Fix chemin PDF en production pour l'API pdf-outline

En prod le PDF est dans .output/public/, pas dans public/.
Cherche dans les deux emplacements (dev et prod).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/api/admin/pdf-outline.get.ts

@@ -1,10 +1,18 @@
 import { join } from 'node:path'
-import { readFileSync } from 'node:fs'
+import { readFileSync, existsSync } from 'node:fs'
 
 export default defineEventHandler(async () => {
   const config = await readYaml('bookplayer.config.yml')
   const pdfFile = config?.book?.pdfFile || '/pdf/une-economie-du-don.pdf'
-  const pdfPath = join(process.cwd(), 'public', pdfFile)
+
+  // En dev : public/, en prod : .output/public/
+  const cwd = process.cwd()
+  const candidates = [
+    join(cwd, 'public', pdfFile),
+    join(cwd, '.output', 'public', pdfFile),
+  ]
+  const pdfPath = candidates.find(p => existsSync(p))
+  if (!pdfPath) return []
 
   let data: Uint8Array
   try {