fix(frontend): WAF 规则编辑器缩小编排区高度和首次适配缩放比例，默认显示更多画布上下文

frontend/app/(main)/waf/rules/editor/components/rule-flow-canvas.tsx

@@ -13,6 +13,7 @@ import {
   type Connection,
   type Edge,
   type EdgeChange,
+  type FitViewOptions,
   type Node,
   type NodeChange,
   type ReactFlowInstance,
@@ -43,6 +44,10 @@ import { NodeLibrary } from './node-library';
 import { RuleNode, type RuleFlowNodeData } from './rule-node';
 
 const nodeTypes = { rule: RuleNode };
+const initialFitViewOptions = {
+  padding: 0.3,
+  maxZoom: 0.85,
+} satisfies FitViewOptions;
 
 type FlowNode = Node<RuleFlowNodeData>;
 type FlowEdge = Edge;
@@ -323,6 +328,7 @@ export function RuleFlowCanvas({
           onSelectEdge(undefined);
         }}
         fitView
+        fitViewOptions={initialFitViewOptions}
         deleteKeyCode={['Backspace', 'Delete']}
       >
         <Background gap={20} size={1} />

frontend/app/(main)/waf/rules/editor/page.tsx

@@ -184,7 +184,7 @@ function EditorContent() {
     return <EditorSkeleton />;
 
   return (
-    <div className='flex h-[calc(100dvh-4rem)] w-full flex-col px-1 py-6'>
+    <div className='flex h-[calc(100dvh-8rem)] w-full flex-col px-1 py-6'>
       <UnsavedChanges dirty={dirty} />
       <header className='mb-4 flex items-center justify-between gap-4'>
         <div className='flex min-w-0 items-center gap-2'>

frontend/lib/theme/themes.json

@@ -4559,4 +4559,4 @@
       }
     }
   }
-]
+]