revert: Sentry #20064 + @sentry 10.27 (prod bisect) (#20221)

## Summary

Reverts **#20064** (`feat(sentry): propagate workspace context to all
spans`) and downgrades **@sentry** packages from **10.51** back to
**10.27** (reversing **#20149**), to validate in production whether
recent Sentry/instrumentation changes correlate with OTLP/metrics
issues.

## Changes

1. **Revert #20064** — removes `beforeSendSpan` from `instrument.ts`,
restores `WorkspaceAuthContextMiddleware` / `BullMQDriver` behavior, and
deletes the three `apply-workspace-sentry-*` utils added in that PR.
2. **Sentry versions** — `packages/twenty-server` (`@sentry/nestjs`,
`@sentry/node`, `@sentry/profiling-node`) and `packages/twenty-front`
(`@sentry/react`) set to `^10.27.0`; `yarn.lock` regenerated via `yarn
install`.

---------

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/twenty-server/src/engine/core-modules/auth/middlewares/workspace-auth-context.middleware.ts

@@ -13,7 +13,6 @@ import { buildApiKeyAuthContext } from 'src/engine/core-modules/auth/utils/build
 import { buildApplicationAuthContext } from 'src/engine/core-modules/auth/utils/build-application-auth-context.util';
 import { buildPendingActivationUserAuthContext } from 'src/engine/core-modules/auth/utils/build-pending-activation-user-auth-context.util';
 import { buildUserAuthContext } from 'src/engine/core-modules/auth/utils/build-user-auth-context.util';
-import { applyWorkspaceSentryContext } from 'src/engine/core-modules/sentry/utils/apply-workspace-sentry-context.util';
 
 @Injectable()
 export class WorkspaceAuthContextMiddleware implements NestMiddleware {
@@ -26,8 +25,6 @@ export class WorkspaceAuthContextMiddleware implements NestMiddleware {
 
     const authContext = this.buildAuthContext(req);
 
-    applyWorkspaceSentryContext(authContext);
-
     withWorkspaceAuthContext(authContext, () => {
       next();
     });