feat: Revamp EPUB import process with batch upload support and enhanced API integration

- Introduced a new batch import client for handling multiple EPUB files simultaneously.
- Updated API routes for previewing and importing EPUB files, improving error handling and response management.
- Enhanced genre management during import, allowing for dynamic creation and association of genres.
- Implemented long-fetch handling to accommodate lengthy processing times for large EPUB files.
- Refined UI components for better user experience in the import workflow.

pnpm-lock.yaml

@@ -173,6 +173,9 @@ importers:
       tailwind-merge:
         specifier: ^3.3.1
         version: 3.4.0
+      undici:
+        specifier: ^8.2.0
+        version: 8.2.0
       vaul:
         specifier: ^1.1.2
         version: 1.1.2(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)
@@ -2475,6 +2478,10 @@ packages:
   undici-types@6.21.0:
     resolution: {integrity: sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==}
 
+  undici@8.2.0:
+    resolution: {integrity: sha512-Z+4Hx9GE26Lh9Upwfnc8C7SsrpBPGaM/Gm6kMFtiG7c+5IvQKlXi/t+9x9DrrCh29cww5TSP9YdVaBcnLDs5fQ==}
+    engines: {node: '>=22.19.0'}
+
   update-browserslist-db@1.2.3:
     resolution: {integrity: sha512-Js0m9cx+qOgDxo0eMiFGEueWztz+d4+M3rGlmKPT+T4IS/jP4ylw3Nwpu6cpTTP8R1MAC1kF4VbdLt3ARf209w==}
     hasBin: true
@@ -5083,6 +5090,8 @@ snapshots:
 
   undici-types@6.21.0: {}
 
+  undici@8.2.0: {}
+
   update-browserslist-db@1.2.3(browserslist@4.28.1):
     dependencies:
       browserslist: 4.28.1