fix(config): ensure analytics URL has protocol to prevent build crash

Dockerfile

@@ -23,12 +23,13 @@ COPY patches* ./patches/
 # Configure private registry and install dependencies
 RUN --mount=type=cache,id=pnpm,target=/pnpm/store \
     --mount=type=secret,id=NPM_TOKEN \
-    export NPM_TOKEN=$(cat /run/secrets/NPM_TOKEN) && \
-    echo "@mintel:registry=https://git.infra.mintel.me/api/packages/mmintel/npm" > .npmrc && \
-    echo "//git.infra.mintel.me/api/packages/mmintel/npm/:_authToken=\${NPM_TOKEN}" >> .npmrc && \
-    pnpm store prune && \
+    if [ -f /run/secrets/NPM_TOKEN ]; then \
+        export NPM_TOKEN=$(cat /run/secrets/NPM_TOKEN); \
+        echo "@mintel:registry=https://git.infra.mintel.me/api/packages/mmintel/npm" > .npmrc; \
+        echo "//git.infra.mintel.me/api/packages/mmintel/npm/:_authToken=${NPM_TOKEN}" >> .npmrc; \
+    fi && \
     pnpm install --no-frozen-lockfile && \
-    rm .npmrc
+    rm -f .npmrc
 
 # Copy source code
 COPY . .