refactor: create docker-stack workspace for deployment configs

Created dedicated workspace for Docker deployment configurations and scripts.
Improves organization by grouping all deployment-related files together.

## New Structure
- docker-stack/: Docker Compose files and deployment scripts
  - docker-compose-standalone.yaml
  - docker-compose-swarm.yml
  - docker-compose-debug.yml
  - deploy-standalone.sh
  - deploy-swarm.sh
  - README.md (deployment documentation)
  - package.json

## Changes
- Moved all docker-compose YAML files to docker-stack/
- Moved deploy scripts to docker-stack/
- Updated VS Code workspace to include docker-stack
- Updated documentation (README, CLAUDE.md)

## Deployment Workflow
1. Build: `cd web-app && ./build.sh 2.20.0`
2. Deploy: `cd docker-stack && ./deploy-standalone.sh 2.20.0`

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

docker-stack/docker-compose-debug.yml

@@ -0,0 +1,31 @@
+# this compose file runs Postgres db and exposes it's port to the host machine
+version: "3.7"
+
+services:
+  mongo:
+    image: mongo:4.4.27
+    container_name: evidencija-rezija__mongo
+    ulimits:
+      nofile:
+        soft: 64000
+        hard: 64000
+    restart: always
+    ports:
+      - 27017:27017
+    environment:
+      MONGO_INITDB_ROOT_USERNAME: root
+      MONGO_INITDB_ROOT_PASSWORD: HjktJCPWMBtM1ACrDaw7
+    volumes:
+      - ./mongo-volume:/data/db
+      - ./mongo-backup:/backup
+  mongo-express:
+    image: mongo-express
+    container_name: evidencija-rezija__mongo-express
+    restart: always
+    ports:
+      - 8081:8081
+    environment:
+      ME_CONFIG_MONGODB_ADMINUSERNAME: root
+      ME_CONFIG_MONGODB_ADMINPASSWORD: HjktJCPWMBtM1ACrDaw7
+      ME_CONFIG_MONGODB_URL: mongodb://root:HjktJCPWMBtM1ACrDaw7@mongo:27017/
+