test: realign the AgentX frontier tests with #736

Pareto frontier from its selected axes without E2E normalized-interactivity
gating" — and shipped with "full checks intentionally skipped for this focused
change". Master has been red since: 3 unit tests and 3 e2e suites still assert
the gating, and the api-doc digest gate was left tripped. This updates the tests
to the behaviour that was chosen. No src behaviour changes.

Unit:

- overview-data: an agentic point dominated on total tokens and slower on E2E is
  no longer dropped, so the tier-50 read lands on it (8100) instead of coming
  back null.
- useThroughputData: buildGpuGroups keeps an e2e-dominated point, because
  eligibility is now decided downstream from the selected axes.
- api-route-catalog: reviewed overview-data.ts for #736 and updated its digest.
  Tier reads change value, but the Overview BFF parameters and the
  OverviewPageData shape are byte-identical — verified by diffing the exported
  surface against 08e1f7d — so no published contract moved.

E2E:

- The "Advanced" x-axis popover is gone and all four modes are flat tabs, so the
  four specs that opened it now click the tab. Agentic also defaults to
  Interactivity rather than E2E Normalized Interactivity.
- The derived-metrics stub moves to beforeEach. Cypress clears intercepts
  between tests, and these specs relied on the old default fetching during
  `before` while the stub was alive; React Query then held the result for the
  spec. Nothing fetches on load now, so a later switch into that mode issued a
  live request and rendered no chart.
- The URL-restored-mode regression test now restores TTFT. It asked for
  Interactivity, which is the new default, so it could no longer fail.
- overlay-optimal-only asserted that overlay points are hidden because
  trace-less rows cannot join the canonical frontier. They now stand or fall on
  the selected axes like any other point, and all five fixture configs are
  non-dominated there — throughput falls monotonically as interactivity rises —
  so the suite would have asserted five visible either way. It gets a sixth,
  deliberately dominated overlay config, so Optimal Only has something to drop;
  making that point non-dominated fails the test.

Verified: 3363 unit tests, 598/602 e2e locally. Two local failures are not from
this change — zh-pages passes in isolation (page-load timeout under parallel
load), and inference-replay fails on a wall-clock animation assertion, imports
nothing touched here, and passed CI on #737.

中文：#736 有意移除了端到端归一化交互性的前沿门控，并"刻意跳过完整检查"，导致 master
持续为红：3 项单测与 3 个 e2e 套件仍在断言已被移除的门控，API 文档摘要闸门也未更新。
本提交只把测试对齐到既定行为，不改动任何源码行为。单测：概览档位读数不再因总 token
被支配而丢弃该点（改为 8100）；buildGpuGroups 保留被 e2e 支配的点；复核 overview-data.ts
后更新摘要（对外参数与响应结构逐字节一致）。E2E：Advanced 弹出菜单已移除，四个模式改为
平铺标签页；派生指标 stub 移至 beforeEach（Cypress 会在测试间清除拦截）；URL 恢复模式
的回归测试改用 TTFT（原用 Interactivity 已与新默认值相同而无法失败）；overlay-optimal-only
新增一个刻意被支配的配置，否则该断言无论过滤器如何都会通过。

Author: Oseltamivir

packages/app/cypress/e2e/csv-export-overlay.cy.ts

@@ -35,9 +35,10 @@ function readCapturedCsv(): Cypress.Chainable<string> {
 describe('Inference CSV export with an unofficial-run overlay', () => {
   before(() => {
     interceptOverlayRun();
-    // The agentic default mode is E2E Normalized Interactivity (which suppresses overlays and
-    // fetches derived metrics) — stub the fetch, then switch to the
-    // Interactivity mode this suite's overlay assertions rely on.
+    // Agentic charts default to Interactivity, where the overlay renders. The
+    // derived-metrics fetch now happens only under E2E Normalized Interactivity,
+    // so the stub below is a guard against a stray request rather than a
+    // dependency of this suite.
     interceptDerivedAgenticMetrics();
     cy.visit(`/inference?unofficialrun=${OVERLAY_RUN_ID}&i_seq=agentic-traces&i_pctl=p90`, {
       onBeforeLoad(win) {
@@ -47,12 +48,11 @@ describe('Inference CSV export with an unofficial-run overlay', () => {
       },
     });
     cy.wait('@unofficialRun');
-    // Interactivity is nested under the Advanced menu on agentic charts.
-    cy.get('[data-testid="x-axis-mode-advanced"]').click();
-    cy.get('[data-testid="x-axis-mode-interactivity"]').click();
-    cy.get('[data-testid="x-axis-mode-advanced"]')
-      .should('have.attr', 'data-state', 'active')
-      .and('contain.text', 'Interactivity');
+    // Every x-axis metric is a top-level tab on agentic charts, and Interactivity
+    // is the default — clicked anyway so the suite does not depend on that.
+    cy.get('[data-testid="x-axis-mode-interactivity"]')
+      .click()
+      .should('have.attr', 'data-state', 'active');
     cy.get('[data-testid="inference-chart-display"] svg .unofficial-overlay-pt').should('exist');
   });
 

