feat(build): Migrate from static Nginx to Node.js server

This commit transitions the application from being served as a static site via Nginx to a full Node.js application, likely Next.js.

The Dockerfile has been completely rewritten to use a multi-stage build process:
- A `builder` stage installs dependencies and builds the application.
- A lean `runner` stage copies only the necessary production artifacts and dependencies to run the application server.

The `.drone.yml` configuration has been updated to align with this new build process and to trigger builds on the `develop` branch in addition to `main`.

Dockerfile

@@ -1,7 +1,32 @@
-FROM nginx:alpine
+FROM node:22.19.0 AS builder
 
-COPY . /usr/share/nginx/html/
+WORKDIR /app
+# RUN apk add --no-cache libc6-compat
 
-EXPOSE 80
 
-CMD ["nginx", "-g", "daemon off;"]
+COPY package*.json ./
+RUN npm i
+
+
+COPY . .
+
+RUN docker build .
+
+#---
+
+FROM node:22.19.0 AS runner
+
+WORKDIR /app
+
+
+COPY package*.json ./
+RUN npm ci --omit=dev
+
+COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/package*.json ./
+
+EXPOSE 3000
+
+CMD ["npm", "start"]