docs: add implementation plan, add ci script

.github/workflows/deploy.yml

@@ -0,0 +1,66 @@
+name: Deploy SvelteKit
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'src/**'
+      - 'package.json'
+      - 'tsconfig.json'
+      - 'svelte.config.js'
+      - 'vite.config.js'
+      - '.github/workflows/**'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Clean _app directory
+        run: |
+          rm -rf build/_app
+          # Создаем .nojekyll
+          touch build/.nojekyll
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: ./build
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

plans/implementation-plan.md

@@ -0,0 +1,302 @@
+# Twitch Panels Implementation Plan
+
+## 🎯 **Project Overview**
+
+A SvelteKit-based Twitch panel creator with the following key features:
+
+- **320px width** panels with **configurable height** (default 100px)
+- **Multiple image upload methods**: URL, drag-and-drop, Ctrl+V paste
+- **Image cropping interface** with proper constraints
+- **Dynamic text management** (add, edit, delete)
+- **Real-time preview** with navigation
+- **Batch download** using JSZip
+
+## 📁 **Project Structure**
+
+```
+src/
+├── components/
+│   ├── ImageUpload.svelte      # Drag/drop, paste, URL input
+│   ├── ImageCropper.svelte     # Cropperjs integration
+│   ├── TextManager.svelte      # Text CRUD operations
+│   ├── PanelPreview.svelte     # Canvas preview
+│   ├── PanelList.svelte        # Panel navigation
+│   └── DownloadModal.svelte    # Batch download
+├── lib/
+│   ├── utils/
+│   │   ├── imageProcessor.ts   # Image handling
+│   │   ├── textManager.ts      # Text operations
+│   │   ├── panelStorage.ts     # Local storage
+│   │   └── batchProcessor.ts   # JSZip integration
+│   ├── types/
+│   │   ├── panel.ts            # TypeScript interfaces
+│   │   └── errors.ts           # Error types
+│   └── services/
+│       ├── imageService.ts     # Image operations
+│       ├── textService.ts      # Text operations
+│       └── exportService.ts    # Export functionality
+└── stores/
+    ├── panelStore.ts           # Reactive state
+    └── uiStore.ts              # UI state
+```
+
+## 📋 **Implementation Tasks**
+
+### **Setup and Configuration**
+
+- [ ] Install required dependencies (JSZip, cropperjs, file-saver)
+- [ ] Configure TypeScript types for new features
+- [ ] Set up proper error handling structure
+- [ ] Configure GitHub Pages deployment settings
+
+### **Core Image Upload System**
+
+- [ ] Create drag-and-drop zone component
+- [ ] Implement Ctrl+V paste functionality
+- [ ] Add URL-based image loading
+- [ ] Create image validation and error handling
+- [ ] Implement image preview before cropping
+
+### **Image Cropping Interface**
+
+- [ ] Integrate cropperjs library
+- [ ] Create responsive crop interface
+- [ ] Add crop ratio constraints (320px width)
+- [ ] Implement crop confirmation and cancellation
+- [ ] Handle crop errors and edge cases
+
+### **Text Management System**
+
+- [ ] Create dynamic text list component
+- [ ] Implement add/edit/delete text functionality
+- [ ] Add text positioning controls
+- [ ] Implement text styling options (font, size, color)
+- [ ] Add text validation and error handling
+
+### **Canvas Rendering Engine**
+
+- [ ] Upgrade SvelteKonva implementation
+- [ ] Create dynamic height support
+- [ ] Implement real-time preview updates
+- [ ] Add layer management system
+- [ ] Optimize rendering performance
+
+### **Panel Management**
+
+- [ ] Create panel storage system
+- [ ] Implement panel navigation (previous/next)
+- [ ] Add panel deletion functionality
+- [ ] Create panel export queue
+- [ ] Implement panel validation
+
+### **Batch Download System**
+
+- [ ] Integrate JSZip library
+- [ ] Create batch rendering engine
+- [ ] Implement parallel image generation
+- [ ] Add progress tracking
+- [ ] Handle large batch downloads
+- [ ] Create download error recovery
+
+### **User Interface**
+
+- [ ] Design responsive layout
+- [ ] Create modal dialogs for crop/confirm
+- [ ] Add loading states and spinners
+- [ ] Implement keyboard shortcuts
+- [ ] Add tooltips and help text
+- [ ] Create error message system
+
+### **Error Handling and Validation**
+
+- [ ] Implement comprehensive error boundaries
+- [ ] Add input validation for all forms
+- [ ] Create user-friendly error messages
+- [ ] Add retry mechanisms for failed operations
+- [ ] Implement logging for debugging
+
+### **Performance Optimization**
+
+- [ ] Add image compression for uploads
+- [ ] Implement lazy loading for panels
+- [ ] Optimize canvas rendering
+- [ ] Add memory management for large batches
+- [ ] Create debouncing for rapid inputs
+
+### **Testing and Quality Assurance**
+
+- [ ] Create unit tests for core functions
+- [ ] Add integration tests for user flows
+- [ ] Test with various image formats and sizes
+- [ ] Validate error scenarios
+- [ ] Test performance with large datasets
+
+### **Documentation and Deployment**
+
+- [ ] Create user documentation
+- [ ] Add GitHub Pages deployment script
+- [ ] Configure proper build optimization
+- [ ] Set up CI/CD pipeline
+- [ ] Create README with setup instructions
+
