feat(02-04): add swipe-to-delete gesture for mobile

- Install svelte-gestures package for touch gesture support
- Add useSwipe hook to EntryCard for left-swipe detection
- Implement delete confirmation overlay on swipe
- Add red delete background revealed during swipe
- Maintain desktop delete button in expanded view

package-lock.json

@@ -12,6 +12,7 @@
 				"better-sqlite3": "^12.6.2",
 				"drizzle-orm": "^0.45.1",
 				"nanoid": "^5.1.6",
+				"svelte-gestures": "^5.2.2",
 				"svelte-persisted-store": "^0.12.0",
 				"tailwindcss": "^4.1.18",
 				"zod": "^4.3.6"
@@ -4722,6 +4723,12 @@
 				}
 			}
 		},
+		"node_modules/svelte-gestures": {
+			"version": "5.2.2",
+			"resolved": "https://registry.npmjs.org/svelte-gestures/-/svelte-gestures-5.2.2.tgz",
+			"integrity": "sha512-Y+chXPaSx8OsPoFppUwPk8PJzgrZ7xoDJKXeiEc7JBqyKKzXer9hlf8F9O34eFuAWB4/WQEvccACvyBplESL7A==",
+			"license": "MIT"
+		},
 		"node_modules/svelte-persisted-store": {
 			"version": "0.12.0",
 			"resolved": "https://registry.npmjs.org/svelte-persisted-store/-/svelte-persisted-store-0.12.0.tgz",