fix(chat): Campaign CH user-gate round 1 — jump-in-air edge, portal cue cadence, wrap/prefix/color fixes

The user tested Campaign CH's CODE-COMPLETE build live and reported ten
defects (docs/plans/2026-08-09-chat-parity-campaign.md, "User gate —
round 1"). Items A-G are fixed here; the remaining three (extra chat
windows on 1/2/3/4, resize working in only one corner, transparency/
artifacts) are out of scope for a fix and filed as slice CH6.

A. Jump-in-air refusal never fired live: the jump block only ever
   evaluated input.Jump inside the grounded-charge or already-charging
   branches. PlayerMovementController now detects the press RISING EDGE
   while airborne and reports WeenieError.NotGrounded once per press,
   leaving the grounded charge/fire path untouched.
B. ChatVM's invented "[System] " prefix is dropped — retail prints
   system text bare. [Popup] is unchanged (AP-175).
C. SpewBoxController's color is now the user-pinned exact value
   (1, 1, 0.247, 1), the same bright yellow as an incoming Tell.
   Register row AP-178 updated: color CLOSES, size/position/font stay
   open per the user's live report that they still differ.
D. Closes #329: PortalTunnelPresentation now emits the portal wait cue
   unconditionally on every rotation-segment boundary, matching
   gmSmartBoxUI::UseTime's decompiled else-arm exactly instead of gating
   on a 5-second hold local transits never reached. PortalWaitNotice
   Controller now renders it in the same pinned yellow as item C.
   Register row AP-150 retired.
E. Closes #362: new ClientCommandResponses.cs parses and renders the
   four previously-unhandled inbound GameEvents (ChannelIndex,
   ChannelList, AvailableHouses, AllegianceInfoResponse), each ported
   line-for-line from the named-retail decomp's inbound handlers.
   Register row TS-70 retired.
F. ChatWindowController.WrapText now splits on embedded '\n'/'\r\n'
   first, then word-wraps each segment independently — server text like
   /help's reply no longer collapses onto one line.
G. The chat input field's right edge no longer holds a fixed absolute
   pixel position across a window resize; Bind now upgrades it to
   retail edge-mode 1 (UiLayoutPolicy) or the AnchorEdges.Right stretch
   fallback so it tracks the window's client width instead of
   overflowing past a narrower resize.

Full Release suite: 12,247 passed / 4 skipped / 0 failed (baseline
12,221/4/0 + 26 new tests across items A, E, F, G).

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

tests/AcDream.Runtime.Tests/Gameplay/PlayerMovementControllerTests.cs

@@ -940,6 +940,51 @@ public class PlayerMovementControllerTests
         Assert.Null(exception);
     }
 
+    // ── Campaign CH user-gate round 1 (item A): airborne jump refusal ──────
+
+    [Fact]
+    public void JumpPress_RisingEdgeWhileAirborne_ReportsCantJumpInAir_HeldOnlyOnce_NoneAfterLanding()
+    {
+        var engine = MakeFlatEngine();
+        var controller = new PlayerMovementController(engine);
+        controller.SeedPlacementForTest(new Vector3(96f, 96f, 50f), 0x0001, new Vector3(96f, 96f, 50f));
+
+        // Launch into the air with an ordinary charged jump — the fix must
+        // not touch this grounded charge/fire path at all.
+        controller.Update(1.0f, new MovementInput(Jump: true));    // full charge
+        controller.Update(0.016f, new MovementInput(Jump: false)); // release -> jump fires
+        Assert.True(controller.IsAirborne);
+        controller.Update(0.05f, new MovementInput()); // clear the ground before pressing again
+
+        var reported = new List<string>();
+        controller.OnInterfaceText = (text, _) => reported.Add(text);
+
+        // Rising edge while airborne: exactly one "You can't jump while in
+        // the air" report.
+        controller.Update(0.016f, new MovementInput(Jump: true));
+        var report = Assert.Single(reported);
+        Assert.Equal(ClientTextRefusals.CantJumpInAir, report);
+
+        // Holding the key across multiple further updates raises no
+        // additional reports.
+        controller.Update(0.016f, new MovementInput(Jump: true));
+        controller.Update(0.016f, new MovementInput(Jump: true));
+        controller.Update(0.016f, new MovementInput(Jump: true));
+        Assert.Single(reported);
+
+        // Release, then land.
+        controller.Update(0.016f, new MovementInput(Jump: false));
+        for (int i = 0; i < 60 && controller.IsAirborne; i++)
+            controller.Update(0.05f, new MovementInput());
+        Assert.False(controller.IsAirborne, "should have landed");
+
+        // Landing then pressing again while grounded raises none (the
+        // grounded charge succeeds normally for an unburdened character).
+        reported.Clear();
+        controller.Update(0.016f, new MovementInput(Jump: true));
+        Assert.Empty(reported);
+    }
+
     // ── Campaign P Slice P5 (2026-07-30): ConstraintManager leash arming (#167) ──
     //
     // docs/research/2026-07-30-constraint-leash-constants.md. The player's