dev-api: add developer portal, OpenAPI spec, and Flatenbadet case study

- New /developers/ page with API docs, SDKs, pricing, use cases
- OpenAPI 3.0 spec for Orders, Missions, Photos, Analytics
- Case study: Glasskiosken i Flatenbadet — complete ROI analysis
- Updated /order/ with recurring missions and frequency dropdown

memory/projects/landvex-site.md

@@ -112,3 +112,25 @@
 - ` M` landvex-site/sw.js
 - `??` landvex-site/assets-backup-20260714-094215/
 - `??` landvex-site/deploy-warning.html
+
+<!-- memory-saver:6cc1b1c4c93152d4 -->
+## 2026-07-14 13:20 UTC
+
+- ` M` landvex-site/blog/index.html
+- ` M` landvex-site/cities/index.html
+- ` M` landvex-site/dashboard.html
+- ` M` landvex-site/goteborg-intelligence.html
+- ` M` landvex-site/inspection-report.html
+- ` M` landvex-site/inspector-app.html
+- ` M` landvex-site/label.html
+- ` M` landvex-site/language-popup.html
+- ` M` landvex-site/lonespec-johan-2026-06.html
+- ` M` landvex-site/lonespec-preview.html
+- ` M` landvex-site/lonespec-tmp-print.html
+- ` M` landvex-site/lonespec-v2.html
+- ` M` landvex-site/malmo-intelligence.html
+- ` M` landvex-site/nordea-kyc-v3.html
+- ` M` landvex-site/not-landvex-foods/index.html
+- ` M` landvex-site/reviews.html
+- ` M` landvex-site/stockholm-intelligence.html
+- ` M` landvex-site/uppsala-intelligence.html