Edit Issue - .issue.db

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Description

## Task
Update ansible playbooks for production deployment across both clusters.

## Current State
- dev-deploy.yml: Deploys to minikube (full stack)
- worker-deploy.yml: Deploys workers only to srv2

## Required Changes

### 1. Image handling
- Build once, push to DockerHub (rodmenalimited/highway-workflow-engine:tag)
- Both clusters pull from DockerHub (not local build)
- Add imagePullSecrets configuration

### 2. Minikube production deployment
- Reduce workers to 1 each type (testing distribution)
- Keep API + Dashboard
- Use production database (pg.rodmena.app)
- Domain: highway.solutions

### 3. srv2 production deployment  
- Keep current worker counts (7+4+3)
- Remove any dev configurations
- Ensure connects to same production DB

### 4. New playbooks needed
- playbooks/prod-deploy.yml (orchestrates full production deployment)
- playbooks/prod-build-push.yml (build + push to DockerHub)

### 5. Inventory updates
- Separate prod vs dev host groups
- Production-specific variables

## Deployment flow
```
1. ansible-playbook prod-build-push.yml  (build + push to DockerHub)
2. ansible-playbook prod-deploy.yml      (deploy to both clusters)
```

## Parent: #726

Due Date (YYYY-MM-DD)

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Edit Issue #731