Finalize dev-1.3 upgrades and Seerr updates

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20-slim AS frontend-builder
+FROM node:24-slim AS frontend-builder
 
 WORKDIR /frontend
 
@@ -6,8 +6,8 @@ ENV NODE_ENV=production \
     BACKEND_INTERNAL_URL=http://127.0.0.1:8000 \
     NEXT_PUBLIC_API_BASE=/api
 
-COPY frontend/package.json ./
-RUN npm install
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm ci --include=dev
 
 COPY frontend/app ./app
 COPY frontend/public ./public
@@ -17,7 +17,7 @@ COPY frontend/tsconfig.json ./tsconfig.json
 
 RUN npm run build
 
-FROM python:3.12-slim
+FROM python:3.14-slim
 
 WORKDIR /app
 
@@ -27,7 +27,7 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends curl gnupg supervisor \
-    && curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
+    && curl -fsSL https://deb.nodesource.com/setup_24.x | bash - \
     && apt-get install -y --no-install-recommends nodejs \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*