docs: add privacy policy and extension documentation

scripts/build_extension.py

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+import json
+import os
+import shutil
+import zipfile
+
+# Configuration
+SOURCE_DIR = "extension"
+BUILD_DIR = "dist-extension"
+OUTPUT_ZIP = "extension-release.zip"
+MANIFEST_FILE = "manifest.json"
+
+# Remove build directory if exists
+if os.path.exists(BUILD_DIR):
+    shutil.rmtree(BUILD_DIR)
+
+# Copy source directory to build directory
+shutil.copytree(SOURCE_DIR, BUILD_DIR)
+
+# Modify manifest.json for production
+manifest_path = os.path.join(BUILD_DIR, MANIFEST_FILE)
+with open(manifest_path, "r") as f:
+    manifest = json.load(f)
+
+# Filter permissions and content scripts (remove localhost)
+print("Removing localhost from manifest...")
+
+# Filter host_permissions
+if "host_permissions" in manifest:
+    manifest["host_permissions"] = [
+        perm for perm in manifest["host_permissions"] 
+        if "localhost" not in perm
+    ]
+
+# Filter content_scripts matches
+if "content_scripts" in manifest:
+    for script in manifest["content_scripts"]:
+        if "matches" in script:
+            script["matches"] = [
+                match for match in script["matches"] 
+                if "localhost" not in match
+            ]
+
+# Save modified manifest
+with open(manifest_path, "w") as f:
+    json.dump(manifest, f, indent=2)
+
+# Create ZIP file
+print(f"Creating {OUTPUT_ZIP}...")
+with zipfile.ZipFile(OUTPUT_ZIP, "w", zipfile.ZIP_DEFLATED) as zipf:
+    for root, dirs, files in os.walk(BUILD_DIR):
+        for file in files:
+            file_path = os.path.join(root, file)
+            arcname = os.path.relpath(file_path, BUILD_DIR)
+            zipf.write(file_path, arcname)
+
+# Cleanup
+shutil.rmtree(BUILD_DIR)
+print(f"Done! {OUTPUT_ZIP} is ready for upload to Chrome Web Store.")

scripts/resize_screenshot.py

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+from PIL import Image, ImageOps
+
+def resize_image_canvas(input_path, output_path, canvas_width, canvas_height, bg_color=(255, 255, 255)):
+    """
+    Resizes an image to fit within a specific canvas size, centering it and adding padding.
+    """
+    try:
+        original_image = Image.open(input_path)
+
+        # Calculate aspect ratios
+        img_ratio = original_image.width / original_image.height
+        canvas_ratio = canvas_width / canvas_height
+
+        # Determine new dimensions
+        if img_ratio > canvas_ratio:
+            # Image is wider than canvas
+            new_width = canvas_width
+            new_height = int(canvas_width / img_ratio)
+        else:
+            # Image is taller than canvas
+            new_height = canvas_height
+            new_width = int(canvas_height * img_ratio)
+
+        # Resize the original image
+        resized_image = original_image.resize((new_width, new_height), Image.Resampling.LANCZOS)
+
+        # Create a new canvas with the specified background color
+        new_image = Image.new("RGB", (canvas_width, canvas_height), bg_color)
+
+        # Calculate position to center the image
+        x_offset = (canvas_width - new_width) // 2
+        y_offset = (canvas_height - new_height) // 2
+
+        # Paste the resized image onto the canvas
+        new_image.paste(resized_image, (x_offset, y_offset))
+
+        # Save the result
+        new_image.save(output_path, quality=95)
+        print(f"Success! Image saved to {output_path}")
+
+    except Exception as e:
+        print(f"Error: {e}")
+
+if __name__ == "__main__":
+    # Example usage:
+    # Replace 'screenshot.png' with your actual file name
+    # We will look for png or jpg files in current dir if not specified
+    import glob
+    import sys
+
+    files = glob.glob("*.png") + glob.glob("*.jpg") + glob.glob("*.jpeg")
+
+    if not files:
+        print("No image files found in the current directory.")
+        sys.exit(1)
+
+    print("Found images:", files)
+    input_file = files[0] # Take the first one found
+    print(f"Processing {input_file}...")
+
+    resize_image_canvas(input_file, "cws_screenshot_1280x800.png", 1280, 800, bg_color=(245, 247, 250)) # Light gray-ish background matching the app