feat: implement repository hygiene and automation infrastructure

.github/dependabot.yml

@@ -0,0 +1,88 @@
+version: 2
+updates:
+  # GitHub Actions dependencies
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+    open-pull-requests-limit: 5
+    labels:
+      - "dependencies"
+      - "github-actions"
+    commit-message:
+      prefix: "chore"
+      prefix-development: "chore"
+      include: "scope"
+
+  # npm/JavaScript dependencies (if package.json exists)
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+    open-pull-requests-limit: 10
+    versioning-strategy: increase
+    labels:
+      - "dependencies"
+      - "javascript"
+    commit-message:
+      prefix: "chore"
+      prefix-development: "chore"
+      include: "scope"
+    ignore:
+      # Ignore major version updates for now
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]
+
+  # Python dependencies (if requirements.txt, setup.py, or pyproject.toml exists)
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+    open-pull-requests-limit: 10
+    labels:
+      - "dependencies"
+      - "python"
+    commit-message:
+      prefix: "chore"
+      prefix-development: "chore"
+      include: "scope"
+    ignore:
+      # Ignore major version updates for now
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]
+
+  # Docker dependencies (if Dockerfile exists)
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+    open-pull-requests-limit: 5
+    labels:
+      - "dependencies"
+      - "docker"
+    commit-message:
+      prefix: "chore"
+      include: "scope"
+
+  # Go dependencies (if go.mod exists)
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+    open-pull-requests-limit: 10
+    labels:
+      - "dependencies"
+      - "golang"
+    commit-message:
+      prefix: "chore"
+      include: "scope"

.github/markdown-link-check-config.json

@@ -0,0 +1,12 @@
+{
+  "ignorePatterns": [
+    {
+      "pattern": "^http://localhost"
+    }
+  ],
+  "timeout": "20s",
+  "retryOn429": true,
+  "retryCount": 3,
+  "fallbackRetryDelay": "30s",
+  "aliveStatusCodes": [200, 206, 301, 302, 307, 308, 403, 429]
+}

.github/pull_request_template.md

@@ -0,0 +1,71 @@
+## 📋 Descrição
+
+<!-- Descreva as mudanças feitas neste PR. Seja claro e objetivo. -->
+
+### O que mudou?
+
+<!-- Liste as principais alterações -->
+
+### Por quê?
+
+<!-- Explique a motivação para essas mudanças -->
+
+## ✅ Checklist
+
+<!-- Marque os itens aplicáveis com [x] -->
+
+- [ ] O código segue os padrões do projeto
+- [ ] Testes foram executados e estão passando
+- [ ] Documentação foi atualizada (se aplicável)
+- [ ] Commits seguem o padrão [Conventional Commits](https://www.conventionalcommits.org/pt-br/)
+- [ ] Não há conflitos com a branch base
+- [ ] Revisão própria do código foi realizada
+- [ ] Comentários foram adicionados em áreas complexas (se necessário)
+
+## 🔗 Issue Relacionada
+
+<!-- Link para a issue relacionada. Se não houver, remova esta seção. -->
+
+Closes #
+Relates to #
+
+## 🎯 Impacto Esperado
+
+<!-- Descreva quais áreas do projeto são afetadas por essas mudanças -->
+
+### Áreas Afetadas
+
+- [ ] Documentação
+- [ ] Automação/Scripts
+- [ ] Templates
+- [ ] CI/CD
+- [ ] Configuração do Projeto
+- [ ] Outro: ___________
+
+### Impacto de Risco
+
+- [ ] **Baixo** - Mudanças isoladas, sem impacto em funcionalidades existentes
+- [ ] **Médio** - Alterações que podem afetar funcionalidades existentes
+- [ ] **Alto** - Mudanças significativas que requerem atenção especial
+
+## 📸 Capturas de Tela (se aplicável)
+
+<!-- Adicione capturas de tela ou GIFs para demonstrar mudanças visuais -->
+
+## 🧪 Como Testar
+
+<!-- Descreva os passos para testar as mudanças -->
+
+1. 
+2. 
+3. 
+
+## 📝 Notas Adicionais
+
+<!-- Qualquer informação adicional que os revisores devem saber -->
+
+## 🔍 Revisores Sugeridos
+
+<!-- @mencione revisores específicos, se houver -->
+
+@

