Extract PassDashboard Playwright e2e suite into standalone repo

Copies the Playwright end-to-end suite out of the PassDashboard app repo so
it can be run and deployed independently. Nothing was removed from the app
repo - this is a copy.

Carried over verbatim: tests/ (10 spec files, 4 helper modules, README) plus
playwright.config.ts and .env.test.example. The suite drives the deployed app
over HTTP and imports nothing from src/, which is what makes it standalone.

New for this repo:
- package.json with only the deps the suite actually uses (@playwright/test,
  allure-playwright, xlsx, typescript, @types/node) and the e2e scripts.
- tsconfig.json covering tests/ - the app repo's tsconfig.app.json only
  included src/, so these files were never typechecked before.
- .gitea/workflows/e2e-tests.yml for Gitea Actions. The app repo derived ENV
  from github.ref_name; that doesn't apply here since this repo has no
  per-environment branches, so the target is an explicit workflow_dispatch
  input and scheduled/push runs default to develop. Reports are uploaded as
  artifacts rather than deleted.
- .gitignore and README covering local setup and the required CI secrets.

The Jest unit tests under src/__tests__/ were deliberately left in the app
repo: they import application source directly (AuthContext, ProtectedRoute,
cryptoUtils, api) and cannot run without it.

Verified: npx tsc --noEmit is clean and playwright collects all 43 tests
across all 10 spec files.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

package.json

@@ -0,0 +1,24 @@
+{
+  "name": "frontend-automation",
+  "private": true,
+  "version": "1.0.0",
+  "description": "Playwright end-to-end test suite for the PassDashboard merchant portal",
+  "type": "module",
+  "scripts": {
+    "test:e2e": "playwright test",
+    "test:e2e:dev": "ENV=develop playwright test",
+    "test:e2e:staging": "ENV=staging playwright test",
+    "test:e2e:prod": "ENV=production playwright test",
+    "test:e2e:ui": "playwright test --ui",
+    "typecheck": "tsc --noEmit",
+    "report": "playwright show-report",
+    "install:browsers": "playwright install --with-deps chromium"
+  },
+  "devDependencies": {
+    "@playwright/test": "^1.44.0",
+    "@types/node": "^20.14.0",
+    "allure-playwright": "^3.10.0",
+    "typescript": "^5.5.3",
+    "xlsx": "^0.18.5"
+  }
+}