diff --git a/craft/src/main.tsx b/craft/src/main.tsx
index e0da316..330e3e8 100644
--- a/craft/src/main.tsx
+++ b/craft/src/main.tsx
@@ -10,11 +10,15 @@ import './styles/editor.css';
 // captured too.
 installConsoleErrorBuffer();
 
-// Logged so the build that produced a given session is visible in the
-// browser console; also the only current reference to `editorBuild()`,
-// which keeps the __EDITOR_BUILD__-reading module from being tree-shaken
-// out of the bundle before Task 19 wires it into the report payload.
-console.log(`[site-builder] build ${editorBuild()}`);
+// Exposed on window (not logged -- no need to print this on every load for
+// every customer) so support can ask someone to type __WHP_EDITOR_BUILD__
+// in the console on request. This call is also load-bearing for bundling:
+// it is currently the only reference to `editorBuild()`, which keeps the
+// __EDITOR_BUILD__-reading module from being tree-shaken out of the bundle
+// before Task 19 wires it into the report payload. Do not remove this line
+// as a "stray global" cleanup -- doing so silently reverts every future
+// bug report to showing 'dev' instead of a real build stamp.
+(window as any).__WHP_EDITOR_BUILD__ = editorBuild();
 
 // Read WHP_CONFIG injected by PHP wrapper (or null for standalone dev)
 const whpConfig: WhpConfig | null = (window as any).WHP_CONFIG || null;
diff --git a/craft/src/utils/build-stamp.test.ts b/craft/src/utils/build-stamp.test.ts
new file mode 100644
index 0000000..52395fe
--- /dev/null
+++ b/craft/src/utils/build-stamp.test.ts
@@ -0,0 +1,8 @@
+import { describe, it, expect } from 'vitest';
+import { editorBuild } from './build-stamp';
+
+describe('editorBuild', () => {
+  it("returns 'dev' when __EDITOR_BUILD__ is undefined (vitest does not apply Vite's define)", () => {
+    expect(editorBuild()).toBe('dev');
+  });
+});
diff --git a/craft/vite.config.ts b/craft/vite.config.ts
index de42c20..f5b1a34 100644
--- a/craft/vite.config.ts
+++ b/craft/vite.config.ts
@@ -9,7 +9,10 @@ import { execSync } from 'child_process'
 const editorBuild = (() => {
   let sha = 'nogit'
   try {
-    sha = execSync('git rev-parse --short HEAD', { cwd: __dirname }).toString().trim()
+    sha = execSync('git rev-parse --short HEAD', {
+      cwd: __dirname,
+      stdio: ['ignore', 'pipe', 'ignore'],
+    }).toString().trim()
   } catch {
     // Building outside a git checkout (release tarball) -- keep 'nogit'.
   }