feat: Add comprehensive documentation suite and reorganize project structure

- Created complete documentation in docs/ directory
- Added PROJECT_OVERVIEW.md with feature highlights and getting started guide
- Added ARCHITECTURE.md with system design and technical details
- Added SECURITY.md with comprehensive security implementation guide
- Added DEVELOPMENT.md with development workflows and best practices
- Added DEPLOYMENT.md with production deployment instructions
- Added API.md with complete REST API documentation
- Added CONTRIBUTING.md with contribution guidelines
- Added CHANGELOG.md with version history and migration notes
- Reorganized all documentation files into docs/ directory for better organization
- Updated README.md with proper documentation links and quick navigation
- Enhanced project structure with professional documentation standards

f_scripts/shared/swiper/modules/manipulation/methods/appendSlide.js

@@ -0,0 +1,34 @@
+export default function appendSlide(slides) {
+  const swiper = this;
+  const {
+    params,
+    slidesEl
+  } = swiper;
+  if (params.loop) {
+    swiper.loopDestroy();
+  }
+  const appendElement = slideEl => {
+    if (typeof slideEl === 'string') {
+      const tempDOM = document.createElement('div');
+      tempDOM.innerHTML = slideEl;
+      slidesEl.append(tempDOM.children[0]);
+      tempDOM.innerHTML = '';
+    } else {
+      slidesEl.append(slideEl);
+    }
+  };
+  if (typeof slides === 'object' && 'length' in slides) {
+    for (let i = 0; i < slides.length; i += 1) {
+      if (slides[i]) appendElement(slides[i]);
+    }
+  } else {
+    appendElement(slides);
+  }
+  swiper.recalcSlides();
+  if (params.loop) {
+    swiper.loopCreate();
+  }
+  if (!params.observer || swiper.isElement) {
+    swiper.update();
+  }
+}