Add hide component feature, usage indicators, and Docker support

- Add is_hidden field to hide components from configurator
- Add colored dot indicator showing component usage status:
  - Green: available in configurator
  - Cyan: used as source for meta-articles
  - Gray: hidden from configurator
- Optimize price recalculation with caching and skip unchanged
- Show current lot name during price recalculation
- Add Dockerfile (Alpine-based multi-stage build)
- Add docker-compose.yml and .dockerignore

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,17 @@
+services:
+  quoteforge:
+    build: .
+    container_name: quoteforge
+    restart: unless-stopped
+    ports:
+      - "8080:8080"
+    volumes:
+      - ./config.yaml:/app/config.yaml:ro
+    environment:
+      - TZ=Europe/Moscow
+    healthcheck:
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8080/health"]
+      interval: 30s
+      timeout: 3s
+      retries: 3
+      start_period: 5s