feat: dockerize and auto-deploy on push

Multi-stage image built offline with the sqlx cache (migrations are
already embedded in the binary) on a slim runtime, and a Gitea
Actions workflow that pushes to the registry and triggers the shared
vemmarcar deploy webhook, mirroring the up-track pipeline.

.dockerignore

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+target
+.env
+*.log
+.DS_Store
+docs
+BUGS.md

.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 rust:1-bookworm AS builder
+WORKDIR /app
+COPY Cargo.toml Cargo.lock ./
+COPY src/ src/
+COPY migrations/ migrations/
+COPY .sqlx/ .sqlx/
+# Sem banco no build: as queries vêm do cache do sqlx (.sqlx) e as
+# migrations são embutidas no binário pelo sqlx::migrate!.
+ENV SQLX_OFFLINE=true
+RUN cargo build --release --locked
+
+FROM debian:bookworm-slim
+RUN apt-get update && apt-get install -y ca-certificates && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+COPY --from=builder /app/target/release/schdlr .
+EXPOSE 3000
+CMD ["./schdlr"]