Implement Cluster Manager

[tldrwtf]

Description

Migrate cluster-based auto-restart from legacy code to TypeScript.

Tasks

• Port cluster manager from index.js:1-10
• Handle worker crashes and automatic restart
• Integrate with src/index.ts
• Test crash recovery

Original Code Reference

• index.js:1-10 - Cluster management code

Files to Modify

• src/index.ts

Dependencies

• src/index.ts wiring complete (Issue Wire All Modules in Entry Point (src/index.ts) #38)

Priority

P1

Size

M (4-8 hours)

Phase

Phase 6 - Integration & Cutover

Parent Issue

#12