build(build): add Linux arm64, macOS amd64/arm64 to release CI

- Add build steps for linux/arm64, darwin/amd64, darwin/arm64
- Rename Windows output to glint-<tag>-windows-amd64.exe (consistent
  with Taskfile and INSTALL.md)
- Add -X main.version=<tag> to all ldflags (was missing, causing
  release binaries to report "dev" as version)
- Use $TAG variable in upload loop instead of repeating the expression

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/release.yml

@@ -32,18 +32,53 @@ jobs:
           GOARCH: amd64
           CGO_ENABLED: "0"
         run: |
-          go build -trimpath -ldflags="-s -w" \
+          go build -trimpath \
+            -ldflags="-s -w -X main.version=${{ github.ref_name }}" \
             -o glint-${{ github.ref_name }}-linux-amd64 \
             ./cmd/glint/...
 
+      - name: Build Linux (arm64)
+        env:
+          GOOS: linux
+          GOARCH: arm64
+          CGO_ENABLED: "0"
+        run: |
+          go build -trimpath \
+            -ldflags="-s -w -X main.version=${{ github.ref_name }}" \
+            -o glint-${{ github.ref_name }}-linux-arm64 \
+            ./cmd/glint/...
+
+      - name: Build macOS (amd64)
+        env:
+          GOOS: darwin
+          GOARCH: amd64
+          CGO_ENABLED: "0"
+        run: |
+          go build -trimpath \
+            -ldflags="-s -w -X main.version=${{ github.ref_name }}" \
+            -o glint-${{ github.ref_name }}-darwin-amd64 \
+            ./cmd/glint/...
+
+      - name: Build macOS (arm64)
+        env:
+          GOOS: darwin
+          GOARCH: arm64
+          CGO_ENABLED: "0"
+        run: |
+          go build -trimpath \
+            -ldflags="-s -w -X main.version=${{ github.ref_name }}" \
+            -o glint-${{ github.ref_name }}-darwin-arm64 \
+            ./cmd/glint/...
+
       - name: Build Windows (amd64)
         env:
           GOOS: windows
           GOARCH: amd64
           CGO_ENABLED: "0"
         run: |
-          go build -trimpath -ldflags="-s -w" \
-            -o glint-${{ github.ref_name }}.exe \
+          go build -trimpath \
+            -ldflags="-s -w -X main.version=${{ github.ref_name }}" \
+            -o glint-${{ github.ref_name }}-windows-amd64.exe \
             ./cmd/glint/...
 
       - name: Create release and upload assets
@@ -60,7 +95,12 @@ jobs:
             -d "{\"tag_name\":\"$TAG\",\"name\":\"$TAG\",\"draft\":false,\"prerelease\":false}" \
             | jq -r .id)
 
-          for file in glint-${{ github.ref_name }}-linux-amd64 glint-${{ github.ref_name }}.exe; do
+          for file in \
+            glint-${TAG}-linux-amd64 \
+            glint-${TAG}-linux-arm64 \
+            glint-${TAG}-darwin-amd64 \
+            glint-${TAG}-darwin-arm64 \
+            glint-${TAG}-windows-amd64.exe; do
             curl -sf -X POST \
               -H "Authorization: token $TOKEN" \
               -H "Content-Type: application/octet-stream" \