Consolidate Build & Test CI (#32929)

* Consolidate Build & Test CI

* Add missing workflow dependency

* Fix artifact name clash

* Fix playwright config

* Fix playwright_ew job

* Fix ed tests

* Fix playwright tags

* Iterate

* Fix file reads

* Fix sample-files paths

* Fix PW_TAG

* Fix blob report paths

* Delint

* Fix build-and-test.yaml

* Iterate

* Fix consentHomeserver.ts

* Simplify

* Iterate

* Delint

* Iterate

* Iterate

* Iterate

* Specify shell

* Simplify

* Delete apps/web/playwright/sample-files/index.ts

* Discard changes to apps/web/playwright/sample-files/index.ts

* Exclude playwright-common from coverage gate

* Attempt to speed up arm64 desktop test

* Revert "Attempt to speed up arm64 desktop test"

This reverts commit 8fa8ff0c785da6dad05bda938c8af24fa6af0451.

* Iterate

* Fix cache key

* Accept python or python3 as per node-gyp

* Accept python or python3 as per node-gypd

* Exclude apps/desktop/hak from coverage gate

playwright-merge.config.ts

@@ -0,0 +1,20 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
+import { defineConfig } from "@playwright/test";
+
+export default defineConfig({
+    // Playwright only supports merging using a single testDir, specifying web here
+    // means that some parts of the report for Desktop will be incorrect, but this is minor.
+    // https://github.com/microsoft/playwright/issues/39855
+    testDir: "apps/web/playwright/e2e",
+    reporter: [
+        ["html", { open: "never" }],
+        ["./packages/playwright-common/flaky-reporter.ts"],
+        ["@element-hq/element-web-playwright-common/lib/stale-screenshot-reporter.js"],
+    ],
+});