packages/app/cypress/e2e/overlay-legend-remove.cy.ts

@@ -22,9 +22,10 @@ describe('Official legend X works while an unofficial overlay is loaded', () =>
     // Use distinct hardware so the engine-comparison exclusion policy does
     // not resolve the official and unofficial rows as one competing family.
     interceptOverlayRun({ overlayHardware: 'h100' });
-    // The agentic default mode is E2E Normalized Interactivity (which suppresses overlays and
-    // fetches derived metrics) — stub the fetch, then switch to Interactivity
-    // where the overlay renders.
+    // Agentic charts default to Interactivity, where the overlay renders. The
+    // derived-metrics fetch now happens only under E2E Normalized Interactivity,
+    // so the stub below is a guard against a stray request rather than a
+    // dependency of this suite.
     interceptDerivedAgenticMetrics();
     cy.visit(`/inference?unofficialrun=${OVERLAY_RUN_ID}&i_seq=agentic-traces&i_pctl=p90`, {
       onBeforeLoad(win) {
@@ -33,16 +34,28 @@ describe('Official legend X works while an unofficial overlay is loaded', () =>
       },
     });
     cy.wait('@unofficialRun');
-    // Interactivity is nested under the Advanced menu on agentic charts.
-    cy.get('[data-testid="x-axis-mode-advanced"]').click();
-    cy.get('[data-testid="x-axis-mode-interactivity"]').click();
+    // Every x-axis metric is a top-level tab on agentic charts, and Interactivity
+    // is the default — clicked anyway so the suite does not depend on that.
+    cy.get('[data-testid="x-axis-mode-interactivity"]')
+      .click()
+      .should('have.attr', 'data-state', 'active');
     cy.get('[data-testid="chart-figure"]').should('have.length.at.least', 1);
     cy.get('[data-testid="inference-chart-display"] svg .unofficial-overlay-pt').should(
       'have.length',
       REAL_CONFIGS.length,
     );
   });
 
+  // Cypress clears intercepts between tests, so the derived-metrics stub is
+  // re-registered per test rather than once in `before`. Until #736 the
+  // agentic default was E2E Normalized Interactivity, so the fetch happened
+  // during `before` while the stub was still alive and React Query held the
+  // result for the rest of the spec. The default no longer fetches, so any
+  // later switch into that mode issues a fresh request.
+  beforeEach(() => {
+    interceptDerivedAgenticMetrics();
+  });
+
   it('shows official points and an official legend entry initially', () => {
     cy.get('[data-testid="inference-chart-display"] svg .dot-group').should(($dots) => {
       expect(countVisible($dots), 'visible official points').to.be.greaterThan(0);
@@ -69,10 +82,12 @@ describe('Official legend X works while an unofficial overlay is loaded', () =>
     cy.get('[data-testid="inference-chart-display"] svg .dot-group').should(($dots) => {
       expect(countVisible($dots), 'visible official points after remove').to.eq(0);
     });
-    // The overlay series is untouched. Optimal Only still hides its trace-less
-    // points because unofficial rows cannot join the canonical frontier.
+    // The overlay series is untouched — hiding an official SKU must not disturb
+    // it. All five overlay points stay visible under Optimal Only: they are
+    // non-dominated on the interactivity axes, and since #736 lacking persisted
+    // traces no longer excludes them from the frontier.
     cy.get('[data-testid="inference-chart-display"] svg .unofficial-overlay-pt').should(($pts) => {
-      expect(countVisible($pts), 'visible overlay X markers').to.eq(0);
+      expect(countVisible($pts), 'visible overlay X markers').to.eq(REAL_CONFIGS.length);
     });
     // Inactive row: the hover affordance flips to the "+" restore indicator
     // (explicit "clicking the name brings it back"), and the Hide X is gone.

packages/app/cypress/e2e/overlay-optimal-only.cy.ts

@@ -1,22 +1,31 @@
 /**
- * Unofficial runs do not have persisted request traces, so they cannot join
- * the canonical E2E Normalized Interactivity frontier. Optimal Only must hide
- * them on every AgentX axis; Show All remains the explicit way to inspect them.
+ * Optimal Only must filter overlay (unofficial-run) points by the same rule it
+ * applies to official ones: the Pareto frontier of the *selected* axes.
+ *
+ * Until #736 the rule was different — unofficial runs have no persisted request
+ * traces, so they could never join the canonical E2E Normalized Interactivity
+ * frontier and Optimal Only hid every one of them. That gating is gone, so an
+ * overlay point now survives exactly when it is non-dominated on the axes on
+ * screen, and Show All remains the way to inspect the rest.
  */
 import { interceptDerivedAgenticMetrics, unlockAgenticGate } from '../support/e2e';
 import {
   countVisible,
+  DOMINATED_CONFIG,
   interceptOverlayRun,
   OVERLAY_RUN_ID,
   REAL_CONFIGS,
 } from '../support/overlay-fixtures';
 
