[flagd-ui] added basic functionality and webui interface

src/flagd-ui/.eslintrc.json

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+{
+  "extends": "next/core-web-vitals"
+}

src/flagd-ui/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+.yarn/install-state.gz
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# local env files
+.env*.local
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

src/flagd-ui/Dockerfile

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+FROM node:20.15.1-slim
+WORKDIR /data
+COPY . .
+RUN npm install
+CMD [ "/bin/bash -c 'npm run dev'" ]
+

src/flagd-ui/README.md

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+This is a [Next.js](https://nextjs.org/) project bootstrapped with [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+# or
+bun dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+
+This project uses [`next/font`](https://nextjs.org/docs/basic-features/font-optimization) to automatically optimize and load Inter, a custom Google Font.
+
+## Learn More
+
+To learn more about Next.js, take a look at the following resources:
+
+- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
+- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+
+You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js/) - your feedback and contributions are welcome!
+
+## Deploy on Vercel
+
+The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/deployment) for more details.

src/flagd-ui/data/output.json

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+{
+  "$schema": "https://flagd.dev/schema/v0/flags.json",
+  "flags": {
+    "productCatalogFailure": {
+      "description": "Fail product catalog service on a specific product",
+      "state": "ENABLED",
+      "variants": {
+        "on": true,
+        "off": false
+      },
+      "defaultVariant": "off"
+    },
+    "recommendationServiceCacheFailure": {
+      "description": "Fail recommendation service cache",
+      "state": "DISABLED",
+      "variants": {
+        "on": true,
+        "off": false
+      },
+      "defaultVariant": "on"
+    },
+    "adServiceManualGc": {
+      "description": "Triggers full manual garbage collections in the ad service",
+      "state": "DISABLED",
+      "variants": {
+        "on": true,
+        "off": false
+      },
+      "defaultVariant": "on"
+    },
+    "adServiceHighCpu": {
+      "description": "Triggers high cpu load in the ad service",
+      "state": "ENABLED",
+      "variants": {
+        "on": true,
+        "off": false
+      },
+      "defaultVariant": "off"
+    },
+    "adServiceFailure": {
+      "description": "Fail ad service",
+      "state": "ENABLED",
+      "variants": {
+        "on": true,
+        "off": false
+      },
+      "defaultVariant": "off"
+    },
+    "kafkaQueueProblems": {
+      "description": "Overloads Kafka queue while simultaneously introducing a consumer side delay leading to a lag spike",
+      "state": "ENABLED",
+      "variants": {
+        "on": 100,
+        "off": 0
+      },
+      "defaultVariant": "off"
+    },
+    "cartServiceFailure": {
+      "description": "Fail cart service",
+      "state": "ENABLED",
+      "variants": {
+        "on": true,
+        "off": false
+      },
+      "defaultVariant": "off"
+    },
+    "paymentServiceFailure": {
+      "description": "Fail payment service charge requests",
+      "state": "ENABLED",
+      "variants": {
+        "on": true,
+        "off": false
+      },
+      "defaultVariant": "off"
+    },
+    "paymentServiceUnreachable": {
+      "description": "Payment service is unavailable",
+      "state": "ENABLED",
+      "variants": {
+        "on": true,
+        "off": false
+      },
+      "defaultVariant": "off"
+    },
+    "loadgeneratorFloodHomepage": {
+      "description": "Flood the frontend with a large amount of requests.",
+      "state": "ENABLED",
+      "variants": {
+        "on": 100,
+        "off": 0
+      },
+      "defaultVariant": "off"
+    },
+    "imageSlowLoad": {
+      "description": "slow loading images in the frontend",
+      "state": "ENABLED",
+      "variants": {
+        "10sec": 10000,
+        "5sec": 5000,
+        "off": 0
+      },
+      "defaultVariant": "off"
+    }
+  }
+}

src/flagd-ui/next.config.mjs

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+/** @type {import('next').NextConfig} */
+const nextConfig = {};
+
+export default nextConfig;