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/fastq/eslint.config.js

@@ -0,0 +1,11 @@
+const neostandard = require('neostandard')
+
+module.exports = [
+  ...neostandard(),
+  {
+    name: 'node-0.10-compatibility',
+    rules: {
+      'object-shorthand': 'off' // Disable ES6 object shorthand for Node.js 0.10 compatibility
+    }
+  }
+]