-describe('Overlay points follow canonical Optimal Only policy (agentic interactivity)', () => {
+// The five real configs are all non-dominated on the interactivity axes, so a
+// sixth, deliberately dominated point is what gives Optimal Only something to
+// remove. Without it this suite would assert the same count either way and pass
+// no matter what the filter did.
+const OVERLAY_CONFIGS = [...REAL_CONFIGS, DOMINATED_CONFIG];
+
+describe('Overlay points follow Optimal Only on the selected axes', () => {
   before(() => {
-    interceptOverlayRun();
-    // The agentic default mode is E2E Normalized Interactivity (which suppresses overlays and
-    // fetches derived metrics) — stub the fetch, then switch to the
-    // Interactivity mode this suite is about.
+    interceptOverlayRun({ overlayConfigs: OVERLAY_CONFIGS });
     interceptDerivedAgenticMetrics();
     cy.visit(`/inference?unofficialrun=${OVERLAY_RUN_ID}&i_seq=agentic-traces&i_pctl=p90`, {
       onBeforeLoad(win) {
@@ -25,46 +34,53 @@ describe('Overlay points follow canonical Optimal Only policy (agentic interacti
       },
     });
     cy.wait('@unofficialRun');
-    // Interactivity is nested under the Advanced menu on agentic charts.
-    cy.get('[data-testid="x-axis-mode-advanced"]').click();
-    cy.get('[data-testid="x-axis-mode-interactivity"]').click();
+    // Every x-axis metric is a top-level tab on agentic charts, and Interactivity
+    // is the default — clicked anyway so the suite does not depend on that.
+    cy.get('[data-testid="x-axis-mode-interactivity"]')
+      .click()
+      .should('have.attr', 'data-state', 'active');
     cy.get('[data-testid="chart-figure"]').should('have.length.at.least', 1);
-    cy.get('[data-testid="x-axis-mode-advanced"]')
-      .should('have.attr', 'data-state', 'active')
-      .and('contain.text', 'Interactivity');
+    // All six are rendered; visibility is what Optimal Only changes.
     cy.get('[data-testid="inference-chart-display"] svg .unofficial-overlay-pt').should(
       'have.length',
-      REAL_CONFIGS.length,
+      OVERLAY_CONFIGS.length,
     );
   });
 
-  it('hides trace-less overlay points in the default Optimal Only view', () => {
+  // Cypress clears intercepts between tests, so the derived-metrics stub is
+  // re-registered per test rather than once in `before`. Until #736 the agentic
+  // default was E2E Normalized Interactivity, so the fetch happened during
+  // `before` while the stub was still alive and React Query held the result for
+  // the rest of the spec. The default no longer fetches.
+  beforeEach(() => {
+    interceptDerivedAgenticMetrics();
+  });
+
+  it('drops only the dominated overlay point in the default Optimal Only view', () => {
     cy.get('#scatter-hide-non-optimal').should('have.attr', 'data-state', 'checked');
-    // The deterministic derived-metric stub puts all five official rows on the
-    // canonical frontier.
     cy.get('[data-testid="inference-chart-display"] svg .dot-group').should(($dots) => {
       expect(countVisible($dots), 'visible official points').to.eq(REAL_CONFIGS.length);
     });
-    // Overlay rows have no persisted trace ids and therefore no canonical
-    // frontier membership.
+    // Five of six survive: every real config is non-dominated on these axes, and
+    // the overlay's trace-less rows are no longer excluded for lacking traces.
     cy.get('[data-testid="inference-chart-display"] svg .unofficial-overlay-pt').should(($pts) => {
-      expect(countVisible($pts), 'visible overlay X markers').to.eq(0);
+      expect(countVisible($pts), 'visible overlay X markers').to.eq(REAL_CONFIGS.length);
     });
   });
 
   it('shows all overlay points when Optimal Only is turned off', () => {
     cy.get('#scatter-hide-non-optimal').click();
     cy.get('#scatter-hide-non-optimal').should('have.attr', 'data-state', 'unchecked');
     cy.get('[data-testid="inference-chart-display"] svg .unofficial-overlay-pt').should(($pts) => {
-      expect(countVisible($pts), 'visible overlay X markers').to.eq(REAL_CONFIGS.length);
+      expect(countVisible($pts), 'visible overlay X markers').to.eq(OVERLAY_CONFIGS.length);
     });
   });
 
-  it('re-hides trace-less overlay points when Optimal Only is re-enabled', () => {
+  it('re-drops the dominated overlay point when Optimal Only is re-enabled', () => {
     cy.get('#scatter-hide-non-optimal').click();
     cy.get('#scatter-hide-non-optimal').should('have.attr', 'data-state', 'checked');
     cy.get('[data-testid="inference-chart-display"] svg .unofficial-overlay-pt').should(($pts) => {
-      expect(countVisible($pts), 'visible overlay X markers').to.eq(0);
+      expect(countVisible($pts), 'visible overlay X markers').to.eq(REAL_CONFIGS.length);
     });
   });
 });