Add MVP inventory UI toggle

AGRARIAN_DEVELOPMENT_ROADMAP.md

@@ -799,7 +799,7 @@ Target deliverable: A small group can join a server, spawn into one biome, gathe
 - [x] Add join server screen. Added a native `JoinServer` frontend screen showing the selected character and `play.agrariangame.com:7777`, with keyboard flow from character selection and a dev command to display the screen directly.
 - [x] Add loading screen. Added a native `Loading` frontend screen with Ground Zero preparation copy, selected character/server context, a deterministic placeholder progress bar, and join-screen keyboard flow into loading.
 - [x] Add HUD. Completed the MVP HUD pass with a separate `bShowMvpHudFrame` top status frame showing Ground Zero context, alive/dead state, health, food, water, and body temperature, while keeping the deeper developer overlay separately toggleable.
-- [ ] Add inventory UI.
+- [x] Add inventory UI. Promoted the existing compact replicated-inventory HUD panel into the 0.1.N UI pass with `AgrarianToggleInventoryUI`, keeping the MVP inventory surface lightweight while full drag/drop inventory remains later work.
 - [ ] Add crafting UI.
 - [ ] Add interaction prompts.
 - [ ] Add death/respawn UI.

Scripts/verify_mvp_inventory_ui_toggle.py

@@ -0,0 +1,55 @@
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+FILES = {
+    "AgrarianDebugHUD.h": ROOT / "Source" / "AgrarianGame" / "AgrarianDebugHUD.h",
+    "AgrarianDebugHUD.cpp": ROOT / "Source" / "AgrarianGame" / "AgrarianDebugHUD.cpp",
+    "AgrarianGamePlayerController.h": ROOT / "Source" / "AgrarianGame" / "AgrarianGamePlayerController.h",
+    "AgrarianGamePlayerController.cpp": ROOT / "Source" / "AgrarianGame" / "AgrarianGamePlayerController.cpp",
+    "AGRARIAN_DEVELOPMENT_ROADMAP.md": ROOT / "AGRARIAN_DEVELOPMENT_ROADMAP.md",
+}
+
+EXPECTED = {
+    "AgrarianDebugHUD.h": [
+        "bShowInventoryHUD",
+        "DrawInventoryPanel",
+    ],
+    "AgrarianDebugHUD.cpp": [
+        "DrawInventoryPanel(AgrarianCharacter)",
+        "INVENTORY  %d/%d slots  %.1f wt",
+        "InventoryComponent->GetTotalWeight()",
+    ],
+    "AgrarianGamePlayerController.h": [
+        "AgrarianToggleInventoryUI",
+    ],
+    "AgrarianGamePlayerController.cpp": [
+        "#include \"AgrarianDebugHUD.h\"",
+        "AgrarianToggleInventoryUI",
+        "bShowInventoryHUD = !AgrarianHUD->bShowInventoryHUD",
+        "MVP inventory UI shown.",
+        "MVP inventory UI hidden.",
+    ],
+    "AGRARIAN_DEVELOPMENT_ROADMAP.md": [
+        "[x] Add inventory UI.",
+        "`AgrarianToggleInventoryUI`",
+    ],
+}
+
+
+def main():
+    missing = []
+    for label, path in FILES.items():
+        text = path.read_text(encoding="utf-8")
+        for snippet in EXPECTED[label]:
+            if snippet not in text:
+                missing.append(f"{label}: {snippet}")
+
+    if missing:
+        raise RuntimeError("MVP inventory UI toggle verification failed: " + "; ".join(missing))
+
+    print("Agrarian MVP inventory UI toggle verification complete.")
+
+
+if __name__ == "__main__":
+    main()

Source/AgrarianGame/AgrarianGamePlayerController.cpp

@@ -4,6 +4,7 @@
 #include "AgrarianGamePlayerController.h"
 #include "AgrarianCampfire.h"
 #include "AgrarianCraftingComponent.h"
+#include "AgrarianDebugHUD.h"
 #include "AgrarianGameCharacter.h"
 #include "AgrarianInventoryComponent.h"
 #include "AgrarianItemPickup.h"
@@ -280,6 +281,19 @@ void AAgrarianGamePlayerController::AgrarianCraftStatus()
 	}
 }
 
+void AAgrarianGamePlayerController::AgrarianToggleInventoryUI()
+{
+	AAgrarianDebugHUD* AgrarianHUD = GetHUD<AAgrarianDebugHUD>();
+	if (!AgrarianHUD)
+	{
+		ClientMessage(TEXT("No Agrarian HUD is active."));
+		return;
+	}
+
+	AgrarianHUD->bShowInventoryHUD = !AgrarianHUD->bShowInventoryHUD;
+	ClientMessage(AgrarianHUD->bShowInventoryHUD ? TEXT("MVP inventory UI shown.") : TEXT("MVP inventory UI hidden."));
+}
+
 void AAgrarianGamePlayerController::AgrarianSelectCharacter(FName Archetype)
 {
 	if (!MvpFrontendWidget)

Source/AgrarianGame/AgrarianGamePlayerController.h

@@ -91,6 +91,9 @@ public:
 	UFUNCTION(Exec)
 	void AgrarianCraftStatus();
 
+	UFUNCTION(Exec)
+	void AgrarianToggleInventoryUI();
+
 	UFUNCTION(Exec)
 	void AgrarianSelectCharacter(FName Archetype);