fix go/blog: replace broken submodule with Hugo module

go/blog/.gitignore

@@ -0,0 +1 @@
+dist

go/blog/function_test.go

@@ -3,16 +3,17 @@ package function
 import (
 	"net/http"
 	"net/http/httptest"
+	"strings"
 	"testing"
 )
 
-// TestHandle ensures that Handle executes without error and returns the
-// HTTP 200 status code indicating no errors.
+// TestHandle verifies that the blog is built and served correctly.
+// Requires 'make' to be run first to generate the dist/ directory.
 func TestHandle(t *testing.T) {
 	var (
 		f   = New()
 		w   = httptest.NewRecorder()
-		req = httptest.NewRequest("GET", "http://example.com/test", nil)
+		req = httptest.NewRequest("GET", "http://example.com/", nil)
 		res *http.Response
 	)
 	f.Handle(w, req)
@@ -22,4 +23,9 @@ func TestHandle(t *testing.T) {
 	if res.StatusCode != 200 {
 		t.Fatalf("unexpected response code: %v", res.StatusCode)
 	}
+
+	body := w.Body.String()
+	if !strings.Contains(body, "Functions Go Blog") {
+		t.Fatalf("response body does not contain blog title, got: %s", body[:200])
+	}
 }

go/blog/hugo/go.mod

@@ -0,0 +1,5 @@
+module github.com/functions-dev/templates/go/blog/hugo
+
+go 1.25.7
+
+require github.com/gauron99/hugo-theme-minimal-dark v0.0.0-20260324081819-be0e014f9cdb // indirect

go/blog/hugo/go.sum

@@ -0,0 +1,2 @@
+github.com/gauron99/hugo-theme-minimal-dark v0.0.0-20260324081819-be0e014f9cdb h1:I6iAx1Q8C7gn7NerxqxM/Xea4ZFTk43orUVOmt87x1Q=
+github.com/gauron99/hugo-theme-minimal-dark v0.0.0-20260324081819-be0e014f9cdb/go.mod h1:87aJ7j4j88ej45sl/8GRgeozGBS4PvKx6d7hcAK78N0=

go/blog/hugo/hugo.toml

@@ -1,9 +1,12 @@
 title = "Functions Go Blog"
-theme = "not-much"
 languageCode = "en-us"
 baseURL = "https://example.org/"
 copyright = "Sample custom notice © {year}"
 
+[module]
+  [[module.imports]]
+    path = "github.com/gauron99/hugo-theme-minimal-dark"
+
 [markup]
   [markup.highlight]
     style = 'dracula'