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

services/frilans-payout/node_modules/js-tokens/README.md

@@ -0,0 +1,14 @@
+# js-tokens
+
+The tiny, regex powered, lenient, _almost_ spec-compliant JavaScript tokenizer that never fails.
+
+```js
+const jsTokens = require("js-tokens");
+
+const jsString = 'JSON.stringify({k:3.14**2}, null /*replacer*/, "\\t")';
+
+Array.from(jsTokens(jsString), (token) => token.value).join("|");
+// JSON|.|stringify|(|{|k|:|3.14|**|2|}|,| |null| |/*replacer*/|,| |"\t"|)
+```
+
+**[➡️ Full readme](https://github.com/lydell/js-tokens/)**