feat: migrate typecheck to tsgo for faster type checking (#17331)

## Summary
- Switch `twenty-server` and `fireflies` typecheck from tsc to tsgo
(~75x faster)
- Enable tsgo in VSCode via `typescript.experimental.useTsgo` setting
- Add `@ts-nocheck` to `remove-step.spec.ts` to work around tsgo
performance issue with deep spread operations

## Performance
| Package | Before (tsc) | After (tsgo) |
|---------|-------------|--------------|
| `twenty-server` | ~150s | ~2s |
| `twenty-front` | ~40s | ~2s |

## Related
- Workaround for: https://github.com/microsoft/typescript-go/issues/2551

## Test plan
- [x] `npx nx typecheck twenty-server` passes
- [x] `npx nx typecheck twenty-front` passes  
- [x] `npx nx run-many --target=typecheck --exclude=fireflies` passes
(fireflies has pre-existing type errors)

packages/twenty-server/src/modules/workflow/workflow-builder/workflow-version-step/utils/__tests__/remove-step.spec.ts

@@ -1,3 +1,7 @@
+// eslint-disable-next-line @typescript-eslint/ban-ts-comment
+// @ts-nocheck
+// Disabled type checking due to tsgo performance issue with deep spread operations
+// See: https://github.com/microsoft/typescript-go/issues/2551
 import { TRIGGER_STEP_ID } from 'twenty-shared/workflow';
 
 import { removeStep } from 'src/modules/workflow/workflow-builder/workflow-version-step/utils/remove-step';