WitherSkullCannon 1.2.2 startup-tag repair

Original /function paths and seven /trigger names retained. Native suitcase
processing and an inventory menu replace the dialog dependency. The tick tag
now only enables the seven trigger objectives using vanilla scoreboard commands.
The generated pack installer replaces the old tick tag and removes obsolete dialogs.
Attack patterns and rod behavior unchanged. Orbital plugin files untouched.

INSTALL: Stop server. Replace previous WitherSkullCannon JAR (do not keep both).
Delete only the generated <main-world>/datapacks/WitherSkullCannon-commands
folder once before startup, so stale resources cannot load ahead of the plugin.
Restart; plugin regenerates its command bridge. Do not delete other datapacks.

Verification: 12751 offline assertions; Bukkit binary API references passed for
1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2,
26.2 and 26.3. These are API compatibility checks, not live server tests.
The preceding function-parser error was not provided; unrelated errors may remain.
