Add UnverifiedPackageT2/T3 pages, FuneralFinder pre-planning timeframe, PackageDetail variants

- UnverifiedPackageT3: package step for unverified providers (no image,
  estimated pricing disclaimer, "Make an enquiry" CTA, nearby verified
  providers section)
- UnverifiedPackageT2: same but with "Itemised Pricing Unavailable" notice
  replacing the line-item breakdown
- PackageDetail: new props — arrangeLabel, priceDisclaimer, itemizedUnavailable
- FuneralFinderV3: pre-planning follow-up question ("How soon might you
  need this?"), responsive sizing fixes, compulsory validation
- HomePage: fix finder container width (flex stretch + 500px cap)
- .gitignore: exclude Claude/Playwright artifacts, working docs, screenshots

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

.gitignore

@@ -7,3 +7,19 @@ tokens/export/
 .env.*
 .DS_Store
 *.tgz
+
+# Claude / Playwright artifacts
+.playwright-mcp/
+.claude/
+
+# Build logs
+build-storybook.log
+
+# Working docs (not for sharing)
+documentation/
+DESIGN.md
+venue-services-snapshot.md
+temp-db/
+
+# Root-level screenshots
+/*.png