fix/chore: leaderboard and results page

feat: improve result download

minor fixes

refactor: auth

code refactors

HF proxy

SSRF proxy fixes

actions: e2e fix

refactor: calculator and question card jsx

perf: result page optimize

minor security fixes

add: tests

bug fix

fix: test redirect

fix: user not able to view tests

code split: api/routes/tests

vulture: remove dead code

code split: admin.py

code refactors

performance optimize: N+1 ....

add: new tests

.

5 -> 50 MB for json files

Security Fix: Prevent DoS by adding size limits and chunked upload handling

fix: CORS wildcard usage

fix: harden token user

security

perf: optimal sorting

fix: actions 4

perf: N+1 del cleanup

add: tests and code cleanup

actions-3

fix: actions-2

fix: github actionss

add: CI/CD | fix: adminusers

fix: github actions e2e

fix: session-expired on login

fix: security vulnerabilities

refactor code

del checklist and add more admin controls

PDF service deprecated

backend/ code refactor

frontend and DB code refactor

add: tests

supabase optmization

fix: github actions

fix: actions, fonts and test attempt

feat: Add alembic migrations and database foreign key indexes

refactor

refactor/perf: light/dark mode + add tests + optimize