add tesseract ocr

src/app/api/ai-settings/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server'
 import { requireAdmin } from '@/lib/auth'
-import { getAiConfig, updateAiConfig, getPreferredLanguage, setPreferredLanguage, getAiMaxRetries, setAiMaxRetries } from '@/lib/app-settings'
+import { getAiConfig, updateAiConfig, getPreferredLanguage, setPreferredLanguage, getAiMaxRetries, setAiMaxRetries, type OcrMode } from '@/lib/app-settings'
 
 export async function GET(request: NextRequest) {
   const auth = await requireAdmin(request)
@@ -34,6 +34,9 @@ export async function PUT(request: NextRequest) {
     maxTokensDescribe?: number
     maxTokensExtract?: number
     maxTokensTranslate?: number
+    ocrMode?: string
+    ocrLanguages?: string
+    ocrConfidenceThreshold?: number
   }
   try {
     body = await request.json()
@@ -47,6 +50,7 @@ export async function PUT(request: NextRequest) {
     promptDescribe, promptTagger, promptExtract, promptTranslate,
     maxRetries,
     maxTokensTag, maxTokensDescribe, maxTokensExtract, maxTokensTranslate,
+    ocrMode, ocrLanguages, ocrConfidenceThreshold,
   } = body
 
   if (typeof endpoint !== 'string') {
@@ -75,6 +79,9 @@ export async function PUT(request: NextRequest) {
     typeof maxTokensDescribe === 'number' ? maxTokensDescribe : undefined,
     typeof maxTokensExtract === 'number' ? maxTokensExtract : undefined,
     typeof maxTokensTranslate === 'number' ? maxTokensTranslate : undefined,
+    (ocrMode === 'hybrid' || ocrMode === 'tesseract' || ocrMode === 'llm') ? (ocrMode as OcrMode) : undefined,
+    typeof ocrLanguages === 'string' ? ocrLanguages : undefined,
+    typeof ocrConfidenceThreshold === 'number' ? ocrConfidenceThreshold : undefined,
   )
 
   if (typeof preferredLanguage === 'string' && preferredLanguage.trim()) {