feat(cli): Complete command registry with 5 categories (32 commands)

[ruvnet]

Summary

Updates CLI help to show all 32 commands organized into 5 clear categories, following DDD bounded contexts.

Closes #1023

Changes

New: commands/categories.ts

• CommandCategory interface
• 5 category definitions: Primary, Advanced, Utility, Analysis, Management
• Helper functions for category formatting

Updated: commands/index.ts

• All 32 commands loaded synchronously
• commandsByCategory export for organized access
• Backwards-compatible exports

Updated: index.ts (CLI main)

• showHelp() displays commands by category
• Clear visual hierarchy

New: ADR-045-cli-command-registry.md

• Documents the decision and rationale

Help Output (Before → After)

Before: 18 commands in single "COMMANDS:" section
After: 32 commands in 5 categorized sections:

PRIMARY COMMANDS:     (10) init, start, status, agent, swarm, memory, task, session, mcp, hooks
ADVANCED COMMANDS:    (6)  neural, security, performance, embeddings, hive-mind, ruvector  
UTILITY COMMANDS:     (6)  config, doctor, daemon, completions, migrate, workflow
ANALYSIS COMMANDS:    (3)  analyze, route, progress
MANAGEMENT COMMANDS:  (7)  providers, plugins, deployment, claims, issues, update, process

Test plan

• npx . --help shows all 32 commands
• Commands organized into 5 categories
• Build succeeds without errors
• Individual command help still works
• No breaking changes to existing imports

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