feat(ui): port retail appraisal panel

Preserve retail's one-pending-appraisal busy lifetime, parse the complete gated response, and mount the authored examination layout in the shared main-panel host. Keep known 3D preview and inscription-write gaps explicit in AP-110.

docs/plans/2026-07-23-world-interaction-completion.md

@@ -1,9 +1,10 @@
 # World interaction completion — pre-M4 program
 
 **Status:** Slice 1 user-accepted 2026-07-23. Slice 2 Use-hand selection,
-zero-useability, carried direct-use, and AutoWear correction passed their
-connected gates. The requested shared item-cooldown follow-up is code-complete
-and awaits its visual gate before Assess continues.
+zero-useability, carried direct-use, AutoWear correction, and the requested
+shared item-cooldown follow-up passed their connected gates. The existing
+retail Assess command has been reconciled and Slice 3's examination panel is
+code-complete; its connected visual gate is next.
 **Milestone:** M4 prerequisite/preamble.
 **Architecture:** retained gameplay UI over shared selection, object, and
 interaction state. `GameWindow` remains a composition/callback shell.
@@ -106,6 +107,26 @@ The focused parser/Core/UI/production-DAT tests, warning-free Release solution
 build, 3,482 App tests / 3 skips, and 7,875 complete-solution tests / 5 skips
 pass. AP-123 records only the retained toolkit's procedural-child adaptation;
 the visible assets, ordering, timing, and shared-group behavior are exact.
+The user accepted the live cooldown presentation 2026-07-23.
+
+Slice 3 preserves the existing toolbar/keyboard Assess command and ports the
+retail response owner around it. One shared UI-busy reference covers the
+latest pending GUID, stale replies are rejected, the accepted reply becomes
+the current appraisal, and combat-time creature/player refreshes occur every
+0.75 seconds only while the examination window is visible. Complete
+`IdentifyObjectResponse` parsing now includes the three-word HookProfile and
+rejects truncated gated payloads rather than continuing from a corrupt cursor.
+LayoutDesc `0x2100006B`, root `0x100005F2`, supplies the complete 310 x 400
+floaty chrome, title, item/creature/character subviews, close control, and
+authored scrollbars. The panel participates in the canonical one-active
+main-panel geometry/lifecycle rather than owning a parallel location. Basic
+item, creature, and player reports are live; exact 3D preview/specialized
+detail regions, conditional inscription editing, and selection-follow remain
+the narrowed AP-110 residual. Research:
+[`../research/2026-07-23-retail-appraisal-ui-pseudocode.md`](../research/2026-07-23-retail-appraisal-ui-pseudocode.md).
+The focused parser/router/request/controller/fixture tests pass, as do the
+Release solution build with 17 pre-existing tracked test warnings, 3,488 App
+tests / 3 skips, and 7,885 complete-solution tests / 5 skips.
 
 ## Slice 1 — spell-bar overflow arrows
 
@@ -183,11 +204,40 @@ Named retail references and executable pseudocode are recorded in
    request owner, and targeted items enter `UseItemOnTarget`, which already
    owns the retail target cursor.
 
-### Remaining Slice 2 work
+### Slice 2 closeout
 
-- Run the connected visual gate for the shared item cooldown: use Blackmoor's
-  Favor or a summon/stone and verify its inventory and shortcut aliases count
-  down together, then clear.
-- Port the magnifying-glass Assess command state and activation.
-- Continue directly into the Assess information slice after the combined
-  status-control gate.
+- The shared item-cooldown visual gate passed.
+- `gmToolbarUI::ListenToElementMessage @ 0x004BEE90` confirms the existing
+  magnifying-glass path was already correct: assess the selected GUID
+  immediately, otherwise enter one-shot Examine target mode.
+- Slice 3 owns the response lifetime and retained examination presentation;
+  Slice 2 adds no duplicate command path.
+
+## Slice 3 — assessment information panel
+
+### Implemented ownership
+
+1. `AppraiseInfoParser` owns the complete positional response payload,
+   including HookProfile and strict truncation failure.
+2. `ItemInteractionController` owns the pending/current GUID pair and the
+   balanced shared busy reference.
+3. `AppraisalUiController` owns response acceptance, item/creature/character
+   subview selection, report projection, scroll preservation, first-response
+   visibility, and visible-combat refresh.
+4. `RetailUiRuntime` imports the retail layout and registers it with
+   `RetailPanelUiController`, so Inventory, Skills, Spellbook, effects, and
+   Examination remain views of the same movable/resizable main panel.
+5. Network workers deliver immutable parsed data through the existing
+   session router; retained state changes remain on the update thread.
+
+### Connected gate
+
+- Select an item and click the magnifying glass (or press Assess): the shared
+  panel should show its name, available properties, descriptions,
+  inscription/signature, retail chrome, and working scrollbar.
+- Assess a monster, NPC, and player: the correct creature/character page
+  should appear and the busy cursor should clear.
+- In combat, leave a creature assessment open long enough to observe a health
+  refresh; closing it or opening another shared panel must stop refreshes.
+- Move/resize Examination, switch to Inventory or Skills, and confirm the
+  shared rectangle is retained.