feat: add outlet direction (horizontal/vertical), wall light styles, floor textures, and stretch ceiling

- Add configurable outlet direction (horizontal/vertical) stored in metadata
- Add wall light style variants (classic, pendant-globe, sconce-up, sconce-down)
- Add PBR floor textures including natural oak
- Add stretch ceiling offset support with DB migration
- Add furniture surface texture selection
- Add canvas theme colors utility for dark mode support
- Update projection views with improved rendering
- Add EN and RU translations for all new properties

packages/shared/src/index.ts

@@ -41,6 +41,9 @@ export type {
   VerticalAnchor,
   PositionAnchor,
   ElectricalType,
+  OutletDirection,
+  WallLightStyle,
+  FurnitureTexture,
   ElectricalItem,
   CreateElectricalItemDto,
   UpdateElectricalItemDto,
@@ -62,6 +65,10 @@ export {
   OPENING_TYPES,
   DOOR_OPEN_DIRECTIONS,
   ELECTRICAL_TYPES,
+  OUTLET_DIRECTIONS,
+  WALL_LIGHT_STYLES,
+  FURNITURE_TEXTURES,
+  TEXTURABLE_FURNITURE,
   FURNITURE_TYPES,
   HORIZONTAL_ANCHORS,
   VERTICAL_ANCHORS,

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

@@ -17,6 +17,10 @@ export const createRoomSchema = z.object({
   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(),
+  stretchCeilingOffset: z
+    .number()
+    .min(0, 'Stretch ceiling offset must be non-negative')
+    .optional(),
   order: z.number().int().min(0).optional(),
   posX: z.number().optional(),
   posY: z.number().optional(),
@@ -35,6 +39,10 @@ export const updateRoomSchema = z.object({
   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(),
+  stretchCeilingOffset: z
+    .number()
+    .min(0, 'Stretch ceiling offset must be non-negative')
+    .optional(),
   order: z.number().int().min(0).optional(),
   posX: z.number().optional(),
   posY: z.number().optional(),

packages/shared/src/types/elements.ts

@@ -224,6 +224,17 @@ export const ELECTRICAL_TYPES = [
 ] as const;
 export type ElectricalType = (typeof ELECTRICAL_TYPES)[number];
 
+export const OUTLET_DIRECTIONS = ['horizontal', 'vertical'] as const;
+export type OutletDirection = (typeof OUTLET_DIRECTIONS)[number];
+
+export const WALL_LIGHT_STYLES = [
+  'classic',
+  'pendant-globe',
+  'sconce-up',
+  'sconce-down',
+] as const;
+export type WallLightStyle = (typeof WALL_LIGHT_STYLES)[number];
+
 export interface ElectricalItem {
   readonly id: string;
   readonly roomId: string;
@@ -277,6 +288,35 @@ export interface UpdateElectricalItemDto {
   readonly metadata?: Record<string, unknown> | null;
 }
 
+// ── FurnitureTexture ──
+
+export const FURNITURE_TEXTURES = [
+  'NONE',
+  'WOOD_LIGHT',
+  'WOOD_MEDIUM',
+  'WOOD_DARK',
+  'WOOD_HERRINGBONE',
+  'OAK_NATURAL',
+  'LAMINATE',
+  'CONCRETE',
+] as const;
+export type FurnitureTexture = (typeof FURNITURE_TEXTURES)[number];
+
+/** Furniture types that support surface texture selection. */
+export const TEXTURABLE_FURNITURE: readonly FurnitureType[] = [
+  'DESK',
+  'TABLE',
+  'SHELF',
+  'NIGHTSTAND',
+  'DRESSER',
+  'DRESSING_TABLE',
+  'BOOKCASE',
+  'WARDROBE',
+  'CHAIR',
+  'BED',
+  'CRIB',
+];
+
 // ── FurnitureItem ──
 
 export const FURNITURE_TYPES = [

packages/shared/src/types/room.ts

@@ -11,6 +11,7 @@ export const FLOOR_TYPES = [
   'WOOD_MEDIUM',
   'WOOD_DARK',
   'WOOD_HERRINGBONE',
+  'OAK_NATURAL',
   'TILE_WHITE',
   'TILE_GRAY',
   'LAMINATE',
@@ -50,6 +51,13 @@ export interface Room {
   readonly wallHeight: number;
   readonly plinthHeight: number;
   readonly plinthThickness: number;
+  /**
+   * Distance (meters) the stretch ceiling hangs below the structural ceiling.
+   * 0 means no stretch ceiling. The effective ceiling plane is at
+   * `wallHeight - stretchCeilingOffset`. Visualization only — does not
+   * affect wall geometry, opening positions, or electrical elevations.
+   */
+  readonly stretchCeilingOffset: number;
   readonly order: number;
   readonly posX: number;
   readonly posY: number;
@@ -80,6 +88,7 @@ export interface CreateRoomDto {
   readonly wallHeight?: number;
   readonly plinthHeight?: number;
   readonly plinthThickness?: number;
+  readonly stretchCeilingOffset?: number;
   readonly order?: number;
   readonly posX?: number;
   readonly posY?: number;
@@ -98,6 +107,7 @@ export interface UpdateRoomDto {
   readonly wallHeight?: number;
   readonly plinthHeight?: number;
   readonly plinthThickness?: number;
+  readonly stretchCeilingOffset?: number;
   readonly order?: number;
   readonly posX?: number;
   readonly posY?: number;