fix: preserve system warp destination after zooming out

[Guffawaffle]

Fixes primary-action warp after selecting a system and zooming out until its popup disappears. Previously, the dismissed context could submit an invalid destination and leave the ship showing WARPING 00m 00s without moving.

For hidden galaxy popups, recover the destination from the selected fleet's matching planned course and submit its explicit position and node ID. Native navigation still handles eligibility, confirmations, cooldown and responses.

Recovery is limited to an unused ordinary system-warp plan whose fleet, origin, path and selected position agree. Invalid or stale data rejects the action. Special travel continues through its normal popup flow.

Uses the shared IL2CPP runtime invocation boundary already in dev through merged #292 when reading resolved virtual getters. Enum widths, value identity, and navigation signature checks remain feature-specific.

The existing class-lookup guards are also in dev through merged #292.

[Guffawaffle]

This fails if you switch ships after zooming out. You'll still be the 00m:00s result and it never leaves destination. Converting to draft until I can address that additional repro.