docs(B02): specify installed recommendation styling and footer removal

docs/协作/evidence/B02-01/installed-state.json

@@ -0,0 +1,16 @@
+{
+  "codeSha": "51531dcae8d8ade85db9e203bc8c0f712805b2ae",
+  "installedState": {
+    "state": "current",
+    "cardClasses": "sm-card",
+    "installedClass": false,
+    "addButtonPresent": true,
+    "addButtonDisabled": true,
+    "addSvgPresent": true,
+    "useSlotPresent": false,
+    "footerPresent": true,
+    "footerText": "查看已安装技能"
+  },
+  "errors": [],
+  "scope": "Actual recommended-skill component and CSS in Electron with controlled host; no network or actual skill installation"
+}