Add patch for opencode

pkgbuilds/opencode/patches/fix-parcel-watcher.patch

@@ -0,0 +1,23 @@
+diff --git a/PKGBUILD b/PKGBUILD
+index a27b9e7..9e092f3 100644
+--- a/PKGBUILD
++++ b/PKGBUILD
+@@ -20,6 +20,18 @@ sha256sums=('SKIP')
+ build() {
+   cd "opencode-${pkgver}"
+   bun install
++
++  # Fix for bun compile not finding platform-specific @parcel/watcher
++  # The compile step needs this to be explicitly installed
++  case "${CARCH}" in
++    x86_64)
++      bun add @parcel/watcher-linux-x64-glibc --optional
++      ;;
++    aarch64)
++      bun add @parcel/watcher-linux-arm64-glibc --optional
++      ;;
++  esac
++
+   cd packages/tui
+   CGO_ENABLED=0 go build -ldflags="-s -w -X main.Version=${pkgver}" -o tui cmd/opencode/main.go
+   cd ../opencode