ci(deps): add workflow_dispatch to Dependabot auto-merge (github-script)

Author: CoderDeltaLAN

.github/workflows/dependabot-auto-merge.yml

@@ -0,0 +1,57 @@
+name: Auto-merge Dependabot when green
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, labeled]
+  check_suite:
+    types: [completed]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  enable-automerge:
+    name: enable-automerge
+    # Solo si el PR es de dependabot o si el actor es dependabot
+    if: >
+      (github.event.pull_request.user.login == 'dependabot[bot]') ||
+      (github.actor == 'dependabot[bot]')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Find PR for this context (fallback when dispatched)
+        id: find_pr
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const {owner, repo} = context.repo;
+            // Si viene de PR, úsalo
+            if (context.payload.pull_request) {
+              return { number: context.payload.pull_request.number };
+            }
+            // Si viene de check_suite/completed o dispatch, intenta localizar PR abierto
+            const head = (context.ref || '').replace('refs/heads/','');
+            const { data: prs } = await github.rest.pulls.list({ owner, repo, state: 'open', head: `${owner}:${head}` });
+            const pr = prs.find(p => p.user.login === 'dependabot[bot]');
+            return pr ? { number: pr.number } : {};
+      - name: Enable auto-merge (squash) if checks are green
+        if: steps.find_pr.outputs.result != ''
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const {owner, repo} = context.repo;
+            const prNumber = JSON.parse(core.getInput('result'))?.number || core.getInput('result')?.number || null;
+            if (!prNumber) {
+              core.info('No PR found for this ref; exiting.');
+              return;
+            }
+            // Obtén el PR para su node_id (GraphQL requiere ID)
+            const { data: pr } = await github.rest.pulls.get({ owner, repo, pull_number: prNumber });
+            // Habilita auto-merge por GraphQL (método squash)
+            const mutation = `
+              mutation($pr:ID!){
+                enablePullRequestAutoMerge(input:{pullRequestId:$pr, mergeMethod:SQUASH}) { clientMutationId }
+              }`;
+            await github.graphql(mutation, { pr: pr.node_id });
+            core.info(`Auto-merge enabled on PR #${prNumber}`);