feat(webui): signal the development UI-issue button through a meta tag

README.md

@@ -229,6 +229,8 @@ changes the config rolls the pod.
 
 The MCP endpoint is off in the chart too. `mcp.enabled` and `mcp.publicURL` turn it on; the chart refuses to render it with `authBypass`. See [`docs/mcp.md`](docs/mcp.md#with-the-helm-chart).
 
+Setting `CRYPTOS_DEV_UI_ISSUE_COPY=true` adds a `<meta name="cryptos-dev-ui-issue-copy" content="true">` tag to the served index page, which lets a development console build show its "Copy for UI issue" button. Off by default; a release console build has no such button regardless of this setting.
+
 ## 🔌 MCP endpoint
 
 The manager can serve a [Model Context Protocol](https://modelcontextprotocol.io) endpoint at `/mcp` for AI agents. It is off by default.

cmd/manager/main.go

@@ -231,7 +231,11 @@ func main() {
 		connect.WithInterceptors(apperr.Interceptor()),
 	)
 
-	web, err := webui.Handler()
+	devUIIssueCopy := os.Getenv("CRYPTOS_DEV_UI_ISSUE_COPY") == "true"
+	if devUIIssueCopy {
+		log.Printf("manager: CRYPTOS_DEV_UI_ISSUE_COPY is set, so the console's dev UI-issue button is enabled")
+	}
+	web, err := webui.Handler(webui.Options{DevUIIssueCopy: devUIIssueCopy})
 	if err != nil {
 		log.Fatalf("manager: webui: %v", err)
 	}

internal/webui/embed.go

@@ -17,6 +17,7 @@ limitations under the License.
 */
 
 import (
+	"bytes"
 	"embed"
 	"io/fs"
 	"net/http"
@@ -25,9 +26,19 @@ import (
 //go:embed all:dist
 var distFS embed.FS
 
+// Options tunes the web bundle handler.
+type Options struct {
+	// DevUIIssueCopy adds the meta tag that lets a development console build
+	// show its "Copy for UI issue" button. Release builds don't contain the
+	// button, so the tag does nothing there.
+	DevUIIssueCopy bool
+}
+
+const devUIIssueMeta = `<meta name="cryptos-dev-ui-issue-copy" content="true">`
+
 // Handler serves the embedded web bundle. Requests that don't map to a file
 // fall back to index.html so the client-side router can handle the route.
-func Handler() (http.Handler, error) {
+func Handler(opts Options) (http.Handler, error) {
 	sub, err := fs.Sub(distFS, "dist")
 	if err != nil {
 		return nil, err
@@ -37,6 +48,9 @@ func Handler() (http.Handler, error) {
 	if err != nil {
 		return nil, err
 	}
+	if opts.DevUIIssueCopy {
+		index = bytes.Replace(index, []byte("</head>"), []byte(devUIIssueMeta+"</head>"), 1)
+	}
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		if r.URL.Path == "/" {
 			serveIndex(w, index)

internal/webui/embed_test.go

@@ -24,7 +24,7 @@ import (
 )
 
 func TestHandler_ServesIndex(t *testing.T) {
-	h, err := Handler()
+	h, err := Handler(Options{})
 	if err != nil {
 		t.Fatalf("Handler: %v", err)
 	}
@@ -36,10 +36,28 @@ func TestHandler_ServesIndex(t *testing.T) {
 }
 
 func TestHandler_SPAFallback(t *testing.T) {
-	h, _ := Handler()
+	h, _ := Handler(Options{})
 	rec := httptest.NewRecorder()
 	h.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/fleet", nil)) // no such file
 	if rec.Code != http.StatusOK || !strings.Contains(rec.Body.String(), "CryptOS Fleet Manager") {
 		t.Fatalf("GET /fleet (SPA) = %d, want index.html", rec.Code)
 	}
 }
+
+func TestHandlerInjectsDevUIIssueMetaOnlyWhenEnabled(t *testing.T) {
+	for _, tc := range []struct {
+		on   bool
+		want bool
+	}{{false, false}, {true, true}} {
+		h, err := Handler(Options{DevUIIssueCopy: tc.on})
+		if err != nil {
+			t.Fatal(err)
+		}
+		rec := httptest.NewRecorder()
+		h.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/fleet", nil))
+		got := strings.Contains(rec.Body.String(), `<meta name="cryptos-dev-ui-issue-copy" content="true">`)
+		if got != tc.want {
+			t.Fatalf("on=%v: meta present=%v, want %v", tc.on, got, tc.want)
+		}
+	}
+}