Fix all ESLint errors: remove unused imports, replace any types

- Remove ~60 unused imports and variables across 88 files
- Replace ~80 `any` type annotations with proper types (unknown,
  Record<string, unknown>, or specific types)
- Prefix unused callback args with underscore
- Fix unescaped JSX entities
- Lint now passes cleanly (0 errors, 2 intentional img warnings)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/lib/services/invoices.ts

@@ -96,7 +96,7 @@ export async function listInvoices(portId: string, query: ListInvoicesInput) {
     archivedAtColumn: invoices.archivedAt,
     sort: query.sort
       ? {
-          column: invoices[query.sort as keyof typeof invoices] as any,
+          column: invoices[query.sort as keyof typeof invoices] as unknown,
           direction: query.order,
         }
       : undefined,
@@ -379,7 +379,7 @@ export async function updateInvoice(
 
     const [result] = await tx
       .update(invoices)
-      .set(updateData as any)
+      .set(updateData as Record<string, unknown>)
       .where(and(eq(invoices.id, id), eq(invoices.portId, portId)))
       .returning();