refactor(storybook): consolidate property panel comparison layout

Keep sw-header--property-panel-compare as the single property panel state
page: the four existing SWHeaderPropertyPanel states in 2 columns x 2 rows
at their original size, inside a scrolling Inner. Remove the duplicate
Property Panel Variants and the four single-state Stories (SW 24 -> 19).
Storybook-only change; SW runtime and public API untouched.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/sw/property-panel-comparison-qa/legacy-property-close/run-result.json

@@ -0,0 +1,81 @@
+{
+  "label": "run",
+  "checks": [
+    {
+      "name": "size 44 x 30, top-right of the panel",
+      "status": "PASS",
+      "data": {
+        "w": 44,
+        "h": 30,
+        "right": 1,
+        "top": 1,
+        "imgs": [
+          [
+            "hm-sw-property__close-default",
+            44,
+            30
+          ],
+          [
+            "hm-sw-property__close-hover",
+            44,
+            30
+          ]
+        ]
+      }
+    },
+    {
+      "name": "Default: no canvas-light pixels on the button edge / corner",
+      "status": "PASS",
+      "data": {
+        "bright": 0,
+        "where": []
+      }
+    },
+    {
+      "name": "Hover: hover asset shown, no canvas-light pixels on the edge / corner",
+      "status": "PASS",
+      "data": {
+        "vis": [
+          "hidden",
+          "visible"
+        ],
+        "bright": 0,
+        "where": []
+      }
+    },
+    {
+      "name": "click closes the panel, focus back on 속성창 trigger",
+      "status": "PASS",
+      "data": {
+        "open": false,
+        "focusTrigger": true,
+        "log": "legacyToggle → open(true) → open(false)"
+      }
+    },
+    {
+      "name": "Escape closes the panel, focus back on 속성창 trigger",
+      "status": "PASS",
+      "data": {
+        "open": false,
+        "focusTrigger": true,
+        "log": "rue) → open(false) → legacyToggle → open(true) → open(false)"
+      }
+    },
+    {
+      "name": "no console / page errors",
+      "status": "PASS",
+      "data": []
+    }
+  ],
+  "errors": [],
+  "pixels": {
+    "def": {
+      "bright": 0,
+      "where": []
+    },
+    "hov": {
+      "bright": 0,
+      "where": []
+    }
+  }
+}