style(ui): system-wide UX/UI polish pass — design-system conformance + copy cleanup (#835)

* style(ui): system-wide UX/UI polish pass — design-system conformance + copy cleanup

Multi-agent scan of all 404 UI files against the locked design system, then
141 verified surgical fixes across 109 files (net -32 lines):

- Remove forbidden elevation/motion: shadow-* and rounded-xl on cards, active:scale
  bounce, hover:shadow on list items, transition-all -> transition-colors.
- Drop font-medium from single-weight Hedvig display headings/numerals.
- Replace raw rainbow Tailwind status colors with Badge variants / brand tokens /
  neutral surfaces (achromatic chrome, semantic colors stay data-only).
- Route raw dates through formatDate(), hand-rolled currency through formatCurrency(),
  add tabular-nums to financial figures; text-gray-* -> text-foreground tokens.
- Swap hand-rolled skeletons for the Skeleton primitive; off-scale spacing -> token scale.
- Fix copy: mislabeled "Leverantörsfakturor" -> "Utgifter" on bank-import outflow total,
  collapse no-op identical-branch ternaries, broken Swedish diacritics (mojibake),
  correct mismatch-password toast, correct supplier currency-field label.
- Remove PII-leaking debug console.log on register, stray console.logs.

Verified: tsc clean on all changed files, eslint clean, production build passes.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(auth): sanitize residual error logs in register flow

Follow-up to PR review (compliance swarm V16 / GDPR Art.5(1)(f)): the
remaining console.error calls in the register flow passed raw error
objects, which Supabase may populate with PII (email) in nested fields.
Log only sanitized message strings instead.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

components/reports/INK2DeclarationView.tsx

@@ -116,13 +116,13 @@ export function INK2DeclarationView({ periodId }: { periodId: string }) {
         <>
           {/* Warnings */}
           {data.warnings.length > 0 && (
-            <Card className="border-orange-200 bg-orange-50">
+            <Card className="border-border">
               <CardContent className="py-4">
                 <div className="flex items-start gap-2">
-                  <AlertCircle className="h-5 w-5 text-orange-600 mt-0.5" />
+                  <AlertCircle className="h-5 w-5 text-warning mt-0.5" />
                   <div>
                     {data.warnings.map((warning, i) => (
-                      <p key={i} className="text-sm text-orange-800">{warning}</p>
+                      <p key={i} className="text-sm text-foreground">{warning}</p>
                     ))}
                   </div>
                 </div>
@@ -137,7 +137,7 @@ export function INK2DeclarationView({ periodId }: { periodId: string }) {
                 <CardTitle>
                   {data.companyInfo.companyName}
                 </CardTitle>
-                <Badge className="bg-primary/10 text-primary">
+                <Badge variant="secondary">
                   {data.fiscalYear.name}
                 </Badge>
               </div>
@@ -170,7 +170,7 @@ export function INK2DeclarationView({ periodId }: { periodId: string }) {
                 <tfoot>
                   <tr className="border-t-2 font-semibold">
                     <td className="py-2">Summa tillgångar</td>
-                    <td className="py-2 text-right">
+                    <td className="py-2 text-right tabular-nums">
                       {formatCurrency(data.totals.totalAssets)}
                     </td>
                   </tr>
@@ -200,7 +200,7 @@ export function INK2DeclarationView({ periodId }: { periodId: string }) {
                 <tfoot>
                   <tr className="border-t-2 font-semibold">
                     <td className="py-2">Summa eget kapital och skulder</td>
-                    <td className="py-2 text-right">
+                    <td className="py-2 text-right tabular-nums">
                       {formatCurrency(data.totals.totalEquityLiabilities)}
                     </td>
                   </tr>