidth = wrapWidth;
+        _cachedTranscriptDatFont = datFont;
+        _cachedTranscriptDebugFont = debugFont;
+        _cachedTranscriptLines = lines;
+        TranscriptLayoutBuildCount++;
+        return lines;
     }
 
     /// <summary>