Add runtime and buildtime args

Dockerfile

@@ -3,6 +3,14 @@ FROM node:18-alpine AS builder
 
 WORKDIR /app
 
+ARG NEXT_PUBLIC_SUPABASE_URL
+ARG NEXT_PUBLIC_SUPABASE_ANON_KEY
+
+# Build-time environment variables
+ENV NEXT_TELEMETRY_DISABLED=1 \
+    NEXT_PUBLIC_SUPABASE_URL=$NEXT_PUBLIC_SUPABASE_URL \
+    NEXT_PUBLIC_SUPABASE_ANON_KEY=$NEXT_PUBLIC_SUPABASE_ANON_KEY
+
 COPY package.json package-lock.json ./
 
 RUN npm ci
@@ -18,8 +26,11 @@ FROM node:18-alpine AS runner
 
 WORKDIR /app
 
+# Run-time environment variables
 ENV NODE_ENV=production \
-    NEXT_TELEMETRY_DISABLED=1
+    NEXT_TELEMETRY_DISABLED=1 \
+    NEXT_PUBLIC_SUPABASE_URL=$NEXT_PUBLIC_SUPABASE_URL \
+    NEXT_PUBLIC_SUPABASE_ANON_KEY=$NEXT_PUBLIC_SUPABASE_ANON_KEY
 
 COPY --from=builder /app/next.config.mjs ./
 COPY --from=builder /app/public ./public