.github/workflows/auto-label.yml

@@ -0,0 +1,141 @@
+name: Auto Label PRs
+
+on:
+  pull_request:
+    types: [opened, edited, reopened]
+
+permissions:
+  contents: read
+  pull-requests: write
+  issues: write
+
+jobs:
+  auto-label:
+    name: Automatically Label Pull Requests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Auto-label based on PR content
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const prTitle = context.payload.pull_request.title.toLowerCase();
+            const prBody = (context.payload.pull_request.body || '').toLowerCase();
+            const prContent = `${prTitle} ${prBody}`;
+
+            // Define label mapping with keywords
+            const labelMappings = {
+              'enhancement': ['feat', 'feature', 'add', 'implement', 'enhance', 'new'],
+              'bugfix': ['fix', 'bug', 'resolve', 'correct', 'patch', 'repair'],
+              'documentation': ['docs', 'documentation', 'readme', 'guide', 'comment'],
+              'refactor': ['refactor', 'cleanup', 'restructure', 'optimize', 'improve']
+            };
+
+            // Additional labels for special cases
+            const specialLabels = {
+              'dependencies': ['dependency', 'dependencies', 'dependabot', 'upgrade', 'update package'],
+              'ci': ['ci', 'workflow', 'github actions', 'pipeline', 'automation'],
+              'security': ['security', 'vulnerability', 'cve', 'exploit'],
+              'breaking-change': ['breaking change', 'breaking', 'major version']
+            };
+
+            // Combine all label mappings
+            const allMappings = { ...labelMappings, ...specialLabels };
+
+            const labelsToAdd = new Set();
+
+            // Check for matching keywords
+            for (const [label, keywords] of Object.entries(allMappings)) {
+              for (const keyword of keywords) {
+                if (prContent.includes(keyword)) {
+                  labelsToAdd.add(label);
+                  break;
+                }
+              }
+            }
+
+            // Convert Set to Array
+            const labels = Array.from(labelsToAdd);
+
+            // If no labels matched, add 'needs-triage'
+            if (labels.length === 0) {
+              labels.push('needs-triage');
+            }
+
+            // Get current labels
+            const currentLabels = context.payload.pull_request.labels.map(l => l.name);
+
+            // Only add labels that don't already exist
+            const newLabels = labels.filter(l => !currentLabels.includes(l));
+
+            if (newLabels.length > 0) {
+              console.log(`Adding labels: ${newLabels.join(', ')}`);
+
+              await github.rest.issues.addLabels({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.payload.pull_request.number,
+                labels: newLabels
+              });
+            } else {
+              console.log('No new labels to add');
+            }
+
+      - name: Add size label
+        uses: actions/github-script@v7
+        with:
+          script: |
+            // Get PR diff stats
+            const pr = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: context.payload.pull_request.number
+            });
+
+            const additions = pr.data.additions;
+            const deletions = pr.data.deletions;
+            const totalChanges = additions + deletions;
+
+            let sizeLabel = '';
+
+            if (totalChanges < 10) {
+              sizeLabel = 'size/XS';
+            } else if (totalChanges < 50) {
+              sizeLabel = 'size/S';
+            } else if (totalChanges < 200) {
+              sizeLabel = 'size/M';
+            } else if (totalChanges < 500) {
+              sizeLabel = 'size/L';
+            } else {
+              sizeLabel = 'size/XL';
+            }
+
+            // Remove existing size labels
+            const currentLabels = context.payload.pull_request.labels;
+            const sizeLabelsToRemove = currentLabels
+              .filter(l => l.name.startsWith('size/'))
+              .map(l => l.name);
+
+            for (const label of sizeLabelsToRemove) {
+              await github.rest.issues.removeLabel({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.payload.pull_request.number,
+                name: label
+              }).catch(() => {
+                // Ignore errors if label doesn't exist
+              });
+            }
+
+            // Add new size label
+            console.log(`Adding size label: ${sizeLabel} (${totalChanges} changes)`);
+
+            await github.rest.issues.addLabels({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.payload.pull_request.number,
+              labels: [sizeLabel]
+            });