feat(server): Migrating to SWC, ESM and vitest

[ben-ryder]

An attempt to migrate to SWC and vitest (with ESM). Current issues:

• Nest.js dosn't support ESM so might be a dead end in general anyway
• vitest is much slower (2x) than jest, possibly due to transfomation/processing before tests?
• test and build commands seem to work ok, but start command fails. Possibly because Nest.js doesn't support ESM, so project is configured as ESM but then compiled code is CJS with base .js extension so fails.

Test speed

vitest (~17 seconds):

 Test Files  24 passed | 1 skipped (25)
      Tests  202 passed | 3 todo (205)
   Start at  17:13:19
   Duration  16.92s (transform 219ms, setup 0ms, collect 9.02s, tests 6.40s, environment 1ms, prepare 43ms)

jest (~8 seconds):

Test Suites: 25 passed, 25 total
Tests:       3 todo, 202 passed, 205 total
Snapshots:   0 total
Time:        7.275 s, estimated 9 s

Start issues with ESM

file:///Users/ben/Development/General/headbase/packages/server/dist/main.js:2
Object.defineProperty(exports, "__esModule", {
                      ^

ReferenceError: exports is not defined in ES module scope
This file is being treated as an ES module because it has a '.js' file extension and '.....headbase/packages/server/package.json' contains "type": "module". To treat it as a CommonJS script, rename it to use the '.cjs' file extension.

[netlify]

❌ Deploy Preview for headbase-app failed.

Name	Link
🔨 Latest commit	b04b437
🔍 Latest deploy log	https://app.netlify.com/projects/headbase-app/deploys/691f4da0d72e070008936a12