feat(ci): add GoReleaser and release workflow for multi-platform binaries

.github/workflows/release.yml

@@ -0,0 +1,33 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.25'
+          cache: true
+
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          distribution: goreleaser
+          version: latest
+          args: release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -1,4 +1,5 @@
 bin/
+dist/
 .env
 config.yaml
 main

.goreleaser.yaml

@@ -0,0 +1,41 @@
+# .goreleaser.yaml
+version: 2
+
+before:
+  hooks:
+    - go mod tidy
+
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+    goarch:
+      - amd64
+      - arm64
+    main: ./cmd/server/main.go
+    binary: fastmail
+
+archives:
+  - format: tar.gz
+    # use zip for windows archives
+    format_overrides:
+      - goos: windows
+        format: zip
+    name_template: >-
+      {{ .ProjectName }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}
+
+checksum:
+  name_template: 'checksums.txt'
+
+snapshot:
+  name_template: "{{ incpatch .Version }}-next"
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^test:'