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/pino-std-serializers/lib/err-proto.js

@@ -0,0 +1,48 @@
+'use strict'
+
+const seen = Symbol('circular-ref-tag')
+const rawSymbol = Symbol('pino-raw-err-ref')
+
+const pinoErrProto = Object.create({}, {
+  type: {
+    enumerable: true,
+    writable: true,
+    value: undefined
+  },
+  message: {
+    enumerable: true,
+    writable: true,
+    value: undefined
+  },
+  stack: {
+    enumerable: true,
+    writable: true,
+    value: undefined
+  },
+  aggregateErrors: {
+    enumerable: true,
+    writable: true,
+    value: undefined
+  },
+  raw: {
+    enumerable: false,
+    get: function () {
+      return this[rawSymbol]
+    },
+    set: function (val) {
+      this[rawSymbol] = val
+    }
+  }
+})
+Object.defineProperty(pinoErrProto, rawSymbol, {
+  writable: true,
+  value: {}
+})
+
+module.exports = {
+  pinoErrProto,
+  pinoErrorSymbols: {
+    seen,
+    rawSymbol
+  }
+}