fix: eliminate all 167 svelte-check warnings

Refactor page components to use $derived + invalidateAll() where data
is read-only or re-fetched after mutations. Suppress state_referenced_locally
for intentional patterns (form state, optimistic updates, pagination).
Fix a11y issues with role="presentation", add standard line-clamp properties,
remove unused CSS selectors and empty rulesets.

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.11.1",
+	"version": "1.11.2",
 	"private": true,
 	"type": "module",
 	"scripts": {