feat(seo): facts in src/data/business.ts, SEO + JSON-LD components in layout

- business.ts: single source of truth; unknown facts (city, area, prices,
  packages, phone, delivery time, experience, testimonials) are null and are
  skipped everywhere. faq.ts builds answers only from known facts.
- portfolio-meta.ts: data hook for real per-image alt texts.
- SEO.astro: title, description, canonical, Open Graph, Twitter, og:image
  (EXIF-free JPG via getImage, absolute URL).
- SchemaOrg.astro: @graph with WebSite, Person, ProfessionalService
  (sameAs, ReserveAction to the customer portal, offer catalog without
  prices), WebPage, optional FAQPage and BreadcrumbList.
- MainLayout: lang=sv, Swedish nav (adds Tjänster), consent banner and
  footer in Swedish, lyxlimo/karleksguiden line removed, info@ address.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WvE3C43Uwtv2vtnoFBLDw7

src/components/SEO.astro

@@ -0,0 +1,46 @@
+---
+// src/components/SEO.astro
+// <title>, meta description, canonical, Open Graph och Twitter-kort för en sida.
+import { business } from '../data/business';
+import { normalizePath } from '../lib/url';
+
+export interface Props {
+  title: string;
+  description: string;
+  /** Sökväg utan avslutande snedstreck, t.ex. "/about". Annars härleds den från URL:en. */
+  path?: string;
+  /** Absolut URL till og:image (MainLayout tar fram en EXIF-fri JPG via getImage). */
+  imageUrl: string;
+  imageWidth?: number;
+  imageHeight?: number;
+  imageAlt: string;
+  type?: 'website' | 'profile' | 'article';
+  noindex?: boolean;
+}
+
+const { title, description, path, imageUrl, imageWidth, imageHeight, imageAlt, type = 'website', noindex = false } = Astro.props;
+
+const site = Astro.site ?? new URL(business.url);
+const canonical = new URL(normalizePath(path ?? Astro.url.pathname), site).toString();
+---
+
+<title>{title}</title>
+<meta name="description" content={description} />
+{noindex ? <meta name="robots" content="noindex, follow" /> : <link rel="canonical" href={canonical} />}
+
+<meta property="og:type" content={type} />
+<meta property="og:site_name" content={business.brand} />
+<meta property="og:locale" content="sv_SE" />
+<meta property="og:title" content={title} />
+<meta property="og:description" content={description} />
+<meta property="og:url" content={canonical} />
+<meta property="og:image" content={imageUrl} />
+{imageWidth && <meta property="og:image:width" content={String(imageWidth)} />}
+{imageHeight && <meta property="og:image:height" content={String(imageHeight)} />}
+<meta property="og:image:alt" content={imageAlt} />
+
+<meta name="twitter:card" content="summary_large_image" />
+<meta name="twitter:title" content={title} />
+<meta name="twitter:description" content={description} />
+<meta name="twitter:image" content={imageUrl} />
+<meta name="twitter:image:alt" content={imageAlt} />