Forge success label and real progress bar tied to server compile stages.

Replace Dispensed with Forged in the reveal modal, poll builder/progress with indeterminate-until-first-byte UX, and emit interpolated compile progress during long garble builds.

server/web/src/components/Forge/ForgeProgressBar.test.tsx

@@ -0,0 +1,48 @@
+/**
+ * @vitest-environment happy-dom
+ */
+import { describe, expect, it } from 'vitest';
+import { cleanup, render, screen } from '@testing-library/react';
+import ForgeProgressBar, {
+  FORGE_INITIAL_STAGE,
+  isForgeProgressIndeterminate,
+} from './ForgeProgressBar';
+
+describe('isForgeProgressIndeterminate', () => {
+  it('is indeterminate before server reports progress', () => {
+    expect(isForgeProgressIndeterminate(FORGE_INITIAL_STAGE, 0)).toBe(true);
+    expect(isForgeProgressIndeterminate('', 0)).toBe(true);
+  });
+
+  it('is determinate once server reports pct or stage advances', () => {
+    expect(isForgeProgressIndeterminate('Compiling agent', 20)).toBe(false);
+    expect(isForgeProgressIndeterminate(FORGE_INITIAL_STAGE, 5)).toBe(false);
+  });
+});
+
+describe('ForgeProgressBar', () => {
+  it('renders nothing when not building', () => {
+    const { container } = render(
+      <ForgeProgressBar building={false} stage="" progress={0} />,
+    );
+    expect(container.firstChild).toBeNull();
+  });
+
+  it('shows indeterminate track before server progress', () => {
+    const { container } = render(
+      <ForgeProgressBar building stage={FORGE_INITIAL_STAGE} progress={0} />,
+    );
+    expect(screen.getByText('…')).toBeInTheDocument();
+    expect(container.querySelector('.forge-progress-track.indeterminate')).toBeTruthy();
+    cleanup();
+  });
+
+  it('shows server stage and pct when progress is reported', () => {
+    const { container } = render(
+      <ForgeProgressBar building stage="Compiling agent" progress={42} />,
+    );
+    expect(screen.getByText('Compiling agent')).toBeInTheDocument();
+    expect(screen.getByText('42%')).toBeInTheDocument();
+    expect(container.querySelector('.forge-progress-track.indeterminate')).toBeNull();
+  });
+});