Fix throwable weapons not working

[AndyBodnar]

Summary

• Removes the DrawWeapon event trigger for throwable weapons and snowball
• The draw animation system was blocking firing controls, preventing throws

Root Cause

The qb-weapons:client:DrawWeapon event triggers an animation system in weapdraw.lua that:

1. Sets canFire = false
2. Calls CeaseFire() which runs a loop calling DisablePlayerFiring()
3. This blocks the player's ability to throw until the animation completes

For throwables (single-use, instant-equip items), this draw animation is unnecessary and causes the "not thrown" bug.

Test plan

• Give yourself weapon_bzgas and verify you can throw it immediately
• Test other throwables: grenade, molotov, stickybomb, pipebomb, smokegrenade, flare, proxmine, ball
• Test snowball works correctly
• Verify regular weapons still have their draw animations

References

Fixes qbcore-framework/qb-inventory#638

[AndyBodnar]

Testing

Tested with LuaGround (QBCore testing framework): https://github.com/AndyBodnar/LuaGround

Test file: qb_weapons_throwable_test.lua

Results: All 7 tests passed ✅

=== Throwable Weapons Fix (#638) ===
  ✓ should identify all throwable weapons correctly
  ✓ FIXED: throwables should NOT trigger DrawWeapon event
  ✓ FIXED: throwables should still call weapon natives correctly
  ✓ BROKEN (old behavior): throwables triggered DrawWeapon which blocked throwing
  ✓ regular weapons should still trigger DrawWeapon event
  ✓ snowball should also skip DrawWeapon and get 10 ammo
  ✓ should properly toggle off throwable when used again

Passed: 7
Failed: 0

[Storm-Trouper-NWO]

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