chore(docs): 重跑 gen:docs —— 两页占位符示例改为围栏代码块 (#5553)

纯生成物。data/date-macros、data/context-tokens 的占位符示例由缩进块变为
围栏块,花括号不再转义。全量 216 张参考页均通过 @mdx-js/mdx 编译。

Author: os-zhuang

content/docs/references/data/context-tokens.mdx

@@ -14,8 +14,10 @@ These are the sibling vocabulary to `{date-macros}`. Filter values in
 dashboards, views, reports and pages travel as JSON, so a user-scoped
 slice cannot call `currentUser().id` inline — it writes a placeholder:
 
-    { owner_id: '{current_user_id}' }
-    [{ field: 'owner', operator: 'equals', value: '{current_user_id}' }]
+```
+{ owner_id: '{current_user_id}' }
+[{ field: 'owner', operator: 'equals', value: '{current_user_id}' }]
+```
 
 Like date macros, the placeholders are expanded on **both** sides of
 the wire (framework#3582): `resolveContextTokens()` in

content/docs/references/data/date-macros.mdx

@@ -14,8 +14,10 @@ Filter values in dashboards, views, reports and pages travel as JSON.
 Because JSON cannot evaluate code, callers cannot write `daysAgo(30)`
 inline; they use a tiny placeholder grammar instead:
 
-    { published_at: { $gte: '{last_quarter_start}' } }
-    { signal_at:    { $gte: '{30_days_ago}' } }
+```
+{ published_at: { $gte: '{last_quarter_start}' } }
+{ signal_at:    { $gte: '{30_days_ago}' } }
+```
 
 The placeholders are expanded on **both** sides of the wire, so a
 filter behaves the same wherever it is executed (framework#3582):