feat: Initialize frontend with React, Vite, and Tailwind CSS

- Set up main entry point for React application.
- Create About, Home, NotFound, Privacy, and Terms pages with SEO support.
- Implement API service for file uploads and task management.
- Add global styles using Tailwind CSS.
- Create utility functions for SEO and text processing.
- Configure Vite for development and production builds.
- Set up Nginx configuration for serving frontend and backend.
- Add scripts for cleanup of expired files and sitemap generation.
- Implement deployment script for production environment.

backend/app/routes/image.py

@@ -0,0 +1,122 @@
+"""Image processing routes."""
+from flask import Blueprint, request, jsonify
+
+from app.extensions import limiter
+from app.utils.file_validator import validate_file, FileValidationError
+from app.utils.sanitizer import generate_safe_path
+from app.tasks.image_tasks import convert_image_task, resize_image_task
+
+image_bp = Blueprint("image", __name__)
+
+ALLOWED_IMAGE_TYPES = ["png", "jpg", "jpeg", "webp"]
+ALLOWED_OUTPUT_FORMATS = ["jpg", "png", "webp"]
+
+
+@image_bp.route("/convert", methods=["POST"])
+@limiter.limit("10/minute")
+def convert_image_route():
+    """
+    Convert an image to a different format.
+
+    Accepts: multipart/form-data with:
+        - 'file': Image file (PNG, JPG, JPEG, WebP)
+        - 'format': Target format ("jpg", "png", "webp")
+        - 'quality' (optional): Quality 1-100 (default: 85)
+    Returns: JSON with task_id for polling
+    """
+    if "file" not in request.files:
+        return jsonify({"error": "No file provided."}), 400
+
+    file = request.files["file"]
+    output_format = request.form.get("format", "").lower()
+    quality = request.form.get("quality", "85")
+
+    # Validate output format
+    if output_format not in ALLOWED_OUTPUT_FORMATS:
+        return jsonify({
+            "error": f"Invalid format. Supported: {', '.join(ALLOWED_OUTPUT_FORMATS)}"
+        }), 400
+
+    # Validate quality
+    try:
+        quality = max(1, min(100, int(quality)))
+    except ValueError:
+        quality = 85
+
+    try:
+        original_filename, ext = validate_file(file, allowed_types=ALLOWED_IMAGE_TYPES)
+    except FileValidationError as e:
+        return jsonify({"error": e.message}), e.code
+
+    # Save file
+    task_id, input_path = generate_safe_path(ext, folder_type="upload")
+    file.save(input_path)
+
+    # Dispatch task
+    task = convert_image_task.delay(
+        input_path, task_id, original_filename, output_format, quality
+    )
+
+    return jsonify({
+        "task_id": task.id,
+        "message": "Image conversion started. Poll /api/tasks/{task_id}/status for progress.",
+    }), 202
+
+
+@image_bp.route("/resize", methods=["POST"])
+@limiter.limit("10/minute")
+def resize_image_route():
+    """
+    Resize an image.
+
+    Accepts: multipart/form-data with:
+        - 'file': Image file
+        - 'width' (optional): Target width
+        - 'height' (optional): Target height
+        - 'quality' (optional): Quality 1-100 (default: 85)
+    Returns: JSON with task_id for polling
+    """
+    if "file" not in request.files:
+        return jsonify({"error": "No file provided."}), 400
+
+    file = request.files["file"]
+    width = request.form.get("width")
+    height = request.form.get("height")
+    quality = request.form.get("quality", "85")
+
+    # Validate dimensions
+    try:
+        width = int(width) if width else None
+        height = int(height) if height else None
+    except ValueError:
+        return jsonify({"error": "Width and height must be integers."}), 400
+
+    if width is None and height is None:
+        return jsonify({"error": "At least one of width or height is required."}), 400
+
+    if width and (width < 1 or width > 10000):
+        return jsonify({"error": "Width must be between 1 and 10000."}), 400
+    if height and (height < 1 or height > 10000):
+        return jsonify({"error": "Height must be between 1 and 10000."}), 400
+
+    try:
+        quality = max(1, min(100, int(quality)))
+    except ValueError:
+        quality = 85
+
+    try:
+        original_filename, ext = validate_file(file, allowed_types=ALLOWED_IMAGE_TYPES)
+    except FileValidationError as e:
+        return jsonify({"error": e.message}), e.code
+
+    task_id, input_path = generate_safe_path(ext, folder_type="upload")
+    file.save(input_path)
+
+    task = resize_image_task.delay(
+        input_path, task_id, original_filename, width, height, quality
+    )
+
+    return jsonify({
+        "task_id": task.id,
+        "message": "Image resize started. Poll /api/tasks/{task_id}/status for progress.",
+    }), 202