fix(ci): prevent consent test duplication across main and consent projects

Main projects now explicitly exclude consent tests with testIgnore, while
consent-specific projects run only consent tests with testMatch. This prevents
the 14 consent tests from running twice (once in main, once in consent projects).

Before:
- Main projects: 129 tests (including 14 consent)
- Consent projects: 14 tests
- Total: 143 tests per browser (14 duplicates)

After:
- Main projects: 115 tests (excluding consent)
- Consent projects: 14 tests
- Total: 129 tests per browser (no duplicates)

Note: Current codebase has 129 tests vs baseline's 118 (+11) due to:
- Added waitlist.spec.ts (+10)
- Added tests in homepage-mode-detection (+1) and purchase-flow (+2)
- Removed _debug/chunk-loading-probe.spec.ts (-2)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: mirqtio

playwright.config.ci.ts

@@ -21,11 +21,13 @@ export default defineConfig({
     timeout: 15_000, // 15s for production build hydration (increased from 8s)
   },
   // CI tests all 5 browsers via matrix strategy
+  // Main projects exclude consent tests (which run separately in consent-* projects)
   // Regular tests use storageState to bypass consent modal (fixes 80% timeout issue)
   // Consent tests run without storageState to actually test the consent modal
   projects: [
     {
       name: 'chromium-desktop',
+      testIgnore: /.*consent.*\.spec\.ts$/, // Consent tests run in consent-chromium-desktop
       use: {
         ...devices['Desktop Chrome'],
         viewport: { width: 1920, height: 1080 },
@@ -43,6 +45,7 @@ export default defineConfig({
     },
     {
       name: 'firefox-desktop',
+      testIgnore: /.*consent.*\.spec\.ts$/, // Consent tests run in consent-firefox-desktop
       use: {
         ...devices['Desktop Firefox'],
         viewport: { width: 1920, height: 1080 },
@@ -62,6 +65,7 @@ export default defineConfig({
     },
     {
       name: 'webkit-desktop',
+      testIgnore: /.*consent.*\.spec\.ts$/, // Consent tests run in consent-webkit-desktop
       use: {
         ...devices['Desktop Safari'],
         viewport: { width: 1920, height: 1080 },
@@ -81,6 +85,7 @@ export default defineConfig({
     },
     {
       name: 'chromium-mobile',
+      testIgnore: /.*consent.*\.spec\.ts$/, // Consent tests run in consent-chromium-mobile
       use: {
         ...devices['Pixel 7'],
         storageState: 'e2e/storage/consent-accepted.json',
@@ -96,6 +101,7 @@ export default defineConfig({
     },
     {
       name: 'webkit-mobile',
+      testIgnore: /.*consent.*\.spec\.ts$/, // Consent tests run in consent-webkit-mobile
       use: {
         ...devices['iPhone 14'],
         actionTimeout: 20_000, // Extra time for WebKit