feat: dockerize and auto-deploy on push

Multi-stage image (bun build, nginx serving the SPA with history
fallback and a runtime-resolved /api proxy to the schdlr service) and
a Gitea Actions workflow that pushes to the registry and triggers the
vemmarcar deploy webhook on kauai, mirroring the up-track pipeline.

.dockerignore

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+node_modules
+dist
+.env
+*.log
+.DS_Store

.gitea/workflows/build.yml

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+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - '*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Record start time
+        run: echo "BUILD_START=$(date +%s)" >> $GITHUB_ENV
+
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Gitea Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.possebom.com
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: git.possebom.com/${{ gitea.repository }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=tag
+            type=raw,value=latest,enable=${{ gitea.ref == 'refs/heads/master' }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+
+      - name: Trigger deploy webhook
+        run: |
+          echo "Calling webhook at http://10.2.0.100:9024/hooks/deploy-vemmarcar"
+          HTTP_CODE=$(curl -sv -o /tmp/webhook-response.txt -w "%{http_code}" \
+            -X POST \
+            -H "X-Webhook-Token: 1c3312f18fb477f609c3f2d1e1837026260c04f57d64299a3d4a4f411eec5ceb" \
+            http://10.2.0.100:9024/hooks/deploy-vemmarcar 2>&1 | tee /tmp/webhook-debug.txt | tail -1)
+          echo "--- Response body ---"
+          cat /tmp/webhook-response.txt || true
+          echo ""
+          echo "--- HTTP code: $HTTP_CODE ---"
+          if [ "$HTTP_CODE" != "200" ]; then
+            echo "--- Debug output ---"
+            cat /tmp/webhook-debug.txt || true
+            exit 1
+          fi
+
+      - name: Notify Telegram
+        if: always()
+        run: |
+          STATUS="${{ job.status }}"
+          if [ "$STATUS" = "success" ]; then
+            EMOJI="✅"
+          else
+            EMOJI="❌"
+          fi
+
+          BUILD_END=$(date +%s)
+          DURATION=$((BUILD_END - BUILD_START))
+          MINUTES=$((DURATION / 60))
+          SECONDS=$((DURATION % 60))
+          if [ $MINUTES -gt 0 ]; then
+            TIME_STR="${MINUTES}m ${SECONDS}s"
+          else
+            TIME_STR="${SECONDS}s"
+          fi
+
+          SHORT_SHA="${{ gitea.sha }}"
+          SHORT_SHA="${SHORT_SHA:0:7}"
+
+          MESSAGE="${EMOJI} *Build ${STATUS}*
+
+          📦 *Repo:* ${{ gitea.repository }}
+          🔀 *Branch:* ${{ gitea.ref_name }}
+          👤 *Author:* ${{ gitea.actor }}
+          📝 *Commit:* \`${SHORT_SHA}\`
+          ⏱️ *Tempo:* ${TIME_STR}"
+
+          curl -s -X POST "https://api.telegram.org/bot${{ secrets.TELEGRAM_TOKEN }}/sendMessage" \
+            -d chat_id="${{ secrets.TELEGRAM_CHAT_ID }}" \
+            -d parse_mode="Markdown" \
+            -d text="$MESSAGE"

Dockerfile

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+FROM oven/bun:1 AS build
+WORKDIR /app
+COPY package.json bun.lock ./
+RUN bun install --frozen-lockfile
+COPY . .
+RUN bun run build
+
+FROM nginx:alpine
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=build /app/dist /usr/share/nginx/html
+EXPOSE 80

nginx.conf

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+# Serve a SPA e encaminha /api pro backend (serviço "schdlr" na rede do
+# compose). O fallback pro index.html é o que faz /agendar/x e /painel
+# funcionarem em acesso direto/refresh.
+server {
+    listen 80;
+    server_name _;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    gzip on;
+    gzip_types text/css application/javascript application/json image/svg+xml;
+
+    location /api/ {
+        # proxy_pass via variável: o nome "schdlr" é resolvido em runtime pelo
+        # DNS do Docker (127.0.0.11), então o nginx sobe e sobrevive mesmo com
+        # o backend fora do ar; hostname fixo aqui derruba o container inteiro
+        # na inicialização se o nome ainda não resolver.
+        resolver 127.0.0.11 valid=30s;
+        set $backend http://schdlr:3000;
+        proxy_pass $backend;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # Assets do Vite têm hash no nome: cache longo é seguro.
+    location /assets/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+
+    location / {
+        try_files $uri /index.html;
+    }
+}