ci: add Gitea Actions workflow for make check

.gitea/workflows/check.yml

@@ -1,9 +1,22 @@
 name: check
-on: [push]
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
 jobs:
     check:
         runs-on: ubuntu-latest
         steps:
             # actions/checkout v4.2.2, 2026-02-22
             - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
-            - run: docker build .
+
+            - uses: actions/setup-go@v5
+              with:
+                go-version-file: go.mod
+
+            - name: Install golangci-lint
+              run: go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.10.1
+
+            - name: Run make check
+              run: make check