feat: complete house plan maker application

Full-featured house/apartment floor plan editor with:

- Turborepo monorepo (React/Vite client, Fastify/Prisma server, shared Zod schemas)
- 2D room editor with walls, doors, windows, furniture, electrical elements
- 3D room preview with Three.js (auto-hide nearest walls, bird's eye default)
- Wall projection views with interactive drag (elevation, position)
- Apartment floor plan view with room positioning
- Copy/paste, alignment tools, measurement tool, annotations
- Item-attached annotations with leader lines (visible on projections)
- Door open direction (LEFT/RIGHT/INWARD/OUTWARD) with swing arc
- Floor type textures (wood, tile, concrete, laminate, herringbone)
- Wall color picker for 3D view
- Furniture: bed, desk, wardrobe, sofa, table, chair, shelf, nightstand, dresser, bookcase, TV (with stand toggle), AC unit
- Furniture elevation support (wall-mounted items)
- Auto-save with dirty state tracking, batch save API
- Rotation-aware collision detection (SAT/OBB) with 3D elevation check
- Rotation-aware hit testing
- i18n (English/Russian) with locale-aware number formatting
- Dark mode with system preference detection
- Undo/redo, keyboard shortcuts, scale bar
- PDF/PNG/JSON export and JSON import
- Focus trap modal, toast notifications, tooltips
- Responsive layout with overlay palettes

packages/shared/src/schemas/room.schema.ts

@@ -0,0 +1,42 @@
+import { z } from 'zod';
+import { FLOOR_TYPES } from '../types/room.js';
+
+const floorTypeEnum = z.enum(FLOOR_TYPES);
+
+const pointSchema = z.object({
+  x: z.number(),
+  y: z.number(),
+});
+
+export const createRoomSchema = z.object({
+  name: z.string().min(1, 'Name is required').max(255),
+  shape: z.array(pointSchema).optional(),
+  width: z.number().positive('Width must be positive').nullish(),
+  height: z.number().positive('Height must be positive').nullish(),
+  wallHeight: z.number().positive('Wall height must be positive').optional(),
+  plinthHeight: z.number().min(0, 'Plinth height must be non-negative').optional(),
+  plinthThickness: z.number().min(0, 'Plinth thickness must be non-negative').optional(),
+  order: z.number().int().min(0).optional(),
+  posX: z.number().optional(),
+  posY: z.number().optional(),
+  floorType: floorTypeEnum.optional(),
+  wallColor: z.string().max(20).optional(),
+});
+
+export const updateRoomSchema = z.object({
+  name: z.string().min(1, 'Name is required').max(255).optional(),
+  shape: z.array(pointSchema).optional(),
+  width: z.number().positive('Width must be positive').nullish(),
+  height: z.number().positive('Height must be positive').nullish(),
+  wallHeight: z.number().positive('Wall height must be positive').optional(),
+  plinthHeight: z.number().min(0, 'Plinth height must be non-negative').optional(),
+  plinthThickness: z.number().min(0, 'Plinth thickness must be non-negative').optional(),
+  order: z.number().int().min(0).optional(),
+  posX: z.number().optional(),
+  posY: z.number().optional(),
+  floorType: floorTypeEnum.optional(),
+  wallColor: z.string().max(20).optional(),
+});
+
+export type CreateRoomInput = z.infer<typeof createRoomSchema>;
+export type UpdateRoomInput = z.infer<typeof updateRoomSchema>;