Il repo resta al sito: app in radice, piattaforme nel loro repo

apps/sito passa in radice, apps/platforms si toglie: vive in
gitea:Adriano/InsanityLab-platforms, con la storia del repo comune. I piani e
le specifiche di Longevity e Campus lasciano docs/ e seguono le piattaforme.
README e compose: deploy da /opt/docker/insanitylab/src; al primo deploy .env
va spostato da apps/sito/.env alla radice.

Refs #20

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,23 @@
+# Stage 1: build
+FROM node:22-slim AS build
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+# Stage 2: runtime
+FROM node:22-slim AS runtime
+WORKDIR /app
+ENV NODE_ENV=production
+COPY package.json package-lock.json ./
+RUN npm ci --omit=dev && npm cache clean --force
+COPY --from=build /app/dist ./dist
+COPY scripts ./scripts
+
+ENV HOST=0.0.0.0 \
+    PORT=4321 \
+    DB_PATH=/app/data/insanitylab.db \
+    UPLOADS_DIR=/app/uploads
+EXPOSE 4321
+CMD ["node", "./dist/server/entry.mjs"]