feat(e2e): consolidate E2E infra + add waitForSidebar (PRI-698) (#42)

* feat(e2e): consolidate E2E test infrastructure + add waitForSidebar (PRI-698)

- Adds e2e/auth.setup.ts, e2e/tns-csi.spec.ts with waitForSidebar helper
- Adds playwright.config.ts, scripts/deploy-e2e-headlamp.sh, scripts/teardown-e2e-headlamp.sh
- Adds .github/workflows/e2e.yaml
- Plugin settings test waits for list before searching

* fix(e2e): add @playwright/test to devDependencies and e2e script (PRI-698)

@playwright/test was missing from devDependencies, causing the
'Install Playwright browsers' step to fail. Added it alongside
the e2e npm script so the reusable workflow can run playwright test.

* fix(e2e): reference @main workflow after .github merge

Co-Authored-By: Paperclip <noreply@paperclip.ing>

---------

Co-authored-by: Chris Farhood <chris@farhood.org>
Co-authored-by: Paperclip <noreply@paperclip.ing>

pnpm-lock.yaml

@@ -17,6 +17,9 @@ importers:
       '@mui/material':
         specifier: ^5.15.14
         version: 5.18.0(@emotion/react@11.14.0(@types/react@18.3.28)(react@18.3.1))(@emotion/styled@11.14.1(@emotion/react@11.14.0(@types/react@18.3.28)(react@18.3.1))(@types/react@18.3.28)(react@18.3.1))(@types/react@18.3.28)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
+      '@playwright/test':
+        specifier: ^1.59.1
+        version: 1.59.1
       '@testing-library/jest-dom':
         specifier: ^6.4.8
         version: 6.9.1
@@ -988,6 +991,11 @@ packages:
     resolution: {integrity: sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==}
     engines: {node: '>=14'}
 
+  '@playwright/test@1.59.1':
+    resolution: {integrity: sha512-PG6q63nQg5c9rIi4/Z5lR5IVF7yU5MqmKaPOe0HSc0O2cX1fPi96sUQu5j7eo4gKCkB2AnNGoWt7y4/Xx3Kcqg==}
+    engines: {node: '>=18'}
+    hasBin: true
+
   '@popperjs/core@2.11.8':
     resolution: {integrity: sha512-P1st0aksCrn9sGZhp8GMYwBnQsbvAWsZAX44oXNNvLHGqAOcoVxmjZiohstwQ7SqKnbR47akdNi+uleWD8+g6A==}
 
@@ -3049,6 +3057,11 @@ packages:
   fs.realpath@1.0.0:
     resolution: {integrity: sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==}
 
+  fsevents@2.3.2:
+    resolution: {integrity: sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==}
+    engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
+    os: [darwin]
+
   fsevents@2.3.3:
     resolution: {integrity: sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==}
     engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
@@ -4185,6 +4198,16 @@ packages:
     resolution: {integrity: sha512-NPE8TDbzl/3YQYY7CSS228s3g2ollTFnc+Qi3tqmqJp9Vg2ovUpixcJEo2HJScN2Ez+kEaal6y70c0ehqJBJeA==}
     engines: {node: '>=10'}
 
+  playwright-core@1.59.1:
+    resolution: {integrity: sha512-HBV/RJg81z5BiiZ9yPzIiClYV/QMsDCKUyogwH9p3MCP6IYjUFu/MActgYAvK0oWyV9NlwM3GLBjADyWgydVyg==}
+    engines: {node: '>=18'}
+    hasBin: true
+
+  playwright@1.59.1:
+    resolution: {integrity: sha512-C8oWjPR3F81yljW9o5OxcWzfh6avkVwDD2VYdwIGqTkl+OGFISgypqzfu7dOe4QNLL2aqcWBmI3PMtLIK233lw==}
+    engines: {node: '>=18'}
+    hasBin: true
+
   possible-typed-array-names@1.1.0:
     resolution: {integrity: sha512-/+5VFTchJDoVj3bhoqi6UeymcD00DAwb1nJwamzPvHEszJ4FpF6SNNbUbOS8yI56qHzdV8eK0qEfOSiodkTdxg==}
     engines: {node: '>= 0.4'}
@@ -6522,6 +6545,10 @@ snapshots:
   '@pkgjs/parseargs@0.11.0':
     optional: true
 
+  '@playwright/test@1.59.1':
+    dependencies:
+      playwright: 1.59.1
+
   '@popperjs/core@2.11.8': {}
 
   '@reduxjs/toolkit@2.11.2(react-redux@9.2.0(@types/react@18.3.28)(react@18.3.1)(redux@5.0.1))(react@18.3.1)':
@@ -9033,6 +9060,9 @@ snapshots:
 
   fs.realpath@1.0.0: {}
 
+  fsevents@2.3.2:
+    optional: true
+
   fsevents@2.3.3:
     optional: true
 
@@ -10413,6 +10443,14 @@ snapshots:
     dependencies:
       find-up: 5.0.0
 
+  playwright-core@1.59.1: {}
+
+  playwright@1.59.1:
+    dependencies:
+      playwright-core: 1.59.1
+    optionalDependencies:
+      fsevents: 2.3.2
+
   possible-typed-array-names@1.1.0: {}
 
   postcss-modules-extract-imports@3.1.0(postcss@8.5.14):