Enhanced Plugin Error Tracking

What changed: Plugin loading failures are now tracked individually with structured error information instead of failing silently

Details:

• New errors array in plugins state stores error details with source attribution
• Individual try-catch blocks around commands, agents, and hooks loading prevent cascading failures
• Error objects include source field: "plugin-commands", "plugin-agents", "plugin-hooks", or "plugin-loading"
• Error count included in startup logs: Loaded plugins - ... Errors: ${count}
• If one plugin component fails to load, others still attempt to load
• Evidence: ad1() at line 423922, errors field at line 448824 in v2.0.10 (errors ignored in dMB() at line 422999 in v2.0.9)