Cleanup test infra

[robz]

move e2e and unit tests into app, update readme, fix lockfile so CI should work now, update dev db

testplan

unit and e2e tests pass, also verify page loads locally:

app % npm run test:e2e

> app@0.0.1 test:e2e
> playwright test

[WebServer] [baseline-browser-mapping] The data in this module is over two months old.  To ensure accurate Baseline data, please update: `npm i baseline-browser-mapping@latest -D`

Running 7 tests using 3 workers

  ✓  1 [chromium] › tests/e2e/images.spec.js:112:1 › required fallback class images exist (2ms)
  ✓  2 [chromium] › tests/e2e/images.spec.js:118:1 › new class image filenames do not look like generated duplicate variants (21ms)
  ✓  3 [chromium] › tests/e2e/class-list.spec.js:27:2 › class list page › renders correctly (6.7s)
[WebServer] Browserslist: browsers data (caniuse-lite) is 8 months old. Please run:
[WebServer]   npx update-browserslist-db@latest
[WebServer]   Why you should do it regularly: https://github.com/browserslist/update-db#readme
  ✓  4 [chromium] › tests/e2e/class-list.spec.js:78:2 › class list page › search works (5.9s)
  ✓  5 [chromium] › tests/e2e/class-list.spec.js:108:2 › class list page › sort works (5.5s)
  ✓  6 [chromium] › tests/e2e/class-list.spec.js:136:2 › class list page › filters work (5.8s)
  ✓  7 [chromium] › tests/e2e/class-list.spec.js:163:2 › class list page › navigation works (6.5s)

  7 passed (31.8s)
app % npm test        

> app@0.0.1 test
> vitest --run

[baseline-browser-mapping] The data in this module is over two months old.  To ensure accurate Baseline data, please update: `npm i baseline-browser-mapping@latest -D`

 RUN  v2.1.9 asmbly-classes/app

stdout | src/routes/newsletter-signup/page.server.test.js > POST /newsletter-signup > successfully signs up newsletter subscriber
POST { valid: true, data: { email: 'test@example.com' } }

stdout | src/routes/newsletter-signup/page.server.test.js > POST /newsletter-signup > sends correct authorization header with API key
POST { valid: true, data: { email: 'test@example.com' } }

stdout | src/routes/newsletter-signup/page.server.test.js > POST /newsletter-signup > handles different email formats
POST { valid: true, data: { email: 'user@example.com' } }
POST { valid: true, data: { email: 'user+tag@example.com' } }
POST { valid: true, data: { email: 'user.name@subdomain.example.com' } }

stdout | src/routes/api/class-cancellation/server.test.js > POST /api/class-cancellation > decrements attendee count on cancellation
Event registration canceled with status CANCELED: Event ID: 123 - Neon ID: 456
Decrementing seat count for Test Class on Mar 1, 2026, 4:00 AM

stdout | src/routes/api/class-cancellation/server.test.js > POST /api/class-cancellation > does not decrement if user already canceled
Event registration canceled with status CANCELED: Event ID: 123 - Neon ID: 456
Registrant (Neon ID: 456) has already cancelled. Will not decrement.

stdout | src/routes/api/class-cancellation/server.test.js > POST /api/class-cancellation > sends notification emails to waitlist when seat opens
Event registration canceled with status CANCELED: Event ID: 123 - Neon ID: 456
Decrementing seat count for Advanced Woodworking on Mar 15, 2026, 9:00 AM
Sending waitlist seat opening email to waitlist1@example.com for Advanced Woodworking on Sun, Mar 15, 2026
Sending waitlist seat opening email to waitlist2@example.com for Advanced Woodworking on Sun, Mar 15, 2026

stdout | src/routes/api/class-cancellation/server.test.js > POST /api/class-cancellation > handles refunded status same as canceled
Event registration canceled with status REFUNDED: Event ID: 123 - Neon ID: 456
Decrementing seat count for Test Class on Mar 1, 2026, 4:00 AM

stdout | src/routes/api/class-cancellation/server.test.js > POST /api/class-cancellation > continues even if some emails fail
Event registration canceled with status CANCELED: Event ID: 123 - Neon ID: 456
Decrementing seat count for Test Class on Mar 15, 2026, 9:00 AM
Sending waitlist seat opening email to good@example.com for Test Class on Sun, Mar 15, 2026
Sending waitlist seat opening email to bad@example.com for Test Class on Sun, Mar 15, 2026

stderr | src/routes/api/class-cancellation/server.test.js > POST /api/class-cancellation > continues even if some emails fail
Error sending email: Error: Email failed

stdout | src/routes/api/class-registration/server.test.js > POST /api/class-registration > increments attendee count on successful registration
Event Registration: Event ID: 123 - Neon ID: 456
Incremented attendee count for Test Class on Mar 1, 2026, 4:00 AM

stdout | src/routes/api/class-registration/server.test.js > POST /api/class-registration > fulfills request when registrant is on the waitlist
Event Registration: Event ID: 123 - Neon ID: 456
Incremented attendee count for Test Class on Mar 1, 2026, 4:00 AM

stdout | src/routes/api/class-registration/server.test.js > POST /api/class-registration > does not fulfill request when registrant email does not match
Event Registration: Event ID: 123 - Neon ID: 456
Incremented attendee count for Test Class on Mar 1, 2026, 4:00 AM

 ✓ src/index.test.js (1)
 ✓ src/routes/newsletter-signup/page.server.test.js (5)
 ✓ src/lib/models/neonEventInstance.test.js (27)
 ✓ src/lib/models/neonEventType.test.js (28)
 ✓ src/lib/server/auth.test.js (21)
 ✓ src/lib/helpers/neonHelpers.test.js (15)
 ✓ src/routes/api/class-cancellation/server.test.js (8)
 ✓ src/routes/api/class-registration/server.test.js (6)
 ✓ src/routes/(data-pages)/event/[eventTypeId]/page.server.test.js (16)

 Test Files  9 passed (9)
      Tests  127 passed (127)
   Start at  12:00:55
   Duration  326ms (transform 225ms, setup 0ms, collect 563ms, tests 195ms, environment 1ms, prepare 379ms)

app % cd ../dev
dev % ./load-dev-db.sh
==> Removing existing container...
==> Starting Postgres...
==> Waiting for Postgres to be ready...
==> Loading dev database...
==> Installing dependencies...

up to date, audited 369 packages in 2s

85 packages are looking for funding
  run `npm fund` for details

23 vulnerabilities (1 low, 11 moderate, 9 high, 2 critical)

To address issues that do not require attention, run:
  npm audit fix

To address all issues (including breaking changes), run:
  npm audit fix --force

Run `npm audit` for details.
==> Starting dev server at http://localhost:5173...

> app@0.0.1 dev
> vite dev

[baseline-browser-mapping] The data in this module is over two months old.  To ensure accurate Baseline data, please update: `npm i baseline-browser-mapping@latest -D`

  VITE v5.4.21  ready in 281 ms

  ➜  Local:   http://localhost:5173/
  ➜  Network: use --host to expose
  ➜  press h + enter to show help