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/fast-copy/rollup/config.cjs.js

@@ -0,0 +1,11 @@
+import baseConfig from './config.base.js';
+import pkg from './packageJson.js';
+
+export default {
+  ...baseConfig,
+  output: {
+    ...baseConfig.output,
+    file: pkg.main,
+    format: 'cjs',
+  },
+};