Add accuracy order tactics

docs/GODOT_4_6_MIGRATION.md

@@ -47,6 +47,7 @@ powershell -NoProfile -ExecutionPolicy Bypass -File tools\check_godot46_readines
 - Manual checkpoint save/load restores the expected current briefing without script errors.
 - A player unit can move, attack, wait, use a tactic, use an item, and equip compatible gear.
 - March Order and Hamper Order adjust movement range while active and expire with the normal support/debuff timing.
+- Focus Order and Feint Order adjust physical hit chance through AGI bonuses or penalties and update attack forecasts while active.
 - Poison Mist applies poison, poison ticks at the target team's phase start, and poison defeat immediately ends the battle when it satisfies a victory or defeat condition.
 - Seal Tactic applies seal, prevents the affected unit from using tactics during its next action phase, and disables the tactic button with a sealed forecast/badge.
 - Snare Tactic applies snare, prevents the affected unit from moving during its next action phase, and still leaves attacks, tactics, items, and wait available.