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/eslint/messages/plugin-conflict.js

@@ -0,0 +1,22 @@
+"use strict";
+
+module.exports = function(it) {
+    const { pluginId, plugins } = it;
+
+    let result = `ESLint couldn't determine the plugin "${pluginId}" uniquely.
+`;
+
+    for (const { filePath, importerName } of plugins) {
+        result += `
+- ${filePath} (loaded in "${importerName}")`;
+    }
+
+    result += `
+
+Please remove the "plugins" setting from either config or remove either plugin installation.
+
+If you still can't figure out the problem, please stop by https://eslint.org/chat/help to chat with the team.
+`;
+
+    return result;
+};