Add craft shelter QA gate

AGRARIAN_DEVELOPMENT_ROADMAP.md

@@ -859,7 +859,7 @@ Target deliverable: A small group can join a server, spawn into one biome, gathe
 - [x] Can connect two clients. Added a two-client connection QA gate and Windows helper that checks the packaged client, launches two client instances against the same `play.agrariangame.com:7777` or LAN endpoint, and ties the manual observation steps to the multiplayer latency smoke plan.
 - [x] Can gather resources. Added a resource gathering QA gate tied to Ground Zero wood/fiber nodes, server-authoritative resource interaction, replicated harvest depletion, inventory grants, resource persistence coverage, and the natural shelter playable-loop smoke test.
 - [x] Can craft a fire. Added a craft-fire QA gate tied to `DA_Recipe_Campfire`, the player recipe setup, `BP_Campfire`, replicated campfire lit/fuel state, fire interaction prompts, campfire persistence, and fire-risk QA coverage.
-- [ ] Can craft a shelter.
+- [x] Can craft a shelter. Added a craft-shelter QA gate tied to primitive frame/wall/roof/shelter recipes, native build placement, `BP_PrimitiveShelter`, shelter persistence/protection hooks, and the natural shelter playable-loop smoke test.
 - [ ] Can survive one full day/night cycle.
 - [ ] Can die from survival pressure.
 - [ ] Can reconnect and retain state.

Docs/QA/MvpQaGates.md

@@ -91,6 +91,23 @@ Required evidence:
 This gate is gameplay/server-relevant and should be covered by the next server
 package deployment.
 
+## Craft Shelter
+
+The craft-shelter gate proves the MVP can build a primitive shelter path from
+resources through recipes and world placement.
+
+Required evidence:
+
+- Primitive frame, wall panel, roof panel, and shelter recipes exist.
+- `BP_PrimitiveShelter` derives from the native shelter actor.
+- Building placement consumes active buildable cost on the server.
+- Shelter actors persist through the world-actor persistence path.
+- `Scripts/verify_playable_loop_smoke.py` runs the natural shelter loop using
+  wood, fiber, wildlife, shelter-piece recipes, and the primitive shelter class.
+
+This gate is gameplay/server-relevant and should be covered by the next server
+package deployment.
+
 ## Craft Fire
 
 The craft-fire gate proves the MVP can produce or use a campfire through the

Scripts/verify_craft_shelter_qa_gate.py

@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+"""Verify the MVP craft-shelter QA gate is covered."""
+
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+ROADMAP = ROOT / "AGRARIAN_DEVELOPMENT_ROADMAP.md"
+QA_DOC = ROOT / "Docs" / "QA" / "MvpQaGates.md"
+SMOKE = ROOT / "Scripts" / "verify_playable_loop_smoke.py"
+BUILD_CPP = ROOT / "Source" / "AgrarianGame" / "AgrarianBuildingPlacementComponent.cpp"
+SHELTER_CPP = ROOT / "Source" / "AgrarianGame" / "AgrarianShelterActor.cpp"
+SHELTER_H = ROOT / "Source" / "AgrarianGame" / "AgrarianShelterActor.h"
+BLUEPRINT_SETUP = ROOT / "Scripts" / "setup_playable_blueprints.py"
+PERSISTENCE_VERIFY = ROOT / "Scripts" / "verify_shelter_weather_protection.py"
+
+REQUIRED = {
+    QA_DOC: [
+        "## Craft Shelter",
+        "Primitive frame, wall panel, roof panel, and shelter recipes",
+        "BP_PrimitiveShelter",
+        "verify_playable_loop_smoke.py",
+    ],
+    SMOKE: [
+        "DA_Recipe_PrimitiveShelter",
+        "DA_Recipe_PrimitiveFrame",
+        "DA_Recipe_PrimitiveWallPanel",
+        "DA_Recipe_PrimitiveRoofPanel",
+        "run_natural_shelter_loop_smoke_test",
+    ],
+    BUILD_CPP: [
+        "ServerPlaceBuildable_Implementation",
+        "PlacementCost",
+        "SpawnActor",
+    ],
+    SHELTER_H: [
+        "class AAgrarianShelterActor",
+    ],
+    SHELTER_CPP: [
+        "PersistentActorComponent->ActorTypeId = TEXT(\"primitive_shelter\")",
+        "ProtectionVolume->SetBoxExtent",
+    ],
+    BLUEPRINT_SETUP: [
+        "BP_PrimitiveShelter",
+        "unreal.AgrarianShelterActor",
+    ],
+    PERSISTENCE_VERIFY: [
+        "shelter",
+        "weather protection",
+    ],
+    ROADMAP: [
+        "[x] Can craft a shelter.",
+    ],
+}
+
+
+def main() -> None:
+    missing: list[str] = []
+    for path, snippets in REQUIRED.items():
+        text = path.read_text(encoding="utf-8")
+        for snippet in snippets:
+            if snippet not in text:
+                missing.append(f"{path.relative_to(ROOT)} missing {snippet!r}")
+    if missing:
+        raise SystemExit("FAILED: " + "; ".join(missing))
+    print("OK: craft-shelter QA gate is covered by recipes, placement, and smoke-test hooks.")
+
+
+if __name__ == "__main__":
+    main()