feat(scan): whiten receipt backgrounds and embed OCR in PDFs

agents/fedeo-device-agent/src/scan/sane.ts

@@ -53,7 +53,12 @@ export const runScan = async (
     const postprocess = booleanSetting(settings, "postprocess", config.scanPostprocess)
     const profile = stringSetting(settings, "postprocessProfile") || config.postprocessProfile
     if (!["document", "receipt", "raw"].includes(profile)) throw new Error("Unbekanntes Nachbearbeitungsprofil")
-    await checkScanRuntime(config, postprocess)
+    const processing = {
+        backgroundCleanup: booleanSetting(settings, "backgroundCleanup", config.scanBackgroundCleanup),
+        ocr: format === "pdf" && booleanSetting(settings, "ocr", config.scanOcr),
+        ocrLanguage: stringSetting(settings, "ocrLanguage") || config.scanOcrLanguage,
+    }
+    await checkScanRuntime(config, postprocess, processing)
 
     // Each physical scan has its own directory. A filename cannot escape it or overwrite another job.
     await mkdir(config.workDir, { recursive: true, mode: 0o700 })
@@ -111,8 +116,8 @@ export const runScan = async (
             throw new Error("Der Duplex-Scan ist unvollständig: Zu einer Vorderseite fehlt die Rückseite.")
         }
 
-        await reportProgress(`${pages.length} Seiten gescannt. Datei wird erstellt...`)
-        return await createScanDocument(config, pages, outputPath, resolution, postprocess, profile as AgentConfig["postprocessProfile"])
+        await reportProgress(`${pages.length} Seiten gescannt. ${processing.ocr ? "Durchsuchbares PDF mit OCR wird erstellt..." : "Datei wird erstellt..."}`)
+        return await createScanDocument(config, pages, outputPath, resolution, postprocess, profile as AgentConfig["postprocessProfile"], processing)
     } catch (error) {
         const message = error instanceof Error ? error.message : String(error)
         throw new Error(`${message} Rohscans bleiben zur Wiederherstellung in ${jobDir}.`)