feat(phase3): worker container + event bus + scheduled jobs

apps/worker:
- BullMQ nightly scheduler (cron 0 3 * * *)
- Redis Streams consumer-group per wired/active project
- Persists events to Event model

schema:
- Event model (streamId unique, project + type indexed)

apps/worker/Dockerfile

@@ -0,0 +1,26 @@
+FROM node:22-alpine AS base
+RUN apk add --no-cache libc6-compat openssl
+WORKDIR /app
+RUN corepack enable && corepack prepare pnpm@9.12.0 --activate
+
+# ---- builder: install everything (need apps/web prisma client) ----
+FROM base AS builder
+ENV NODE_ENV=development
+COPY package.json pnpm-lock.yaml* pnpm-workspace.yaml turbo.json ./
+COPY apps/web/package.json apps/web/package.json
+COPY apps/worker/package.json apps/worker/package.json
+RUN pnpm install --frozen-lockfile --prod=false || pnpm install --prod=false
+COPY . .
+WORKDIR /app/apps/web
+RUN npx --no-install prisma generate
+
+# ---- runner ----
+FROM base AS runner
+ENV NODE_ENV=production
+WORKDIR /app
+COPY --from=builder /app/package.json /app/pnpm-workspace.yaml /app/turbo.json ./
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/apps/web ./apps/web
+COPY --from=builder /app/apps/worker ./apps/worker
+
+CMD ["pnpm","--filter","@panel/worker","start"]