fix(security): harden URL handling, fix memory safety and race conditions#721

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grisutheguru wants to merge 3 commits intoTokTok:masterfrom

grisutheguru:fix/security-hardening-v2

Commits on Apr 20, 2026

fix(security): harden URL handling, fix memory safety and race conditions

grisutheguru
and
claude
committed
fix(security): remove sizeof on opaque Tox_Pass_Key type

grisutheguru
and
claude
committed
fix(security): use default-construction for QMutex in mutexMap

grisutheguru
and
claude
committed