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/thread-stream/test/indexes.test.js

@@ -0,0 +1,11 @@
+'use strict'
+
+const { test } = require('tap')
+const indexes = require('../lib/indexes')
+
+for (const index of Object.keys(indexes)) {
+  test(`${index} is lock free`, function (t) {
+    t.equal(Atomics.isLockFree(indexes[index]), true)
+    t.end()
+  })
+}