test: add cookie-without-secure fixture (CWE-614)

[ezequiellich44-cmd]

Adds a Python test case for CWE-614 (cookie without Secure flag) with fully hardened safe counterparts. Catalog regenerated; corpus safety checks pass.

[ezequiellich44-cmd]

All checks green (5/5). Ready for merge. Same verified pattern as #182 which just merged. Remaining in queue after this one: none

[ezequiellich44-cmd]

All checks green (5/5). Ready for merge. Same verified pattern as #182 which just merged. Remaining in queue after this one: #193

[ezequiellich44-cmd]

All checks green (5/5). Ready for merge. Same verified pattern as #182 which just merged. Queue: #183, #184, #185, #186, #187, #188, #190, #192, #193, #195

[ezequiellich44-cmd]

All checks green (5/5). Ready for merge. Same verified pattern as #182 which just merged. Remaining in queue after this one: #196, #195, #193, #192

[ezequiellich44-cmd]

All checks green (5/5). Ready for merge. Same verified pattern as #182 which just merged. Remaining in queue after this one: #196, #195, #193, #192

[ezequiellich44-cmd]

All checks green (5/5). Ready for merge. Same verified pattern as #182 which just merged. Remaining in queue after this one: #196, #195, #193, #192

[ezequiellich44-cmd]

All checks green (5/5). Ready for merge. Same verified pattern as #182 which just merged. Queue: #183, #184, #185, #186, #187, #188, #190, #192, #193, #195

[ezequiellich44-cmd]

All checks green (5/5). Ready for merge. Same verified pattern as #182 which just merged. Queue: #183, #184, #185, #186, #187, #188, #190, #192, #193, #195