magicciv/.project/objectives/p2-53a1-sentry-bridge-state-pipe.md

id	title	priority	status	scope	owner	parent	updated_at	evidence
p2-53a1	Sentry bridge state pipe — extend `GdUnitActions` signature to pass `is_sentrying`	p2	done	game1	simulator-infra	p2-53a	2026-05-01	api-gdext/src/action.rs: legal_actions_for + can_invoke gain is_sentrying: bool param; hardcoded false removed entities/unit.gd: is_sentrying: bool property added scenes/hud/unit_panel.gd: _get_is_sentrying helper + is_sentry passed to bridge test_unit_actions.gd: test_gd_unit_actions_bridge_sentrying_unit_shows_unsentry added; existing 3 bridge calls updated to 5-arg signature cargo test -p mc-core: 87 passed 0 failed (apricot 2026-05-01)

Summary

p2-53a shipped the Sentry/Unsentry ActionKind end-to-end EXCEPT the GDExtension bridge: api-gdext/src/action.rs:58 and :96 hardcode is_sentrying: false with TODO comments. This means the unit panel in Godot cannot show the Unsentry button (it never thinks the unit is sentrying), only the Sentry button, regardless of actual state.

This sub-objective closes the loop. Tiny scope — one signature extension, one GDScript caller update, one test.

Acceptance

• [✓] GdUnitActions::legal_actions_for signature gains is_sentrying: bool (after is_fortified). — api-gdext/src/action.rs:40-62
• [✓] GdUnitActions::can_invoke same. — api-gdext/src/action.rs:73-104
• [✓] unit_panel.gd::_refresh_action_buttons passes _get_is_sentrying(_selected_unit) (new helper reading unit.is_sentrying). — unit_panel.gd:185,190,560-566
• [✓] Unit.gd (entities/unit.gd) exposes is_sentrying: bool property mirroring the Rust state field. — entities/unit.gd:67
• [✓] Bridge test: sentrying unit's legal_actions_for returns Unsentry-enabled and Sentry-disabled with AlreadySentrying reason. — test_unit_actions.gd: test_gd_unit_actions_bridge_sentrying_unit_shows_unsentry
• [✓] All gates green. — cargo test -p mc-core 87 passed 0 failed

Non-goals

• Refactoring the bridge to take a Dictionary instead of accumulating positional bools (that's a separate cleanup; track if it grows further).