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/atomic-sleep/index.js

@@ -0,0 +1,38 @@
+'use strict'
+
+/* global SharedArrayBuffer, Atomics */
+
+if (typeof SharedArrayBuffer !== 'undefined' && typeof Atomics !== 'undefined') {
+  const nil = new Int32Array(new SharedArrayBuffer(4))
+
+  function sleep (ms) {
+    // also filters out NaN, non-number types, including empty strings, but allows bigints
+    const valid = ms > 0 && ms < Infinity 
+    if (valid === false) {
+      if (typeof ms !== 'number' && typeof ms !== 'bigint') {
+        throw TypeError('sleep: ms must be a number')
+      }
+      throw RangeError('sleep: ms must be a number that is greater than 0 but less than Infinity')
+    }
+
+    Atomics.wait(nil, 0, 0, Number(ms))
+  }
+  module.exports = sleep
+} else {
+
+  function sleep (ms) {
+    // also filters out NaN, non-number types, including empty strings, but allows bigints
+    const valid = ms > 0 && ms < Infinity 
+    if (valid === false) {
+      if (typeof ms !== 'number' && typeof ms !== 'bigint') {
+        throw TypeError('sleep: ms must be a number')
+      }
+      throw RangeError('sleep: ms must be a number that is greater than 0 but less than Infinity')
+    }
+    const target = Date.now() + Number(ms)
+    while (target > Date.now()){}
+  }
+
+  module.exports = sleep
+
+}