fix(docs): include API key header in generated code samples (#6630)

apps/docs/lib/openapi-code-samples.ts

@@ -0,0 +1,21 @@
+import type { InlineCodeUsageGenerator } from 'fumadocs-openapi/requests/generators'
+import { createCodeUsageGeneratorRegistry } from 'fumadocs-openapi/requests/generators'
+import { registerDefault } from 'fumadocs-openapi/requests/generators/all'
+import { generateWithAuth } from '@/lib/openapi-code-samples-client'
+
+const generators = createCodeUsageGeneratorRegistry()
+registerDefault(generators)
+
+/**
+ * Replace every built-in language sample with one that prepends `headers`,
+ * preserving the built-in tab order, language, and label.
+ */
+export function buildAuthCodeSamples(headers: Record<string, string>): InlineCodeUsageGenerator[] {
+  return Array.from(generators.map().entries()).map(([id, generator]) => ({
+    id,
+    lang: generator.lang,
+    label: generator.label,
+    source: generateWithAuth,
+    serverContext: { generatorId: id, headers },
+  }))
+}