test(e2e): migrate /api/analytics route mocks to the regex pattern

Playwright's literal `**/api/analytics` string glob does not match
the sliced URL form `/api/analytics?slice=summaries` the v1.4.39.2
dashboard split fires alongside the thick request. The slim request
fell through to the real route on every authenticated spec, and
because the seeded e2e user carries no measurements, the real slim
slice returned empty summaries — exactly the case the v1.4.39.3
production merge fix already guards against, but the regex form is
the durable alignment with the v1.4.37 W-CI lesson that already
swept `onboarding-flicker.spec.ts` and `mobile-viewport.spec.ts`.

Ten specs migrate: dashboard, chart-overlay-controls,
measurement-flow, charts-mobile, a11y, v1427-responsive-sheet,
v1427-coach-launch, v1427-measurements-add-param,
v1427-insights-empty-state, onboarding-tour-passthrough. Every spec
now uses `/\/api\/analytics(\?|$)/` so the slim AND thick slice URLs
intercept under one route handler.

e2e/a11y.spec.ts

@@ -70,7 +70,11 @@ test.describe("axe-core authenticated surfaces", () => {
   // need fully-painted DOM, and a flaky API would otherwise stall the
   // analyse() call until the 30s test timeout.
   test.beforeEach(async ({ page }) => {
-    await page.route("**/api/analytics", (route) =>
+    // v1.4.39.3 — match `/api/analytics` AND any sliced variant
+    // (`?slice=summaries`); the v1.4.39.2 dashboard split fires both
+    // in parallel and the literal string glob misses the query-
+    // string form.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",

e2e/chart-overlay-controls.spec.ts

@@ -21,7 +21,13 @@ test.describe("chart overlay controls", () => {
   test.beforeEach(async ({ page }) => {
     // Mock analytics + measurements so the dashboard paints at least
     // one chart card. Same seed shape the dashboard.spec.ts uses.
-    await page.route("**/api/analytics", (route) =>
+    //
+    // v1.4.39.3 — match `/api/analytics` AND any sliced variant
+    // (`?slice=summaries`). See the comment on dashboard.spec.ts for
+    // the underlying minimatch-vs-query-string gap; the regex form
+    // catches both the thick and slim slice URLs the dashboard now
+    // mounts in parallel.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",

e2e/charts-mobile.spec.ts

@@ -33,7 +33,13 @@ test.describe("charts — mobile-viewport regression", () => {
 
     // Mock analytics + measurements so the chart wrappers all clear
     // their data-floor gates. Same pattern as `dashboard.spec.ts`.
-    await page.route("**/api/analytics", (route) =>
+    //
+    // v1.4.39.3 — match `/api/analytics` AND any sliced variant
+    // (`?slice=summaries`). The v1.4.39.2 dashboard split mounts the
+    // slim slice in parallel; the literal `**/api/analytics` glob
+    // misses the query-string form and dropped the request through to
+    // the real route, blanking the tile strip + chart cards.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",

e2e/dashboard.spec.ts

@@ -23,7 +23,18 @@ test.describe("authenticated dashboard render", () => {
     // Mock analytics with a populated weight summary so the weight tile
     // and chart render. `count` must be >0 for the tile to clear the
     // data-floor gate in `src/app/page.tsx`.
-    await page.route("**/api/analytics", (route) =>
+    //
+    // v1.4.39.3 — match `/api/analytics` AND any sliced variant
+    // (`?slice=summaries`). The v1.4.39.2 dashboard split mounts two
+    // parallel `useAnalyticsQuery` calls; the slim variant carries a
+    // `?slice=summaries` query string that the literal string glob
+    // `**/api/analytics` (Playwright minimatch) refuses to match,
+    // dropping the request to the real route. The seeded test user has
+    // no measurements so the real route returns empty summaries, and
+    // the dashboard's slim-first merge then blanked the tile strip.
+    // The same trap bit `onboarding-flicker` and `mobile-viewport` in
+    // v1.4.37 W-CI; the regex form is the durable fix.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",

e2e/measurement-flow.spec.ts

@@ -74,7 +74,14 @@ test.describe("add measurement flow", () => {
 
     // Dashboard's analytics fetch — empty summaries are fine; we only
     // need the page to render so we can click "Add".
-    await page.route("**/api/analytics", (route) =>
+    //
+    // v1.4.39.3 — match `/api/analytics` AND any sliced variant
+    // (`?slice=summaries`). The v1.4.39.2 dashboard split fires both
+    // requests in parallel; the previous string glob missed the slim
+    // variant which then fell through to the real route and slowed
+    // the page paint enough that the post-mutation list query never
+    // surfaced inside the 10 s window.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",

e2e/onboarding-tour-passthrough.spec.ts

@@ -69,7 +69,9 @@ test.describe("v1.4.33 F2 — onboarding tour passes clicks through to the page"
       }),
     );
 
-    await page.route("**/api/analytics", (route) =>
+    // v1.4.39.3 — regex form matches the slim slice the v1.4.39.2
+    // dashboard split fires alongside the thick request.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",

e2e/v1427-coach-launch.spec.ts

@@ -31,7 +31,9 @@ test.describe("v1.4.27 — Coach reachability on insights sub-pages", () => {
     // Populated analytics so each sub-page paints the data branch
     // (`hasMetricData` true) — the Coach button is mounted at the
     // bottom of the data tree.
-    await page.route("**/api/analytics", (route) =>
+    // v1.4.39.3 — regex form matches the slim slice the v1.4.39.2
+    // dashboard split fires alongside the thick request.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",

e2e/v1427-insights-empty-state.spec.ts

@@ -24,7 +24,9 @@ test.describe("v1.4.27 — insights empty-state with metric gating", () => {
   test.beforeEach(async ({ page }) => {
     // Zero-count summaries — every gated sub-page short-circuits to
     // its EmptyState branch.
-    await page.route("**/api/analytics", (route) =>
+    // v1.4.39.3 — regex form matches the slim slice the v1.4.39.2
+    // dashboard split fires alongside the thick request.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",

e2e/v1427-measurements-add-param.spec.ts

@@ -25,7 +25,9 @@ test.describe("v1.4.27 — /measurements?add= consumer", () => {
   test.use({ storageState: STORAGE_STATE_PATH });
 
   test.beforeEach(async ({ page }) => {
-    await page.route("**/api/analytics", (route) =>
+    // v1.4.39.3 — regex form matches the slim slice the v1.4.39.2
+    // dashboard split fires alongside the thick request.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",

e2e/v1427-responsive-sheet.spec.ts

@@ -22,7 +22,9 @@ test.describe("v1.4.27 — ResponsiveSheet branch", () => {
 
   test.beforeEach(async ({ page }) => {
     // Empty analytics + list keeps the page fast and deterministic.
-    await page.route("**/api/analytics", (route) =>
+    // v1.4.39.3 — regex form matches `/api/analytics` AND any sliced
+    // variant (`?slice=summaries`) the v1.4.39.2 dashboard split fires.
+    await page.route(/\/api\/analytics(\?|$)/, (route) =>
       route.fulfill({
         status: 200,
         contentType: "application/json",