fix(client): default item unitDrawable.frame to 0 across ticks and commit baked ui manifest/atlas (#540)

src/client/view/unit-drawables.ts

@@ -421,7 +421,7 @@ export function buildSceneDrawables(
       goldAmount: unit.goldAmount,
       mode: unit.mode ?? 0,
       direction: dir,
-      frame: unit.frame ?? (tick % 8),
+      frame: unit.frame ?? (unit.kind === 'item' ? 0 : (tick % 8)),
       subX: unit.x,
       subY: unit.y,
       worldX,

tests/ground-items-flippy-parity.test.ts

@@ -176,6 +176,28 @@ describe('Authentic Diablo II v1.13c Ground Items Flippy Parity', () => {
         }
       }
     })
+
+    it('defaults item unitDrawable.frame to 0 when unit.frame is undefined even on non-zero ticks', async () => {
+      const { buildSceneDrawables } = await import('../src/client/view/unit-drawables.ts')
+      const out = buildSceneDrawables(
+        [
+          {
+            id: 777,
+            kind: 'item',
+            classId: 0,
+            code: 'cap',
+            name: 'cap',
+            x: 100,
+            y: 100,
+            mode: 5,
+          },
+        ],
+        { tick: 5 },
+      )
+      expect(out.unitDrawables).toHaveLength(1)
+      expect(out.unitDrawables[0]!.frame).toBe(0)
+      expect(out.unitDrawables[0]!.token).toBe('cap')
+    })
   })
 })