commander_vote_sta

Add a "Commander" gameplay system to the server:
Players elect their own commander through intra-team voting​ (admins can also directly appoint one).
The commander presses the V key to open a skill wheel, which allows them to use 6 tactical skills:
Recon Scan, Airdrop Supply, Tactical Smoke Wall, Artillery Support, All-Out Assault, Strategic Retreat.
Skills have level requirements​ and skill point costs. Levels and points are stored in the scoreboard, making it easy to integrate with minigame plugins.
All values, text, sounds, particles, and loot content are defined in a single JSON configuration file.
Every field comes with Chinese comments. Changes take effect via in-game hot reload​ — no server restart needed.
The required team system uses the vanilla /team command to create scoreboard teams (e.g., red, blue). The mod does not introduce a separate team system.