feat(books): add read-aloud generation

Generate a synced read-aloud EPUB from a book's EPUB and audiobook through an
optional STAlign worker (Docker on CPU, or native with MLX on Apple Silicon),
with review, re-sync, replace in place, restart recovery and live progress on
the Files tab. Book details also stack the ebook and audiobook covers when
both exist. See docs/READ_ALOUD.md.

pnpm-workspace.yaml

@@ -2,6 +2,7 @@ packages:
   - "client"
   - "server"
   - "packages/*"
+  - "workers/*"
 overrides:
   "@fastify/busboy": ^3.2.1
   "@xhmikosr/decompress": ^11.1.4
@@ -48,14 +49,18 @@ allowBuilds:
   "@ffprobe-installer/win32-ia32": true
   "@ffprobe-installer/win32-x64": true
   "@nestjs/core": true
+  "@storyteller-platform/align": true
   "@parcel/watcher": true
   "@scarf/scarf": false
   "@swc/core": true
   esbuild: true
+  onnxruntime-node: true
+  protobufjs: true
   sharp: true
   unrs-resolver: true
   vue-demi: false
 patchedDependencies:
+  "@storyteller-platform/ghost-story@0.3.4": patches/@storyteller-platform__ghost-story@0.3.4.patch
   "@embedpdf/core@2.15.1": patches/@embedpdf__core@2.15.1.patch
   "@embedpdf/engines@2.15.1": patches/@embedpdf__engines@2.15.1.patch
   "@embedpdf/plugin-scroll@2.15.1": patches/@embedpdf__plugin-scroll@2.15.1.patch