feat: ship end-to-end interior design MVP

services/api/app/domain/workflow.py

@@ -2,8 +2,11 @@ from copy import deepcopy
 from datetime import UTC, datetime
 
 from app.domain.models import (
+    CameraView,
     CommandRequest,
+    DesignBrief,
     ProjectSnapshot,
+    RoomProfile,
     WorkflowCommand,
     WorkflowDefinition,
     WorkflowStage,
@@ -91,13 +94,51 @@ def apply_command(project: ProjectSnapshot, request: CommandRequest) -> ProjectS
         updated.plan.ceiling_height_mm = int(
             request.payload.get("ceiling_height_mm", updated.plan.ceiling_height_mm)
         )
+        if request.payload.get("gross_area_sqm") is not None:
+            updated.plan.gross_area_sqm = float(request.payload["gross_area_sqm"])
+        if request.payload.get("room_names"):
+            existing = {room.name: room for room in updated.plan.structure.rooms}
+            updated.plan.structure.rooms = [
+                existing.get(name)
+                or RoomProfile(
+                    id=f"room-{index + 1}",
+                    name=name,
+                    kind="other",
+                    confidence=1,
+                    notes="用户确认",
+                )
+                for index, raw_name in enumerate(request.payload["room_names"])
+                if (name := str(raw_name).strip())
+            ]
+        for issue in updated.plan.issues:
+            if issue.kind in {"scale", "ocr"}:
+                issue.resolved = True
+    elif request.command == WorkflowCommand.BUILD_BLOCKOUT:
+        room_names = [room.name for room in updated.plan.structure.rooms]
+        focus = room_names[:3] or ["客餐厅", "主卧", "入口"]
+        updated.scene.cameras = [
+            CameraView(id=f"camera-{index + 1}", label=f"{room}主视角", room=room)
+            for index, room in enumerate(focus)
+        ]
     elif request.command == WorkflowCommand.SUBMIT_STYLE_BRIEF:
+        updated.brief = DesignBrief.model_validate({**updated.brief.model_dump(), **request.payload, "completed": True})
         for field in ("concept", "lighting", "forms", "density"):
             if field in request.payload:
                 setattr(updated.style, field, request.payload[field])
         for field in ("keywords", "materials", "avoid", "locked_decisions"):
             if field in request.payload:
                 setattr(updated.style, field, list(request.payload[field]))
+    elif request.command == WorkflowCommand.SELECT_DIRECTION:
+        direction_id = str(request.payload.get("direction_id", ""))
+        direction = next((item for item in updated.directions if item.id == direction_id), None)
+        if direction is None:
+            raise InvalidTransitionError(f"Direction '{direction_id}' does not exist in this project.")
+        updated.style.selected_direction_id = direction_id
+        updated.style.concept = direction.thesis
+        updated.style.keywords = direction.keywords
+        updated.style.palette = direction.palette
+        updated.style.materials = direction.materials
+        updated.style.lighting = direction.lighting
 
     updated.available_commands = available_commands(updated.stage)
     return updated