website: gate every yaml config example against the real plugin surface

New doc-sync gate verify-website-yaml: each ```yaml block under
website/zh-CN (api/ excluded — generator-owned) must parse with the loader's
real schema (JSON_SCHEMA + !!js), use only EntryOptions keys, name only real
workspace packages, and pass only config keys the plugin's declared Config
type / schemastery schema accepts (collectConfigCatalog drives the key sets).
```yaml ignore-check opts out a deliberate-placeholder block (the
capability-trio tutorial keeps its fictional package names).

website/zh-CN/develop/practice/index.md

@@ -140,7 +140,7 @@ export function apply(ctx: Context) {
 
 ### 在 cordis.yml 中组合
 
-```yaml
+```yaml ignore-check
 - name: '@deepseek-ai/dsh-my-cap-local'
 - name: '@deepseek-ai/dsh-tool-my-cap'
 ```