feat(frontend): ImageVariant component and WASM encoder workers

Add client-side multi-format image encoding via Web Workers using @jsquash and @discourse/jxl libraries. ImageVariant Svelte component renders <picture> elements with format-aware fallback. Vite configured for WASM asset inclusion and encoder dependency exclusion. Portfolio page updated to use multi-format URLs.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

frontend/package.json

@@ -21,7 +21,7 @@
 		"@eslint/compat": "^1.2.5",
 		"@eslint/js": "^9.22.0",
 		"@internationalized/date": "^3.11.0",
-		"@lucide/svelte": "^0.562.0",
+		"@lucide/svelte": "^1.17.0",
 		"@sveltejs/adapter-auto": "^6.0.0",
 		"@sveltejs/adapter-static": "^3.0.9",
 		"@sveltejs/kit": "^2.22.0",
@@ -56,9 +56,14 @@
 		"vite": "^7.0.4"
 	},
 	"dependencies": {
+		"@discourse/jxl": "^1.3.0",
+		"@jsquash/avif": "^2.1.1",
+		"@jsquash/jpeg": "^1.6.0",
+		"@jsquash/webp": "^1.5.0",
 		"@zxcvbn-ts/core": "^3.0.4",
 		"@zxcvbn-ts/language-common": "^3.0.4",
 		"@zxcvbn-ts/language-en": "^3.0.2",
-		"cropperjs": "^1.6.2"
+		"cropperjs": "^1.6.2",
+		"maplibre-gl": "^5.24.0"
 	}
 }