docs(guide): rewrite CLAUDE.md with ZCLAW-first perspective

Major changes:
- Shift from "OpenFang desktop client" to "independent AI Agent desktop app"
- Add decision principle: "Is this useful for ZCLAW? Does it affect ZCLAW?"
- Simplify project structure and tech stack sections
- Replace OpenClaw vs OpenFang comparison with unified backend approach
- Consolidate troubleshooting from scattered sections into organized FAQ
- Update Hands system documentation with 8 capabilities and status
- Stream

desktop/src/components/WorkflowEditor.tsx

@@ -402,7 +402,7 @@ export function WorkflowEditor({ workflow, isOpen, onClose, onSave, isSaving }:
                 </p>
                 <button
                   onClick={handleAddStep}
-                  className="inline-flex items-center gap-1 px-3 py-1.5 text-sm bg-blue-600 text-white rounded-lg hover:bg-blue-700"
+                  className="inline-flex items-center gap-1 px-3 py-1.5 text-sm bg-gray-700 dark:bg-gray-600 text-white rounded-lg hover:bg-gray-800 dark:hover:bg-gray-500"
                 >
                   <Plus className="w-4 h-4" />
                   添加第一个步骤
@@ -438,7 +438,7 @@ export function WorkflowEditor({ workflow, isOpen, onClose, onSave, isSaving }:
           <button
             onClick={handleSave}
             disabled={isSaving}
-            className="px-4 py-2 text-sm bg-blue-600 text-white rounded-lg hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed flex items-center gap-2"
+            className="px-4 py-2 text-sm bg-gray-700 dark:bg-gray-600 text-white rounded-lg hover:bg-gray-800 dark:hover:bg-gray-500 disabled:opacity-50 disabled:cursor-not-allowed flex items-center gap-2"
           >
             {isSaving ? (
               <>