Revert "fix(event): remove all any casts — typed authenticate, user.id, and Prisma error narrowing"

[ShantKhatri]

Reverts #595

Error: #22 6.556 src/routes/event.ts(129,19): error TS2741: Property 'organizerId' is missing in type '{ id: string; name: string; slug: string; description: string | null; location: string; organizerUsername: string; organizerDisplayName: string; startDate: Date; endDate: Date; createdAt: Date; attendeesCount: number; }' but required in type 'EventDetails'.
#22 ERROR: process "/bin/sh -c npm run build" did not complete successfully: exit code: 2
------
 > [builder 13/13] RUN npm run build:
0.283 
0.283 > @devcard/backend@1.0.0 build
0.283 > tsc
0.283 
Error: 6.556 src/routes/event.ts(129,19): error TS2741: Property 'organizerId' is missing in type '{ id: string; name: string; slug: string; description: string | null; location: string; organizerUsername: string; organizerDisplayName: string; startDate: Date; endDate: Date; createdAt: Date; attendeesCount: number; }' but required in type 'EventDetails'.
------
backend.Dockerfile:25
--------------------
  23 |     COPY apps/backend ./
  24 |     
  25 | >>> RUN npm run build
  26 |     
  27 |     FROM node:20-alpine AS runner
--------------------
ERROR: failed to build: failed to solve: process "/bin/sh -c npm run build" did not complete successfully: exit code: 2
Error: Process completed with exit code 1.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
dev-card	Ready	Preview, Comment	Jun 27, 2026 9:52am

[github-actions]

Hi @ShantKhatri,

Thanks for opening this pull request.

This PR has been automatically classified based on the files modified.

Applied Labels

• gssoc:approved
• backend

Primary Review Area

• backend

Reviewer

@Harxhit has been identified as the primary reviewer for this pull request.

If you have any questions regarding the affected area or implementation details, feel free to reach out to the assigned reviewer.

Thank you for your contribution!

[github-actions]

CI — All Checks Passed

Backend — PASS

Check	Result
Lint	PASS
Test	PASS
Typecheck	PASS

Mobile — SKIP

Check	Result
Lint	-
Test	-

Web — SKIP

Check	Result
Build	-

---

Last updated: Sat, 27 Jun 2026 09:53:37 GMT