build(deps-dev): bump typescript to 6.0.3 with tsconfig migration

TS 6 deprecates baseUrl (removal in 7.0). The bare 'src/...' import
alias now resolves through paths (tsconfig-relative since TS 5.0)
instead of baseUrl.

Author: chhoumann

package-lock.json

@@ -49,7 +49,7 @@
 		"svelte-check": "^4.7.1",
 		"svelte-preprocess": "^6.0.5",
 		"tslib": "2.8.1",
-		"typescript": "5.9.3",
+		"typescript": "6.0.3",
 		"vite": "^8.1.3",
 		"vitest": "^4.1.10"
 	},

package.json

@@ -1,6 +1,8 @@
 {
 	"compilerOptions": {
-		"baseUrl": ".",
+		"paths": {
+			"src/*": ["./src/*"]
+		},
 		"module": "ESNext",
 		"target": "ES2020",
 		"moduleResolution": "bundler",