+## 🔧 **Technical Implementation Details**
+
+### **Core Components Architecture**
+
+#### **Image Upload System**
+
+- **Drag & Drop**: HTML5 drag API with visual feedback
+- **Paste Handler**: Clipboard API integration
+- **URL Input**: Fetch API with CORS handling
+- **Validation**: File size limits (max 10MB), format checking
+
+#### **Image Cropping**
+
+- **Library**: Cropper.js with Svelte wrapper
+- **Constraints**: Fixed 320px width, variable height
+- **Output**: Base64 cropped images
+- **Error Handling**: Invalid crop areas, format conversion
+
+#### **Text Management**
+
+- **CRUD Operations**: Add, edit, delete text elements
+- **Styling**: Font selection, size, color, positioning
+- **Validation**: Text length limits, character encoding
+- **Real-time Updates**: Live preview synchronization
+
+#### **Canvas Rendering**
+
+- **SvelteKonva**: Enhanced implementation
+- **Dynamic Height**: Flexible panel dimensions
+- **Layer Management**: Background + text layers
+- **Performance**: Debounced updates, lazy rendering
+
+#### **Batch Processing**
+
+- **JSZip**: Parallel image generation
+- **Progress Tracking**: Real-time progress updates
+- **Memory Management**: Stream processing for large batches
+- **Error Recovery**: Failed image retry mechanism
+
+## 🚨 **Error Handling Strategy**
+
+### **Common Issues to Address**
+
+1. **Image Loading Failures**
+   - CORS errors for external URLs
+   - Corrupted image files
+   - Network timeouts
+
+2. **Canvas Rendering Issues**
+   - Memory limits for large canvases
+   - Font loading failures
+   - Invalid text encoding
+
+3. **User Input Errors**
+   - Empty text fields
+   - Invalid image URLs
+   - Crop area too small
+
+4. **Export Problems**
+   - Large batch timeouts
+   - Storage quota exceeded
+   - Browser download restrictions
+
+### **Error Recovery Patterns**
+
+- **Retry Mechanisms**: Exponential backoff for failed operations
+- **Fallback Options**: Default fonts, error images
+- **User Guidance**: Clear error messages with suggested fixes
+- **Graceful Degradation**: Basic functionality without advanced features
+
+## 📱 **User Interface Considerations**
+
+### **Responsive Design**
+
+- **Mobile Support**: Touch-friendly controls
+- **Desktop Optimization**: Keyboard shortcuts
+- **Accessibility**: Screen reader compatibility
+
+### **User Experience**
+
+- **Loading States**: Visual feedback during operations
+- **Progress Indicators**: For batch processes
+- **Undo/Redo**: For text and panel operations
+- **Keyboard Shortcuts**: Ctrl+V for paste, arrow keys for navigation
+
+## 🚀 **Deployment Configuration**
+
+### **GitHub Pages Setup**
+
+- **Base Path**: Automatic path handling for subdirectories
+- **Build Optimization**: Code splitting, lazy loading
+- **Cache Strategy**: Proper cache headers for static assets
+
+### **Performance Optimizations**
+
+- **Image Compression**: WebP format conversion
+- **Lazy Loading**: On-demand panel rendering
+- **Bundle Splitting**: Separate chunks for large libraries
+- **Service Worker**: Offline functionality consideration
+
+## 📊 **Testing Strategy**
+
+### **Test Coverage**
+
+- **Unit Tests**: Individual component testing
+- **Integration Tests**: User workflow validation
+- **Performance Tests**: Large batch processing
+- **Error Scenarios**: Edge case handling
+
+### **Test Data**
+
+- **Sample Images**: Various formats and sizes
+- **Text Content**: Unicode characters, special symbols
+- **Network Conditions**: Slow connections, timeouts
+
+## 🔄 **Data Flow Architecture**
+
+```mermaid
+graph TD
+    A[Image Upload] --> B[Image Validation]
+    B --> C[Image Cropping]
+    C --> D[Text Management]
+    D --> E[Panel Assembly]
+    E --> F[Preview]
+    F --> G[Export/Download]
+
+    H[Local Storage] --> D
+    I[Error Handling] --> B
+    I --> C
+    I --> D
+    I --> E
+```
+
+## 🎯 **Priority Implementation Order**
+
+### **Phase 1: Core Features**
+
+1. Image Upload System (drag/drop, paste, URL)
+2. Image Cropping Interface
+3. Text Management System
+4. Canvas Rendering Engine
+5. Basic Preview
+
+### **Phase 2: Advanced Features**
+
+1. Panel Management System
+2. Batch Download System
+3. User Interface Enhancements
+4. Error Handling Improvements
+
+### **Phase 3: Polish & Deployment**
+
+1. Performance Optimization
+2. Testing & Quality Assurance
+3. Documentation & Deployment
+4. CI/CD Pipeline
+
+---
+
+_Created: 2026-02-03_
+_Last Updated: 2026-02-03_

svelte.config.js

@@ -5,19 +5,13 @@ import { vitePreprocess } from "@sveltejs/vite-plugin-svelte";
 const config = {
   preprocess: vitePreprocess(),
   kit: {
-    adapter: adapter({
+    adapter: adapter(),
-      pages: "build",
+    prerender: {
-      assets: "build",
+      handleHttpError: "ignore",
-      fallback: undefined,
+    },
-      precompress: false,
-      strict: true,
-    }),
     output: {
       bundleStrategy: "inline",
     },
-    paths: {
-      base: "",
-    },
   },
 };
 

vite.config.ts

@@ -2,5 +2,8 @@ import { sveltekit } from "@sveltejs/kit/vite";
 import { defineConfig } from "vite";
 
 export default defineConfig({
+  build: {
+    assetsInlineLimit: Infinity,
+  },
   plugins: [sveltekit()],
 });