fix a image link (no /),try to support both GH and Netlify

Author: Jove Zhong

.github/workflows/deploy.yml

@@ -26,6 +26,8 @@ jobs:
 
       - name: Build
         run: pnpm run build
+        env:
+          GH_PAGE: true
 
       - name: Deploy to GitHub Pages
         uses: JamesIves/github-pages-deploy-action@v4

src/data/demos.ts

@@ -127,7 +127,7 @@ group by window_start,orderNumber;`,
       "Collect logs, metrics and tracing via OpenTelemetry, export to Kafka, filter and aggregated by streaming SQL and build dashboards in Timeplus or Grafana.",
     category: "Observability",
     keywords: ["kafka", "opentelemetry", "grafana", "sql"],
-    coverImage: "/otlp_cover.png",
+    coverImage: "otlp_cover.png",
     introduction: `[OpenTelemetry](https://opentelemetry.io/) is a collection of APIs, SDKs, and tools. Use it to instrument, generate, collect, and export telemetry data (metrics, logs, and traces) to help you analyze your software’s performance and behavior.
 You can install OpenTelemetry collectors on Linux and export data as JSON documents in Kafka topics and have Timeplus to run streaming ETL, routing, alerts and visualization.`,
     challenges: `1️⃣ While the OpenTelemetry schema is open and flexible, the exported JSON documents are usually with thousands of lines per messages, with nested structure. Parsing and filtering such complex JSON documents are not easy and error-prone.

vite.config.ts

@@ -3,8 +3,8 @@ import react from "@vitejs/plugin-react";
 import { defineConfig } from "vite";
 
 // Set base path dynamically based on environment
-const isProduction = process.env.NODE_ENV === "production";
-const basePath = isProduction ? "/demos.timeplus.com/" : "";
+const isGithubPage = process.env.GH_PAGE === "true";
+const basePath = isGithubPage ? "/demos.timeplus.com/" : "";
 
 export default defineConfig({
   base: basePath,