finished easyocr and pipeline

tools/OcrDaemon/OcrHandler.cs

@@ -401,6 +401,33 @@ class OcrHandler(TesseractEngine engine)
         }
     }
 
+    /// <summary>
+    /// Run Tesseract OCR on an already-preprocessed bitmap. Converts to Mat, pads,
+    /// runs PSM-6, and adjusts word coordinates to screen space using the supplied region.
+    /// </summary>
+    public DiffOcrResponse RunTesseractOnBitmap(Bitmap processedBmp, RegionRect region, int pad = 10, int upscale = 2, int psm = 6)
+    {
+        using var processedMat = BitmapConverter.ToMat(processedBmp);
+        using var padded = new Mat();
+        Cv2.CopyMakeBorder(processedMat, padded, pad, pad, pad, pad, BorderTypes.Constant, Scalar.White);
+        using var bmp = BitmapConverter.ToBitmap(padded);
+        using var pix = ImageUtils.BitmapToPix(bmp);
+        using var page = engine.Process(pix, (PageSegMode)psm);
+
+        var text = page.GetText();
+        int effUpscale = upscale > 0 ? upscale : 1;
+        var lines = ImageUtils.ExtractLinesFromPage(page,
+            offsetX: region.X - pad / effUpscale,
+            offsetY: region.Y - pad / effUpscale);
+
+        return new DiffOcrResponse
+        {
+            Text = text,
+            Lines = lines,
+            Region = region,
+        };
+    }
+
     public object HandleTest(Request req) => RunTestCases(new DiffOcrParams(), verbose: true);
 
     public object HandleTune(Request req)