feat: Implement image fetching and storage system

- Add image-fetcher module for downloading and saving images from various sources.
- Create storage module for managing image files, including downloading, verifying integrity, and cleaning up orphaned files.
- Develop gallery HTML page for displaying images with sorting and filtering options.
- Set up RESTful API routes for image management, including fetching, adding tags, and deleting images.
- Introduce setup script for initializing the database and configuring image sources.
- Implement a batch process for verifying image integrity and cleaning up old images.
- Add setup batch script for easy installation and configuration of the image storage system.

public/styles.css

@@ -133,6 +133,51 @@ section h2 {
     font-weight: 500;
 }
 
+.features-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+    gap: 1.5rem;
+}
+
+.feature-card {
+    background-color: var(--bg-secondary);
+    border: 1px solid var(--border);
+    border-radius: 8px;
+    padding: 2rem 1.5rem;
+    text-decoration: none;
+    color: inherit;
+    transition: all 0.3s ease;
+    text-align: center;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    cursor: pointer;
+}
+
+.feature-card:hover {
+    background-color: var(--bg-tertiary);
+    border-color: var(--accent);
+    transform: translateY(-4px);
+    box-shadow: 0 8px 16px rgba(74, 158, 255, 0.2);
+}
+
+.feature-icon {
+    font-size: 2.5rem;
+    margin-bottom: 1rem;
+}
+
+.feature-card h3 {
+    color: var(--accent);
+    margin-bottom: 0.75rem;
+    font-size: 1.1rem;
+}
+
+.feature-card p {
+    color: var(--text-secondary);
+    font-size: 0.95rem;
+    line-height: 1.5;
+}
+
 footer {
     text-align: center;
     padding-top: 2rem;
@@ -159,6 +204,10 @@ footer {
     .info-grid {
         grid-template-columns: 1fr;
     }
+
+    .features-grid {
+        grid-template-columns: 1fr;
+    }
 }
 
 /* Animations */