feat(phase1): implement OpenCV image processing pipeline

- Create ImageProcessor service with EXIF orientation detection
- Implement smart cropping via OpenCV contour detection (10% padding)
- Add text orientation detection using Hough line transform
- Resize and compress images to 1200px with 85% JPEG quality
- Generate 200px square thumbnails with center crop
- Fallback to Pillow if OpenCV fails
- Comprehensive test suite: 28 tests all passing
- File size validation (reject >10MB)
- Graceful error handling for corrupted/invalid images
- Update requirements.txt with opencv-python, piexif, python-magic

venv/lib/python3.12/site-packages/piexif/_remove.py

@@ -0,0 +1,56 @@
+import io
+
+from ._common import *
+from piexif import _webp
+
+def remove(src, new_file=None):
+    """
+    py:function:: piexif.remove(filename)
+
+    Remove exif from JPEG.
+
+    :param str filename: JPEG
+    """
+    output_is_file = False
+    if src[0:2] == b"\xff\xd8":
+        src_data = src
+        file_type = "jpeg"
+    elif src[0:4] == b"RIFF" and src[8:12] == b"WEBP":
+        src_data = src
+        file_type = "webp"
+    else:
+        with open(src, 'rb') as f:
+            src_data = f.read()
+        output_is_file = True
+        if src_data[0:2] == b"\xff\xd8":
+            file_type = "jpeg"
+        elif src_data[0:4] == b"RIFF" and src_data[8:12] == b"WEBP":
+            file_type = "webp"
+
+    if file_type == "jpeg":
+        segments = split_into_segments(src_data)
+        exif = get_exif_seg(segments)
+        if exif:
+            new_data = src_data.replace(exif, b"")
+        else:
+            new_data = src_data
+    elif file_type == "webp":
+        try:
+            new_data = _webp.remove(src_data)
+        except ValueError:
+            new_data = src_data
+        except e:
+            print(e.args)
+            raise ValueError("Error occurred.")
+
+    if isinstance(new_file, io.BytesIO):
+        new_file.write(new_data)
+        new_file.seek(0)
+    elif new_file:
+        with open(new_file, "wb+") as f:
+            f.write(new_data)
+    elif output_is_file:
+        with open(src, "wb+") as f:
+            f.write(new_data)
+    else:
+        raise ValueError("Give a second argument to 'remove' to output file")