refactor: full codebase overhaul — dead code removal, env validation, logger migration, date consolidation, Prisma schema cleanup, button consistency, useEffect deps, test coverage

- env.ts: added 10 missing Zod-validated env vars (imager, paypal currency, argon2/bcrypt params)
- Migrated 6 modules from process.env to validated env.* (auth, proxy-auth, paypal, password, redis, imager, moderation, alert, logger)
- Replaced console.warn/error with pino logger in 9 server-side modules
- Removed 50+ dead exports (SWF wrappers, coalesceHotelName, signIn, isStaff re-export, formatTimestamp, Skeleton/SkeletonCard, 4 unused housekeeping sections)
- Consolidated date formatting: 28 files migrated to shared formatDate() from @/lib/format-date
- Wired 4 radio/settings API routes through cached siteSettings service instead of raw Prisma queries
- Added getMany()/getAll() helpers to SiteSettings service
- Removed 88 dead Prisma model definitions (schema 2763→1846 lines)
- Created admin action-helper.ts with wrapAction() for standardized error handling
- Fixed useEffect dependency arrays in 4 data-heavy components
- Replaced raw btn CSS classes with shadcn Button component across admin pages
- Stripped dead i18n namespaces (common, pages.client) from all 22 translation files
- Removed 2 dead scripts (create-release.sh, check-local-imports.ts)
- Fixed knip.json configuration
- Added 7 new test suites: format-date, paypal, moderation, alert, webhook, action-helper, and fixed password.test.ts for env mocking
- All 358 tests passing across 72 test files
- TypeScript: 0 errors

src/components/admin/catalog-manager/inline-editor.tsx

@@ -144,7 +144,7 @@ export function InlineEditor({ pageId, onSaved }: InlineEditorProps) {
 		}
 		document.addEventListener("keydown", onKeyDown);
 		return () => document.removeEventListener("keydown", onKeyDown);
-	}); // eslint-disable-line react-hooks/exhaustive-deps
+	}, [canEdit, isDirty, saving, page, handleSave]);
 
 	const loadPage = useCallback(
 		async (id: number) => {

src/components/admin/catalog-manager/sortable-tree.tsx

@@ -177,7 +177,6 @@ export function SortableTree({
 	const loadFullTree = loadTabTree;
 
 	// Load tab children when active root changes (same as Catalog Structure expand)
-	// biome-ignore lint/correctness/useExhaustiveDependencies: explicitly chosen here, see surrounding code
 	useEffect(() => {
 		if (activeTabId === null) return;
 		setSearchQuery("");
@@ -185,7 +184,7 @@ export function SortableTree({
 		setFilter("all");
 		dispatch({ type: "COLLAPSE_ALL" });
 		void loadTabTree();
-	}, [activeTabId]); // eslint-disable-line react-hooks/exhaustive-deps
+	}, [activeTabId, loadTabTree]);
 
 	// Debounced search
 	useEffect(() => {
@@ -314,7 +313,6 @@ export function SortableTree({
 	});
 
 	// Auto-scroll to selected page
-	// biome-ignore lint/correctness/useExhaustiveDependencies: explicitly chosen here, see surrounding code
 	useEffect(() => {
 		if (!selectedPageId) return;
 		const idx = flatIds.indexOf(selectedPageId);
@@ -324,9 +322,10 @@ export function SortableTree({
 				virtualizer.scrollToIndex(idx, { align: "center" }),
 			);
 		}
-	}, [selectedPageId]); // eslint-disable-line react-hooks/exhaustive-deps
+	}, [selectedPageId, flatIds, virtualizer]);
 
 	// ── Keyboard navigation ─────────────────────────────────────
+	const handleDeleteRef = useRef<(id: number) => Promise<void>>(async () => {});
 	// biome-ignore lint/correctness/useExhaustiveDependencies: explicitly chosen here, see surrounding code
 	useEffect(() => {
 		function onKeyDown(e: KeyboardEvent) {
@@ -388,7 +387,7 @@ export function SortableTree({
 				dispatch({ type: "TOGGLE_MULTI_SELECT", id: focusedId });
 			} else if (e.key === "Delete" && focusedId) {
 				e.preventDefault();
-				handleDelete(focusedId);
+				handleDeleteRef.current(focusedId);
 			}
 		}
 		document.addEventListener("keydown", onKeyDown);
@@ -403,7 +402,7 @@ export function SortableTree({
 		dispatch,
 		onSelectPage,
 		handleToggleExpand,
-	]); // eslint-disable-line react-hooks/exhaustive-deps
+	]);
 
 	// ── Selection with Ctrl/Shift ───────────────────────────────
 	const handleSelect = useCallback(
@@ -587,6 +586,7 @@ export function SortableTree({
 			toast.error("Failed to delete page");
 		}
 	};
+	handleDeleteRef.current = handleDelete;
 
 	const handleDuplicate = async (id: number) => {
 		if (!canEdit) return;