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/lib/worker.js

@@ -0,0 +1,54 @@
+'use strict'
+
+const pino = require('../pino.js')
+const build = require('pino-abstract-transport')
+const loadTransportStreamBuilder = require('./transport-stream')
+
+// This file is not checked by the code coverage tool,
+// as it is not reliable.
+
+/* istanbul ignore file */
+
+module.exports = async function ({ targets, levels, dedupe }) {
+  targets = await Promise.all(targets.map(async (t) => {
+    const fn = await loadTransportStreamBuilder(t.target)
+    const stream = await fn(t.options)
+    return {
+      level: t.level,
+      stream
+    }
+  }))
+  return build(process, {
+    parse: 'lines',
+    metadata: true,
+    close (err, cb) {
+      let expected = 0
+      for (const transport of targets) {
+        expected++
+        transport.stream.on('close', closeCb)
+        transport.stream.end()
+      }
+
+      function closeCb () {
+        if (--expected === 0) {
+          cb(err)
+        }
+      }
+    }
+  })
+
+  function process (stream) {
+    const multi = pino.multistream(targets, { levels, dedupe })
+    // TODO manage backpressure
+    stream.on('data', function (chunk) {
+      const { lastTime, lastMsg, lastObj, lastLevel } = this
+      multi.lastLevel = lastLevel
+      multi.lastTime = lastTime
+      multi.lastMsg = lastMsg
+      multi.lastObj = lastObj
+
+      // TODO handle backpressure
+      multi.write(chunk + '\n')
+    })
+  }
+}