Fix collision UAF on paired time models

[Zephkek]

Summary

• Fix timed model collision restore desync that can leave dangling pColModel pointers and crash in CCollision::TestLineSphere at 0x4174B6.
• Stop using GTA paired propagation in this path and sync paired TIME model collision state explicitly in MTA tracking.

Motivation

• This is a long standing latent bug: after multiple model/COL replacements, reconnect is not enough and collision state can stay corrupted until full game restart.
• Blame target for the broken behavior: 34b4a61d40b39e0f21f42ccf031d37439223fa12 (Resolve remaining collisionless objects (Fixes #927) (PR #2296)), which used paired SetColModel(..., true) without mirrored MTA tracking for the paired model.
• Related but incomplete fix: c1824033c2e56db105730ed1cb0a06d7f720c042 (Fix timed-object collision crash (#4782)), which handled one path only.

Test plan

• Repro sequence with two paired TIME models and two resources replacing/restoring COL in different order no longer leaves freed pointers bound.
• Crash map/session hop flow that previously reached gta_sa.exe+0x174B6 no longer crashes in local validation run.
• Non TIME model COL replacement/restore behavior stays unchanged.

Checklist

• Your code should follow the coding guidelines.
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