build(release): build darwin with cgo on macOS so releases ship the tray (#95)

The release cross-compiled darwin with CGO_ENABLED=0, so the prebuilt
(and Homebrew) binaries had the menu bar and the sqlite backend stubbed
out — `tock tray` reported "needs a CGO-enabled build".

Run goreleaser on a macOS runner and override the darwin targets to
CGO_ENABLED=1 so fyne.io/systray (Objective-C) and go-sqlite3 are compiled
in. Linux stays CGO-free (pure-Go cross-build from the same runner).

Verified locally: goreleaser builds darwin/arm64 and darwin/amd64 with cgo
(cross-arch amd64 links fine from an arm64 host), and the resulting binary
carries the systray symbols instead of the no-cgo stub.

Author: kriuchkov

.github/workflows/release.yml

@@ -35,7 +35,9 @@ jobs:
 
   release:
     name: Release
-    runs-on: ubuntu-latest
+    # macOS runner so goreleaser can build the darwin binaries with cgo (the
+    # menu bar needs the Objective-C systray backend; sqlite needs go-sqlite3).
+    runs-on: macos-latest
     permissions:
       contents: write
     steps:

.goreleaser.yaml

@@ -20,6 +20,18 @@ builds:
       - -X github.com/kriuchkov/tock/internal/app/commands.version={{.Version}}
       - -X github.com/kriuchkov/tock/internal/app/commands.commit={{.Commit}}
       - -X github.com/kriuchkov/tock/internal/app/commands.date={{.Date}}
+    # Build darwin natively with cgo so the menu bar (fyne.io/systray is
+    # Objective-C) and the sqlite backend (go-sqlite3) are compiled in.
+    # Requires a macOS runner. Linux stays CGO-free (pure-Go cross-build).
+    overrides:
+      - goos: darwin
+        goarch: amd64
+        env:
+          - CGO_ENABLED=1
+      - goos: darwin
+        goarch: arm64
+        env:
+          - CGO_ENABLED=1
 
 archives:
   - format: tar.gz