Factory widget: wire START FORGE, live status polling, forge queue UX

[joelteply]

Summary

Wire the factory widget to actually start forges, show live status, and display the job queue. This makes the factory operational.

Tasks

• Wire START FORGE button → triggers grid/send to BigMama with forge recipe params
• Wire model/forge-status polling → live progress in Active Forge section
• Forge queue display — show queued/running/completed jobs with expandable details
• Event-driven status updates (subscribe to forge events, not just polling)
• AI personas can queue forges too — same interface, same queue visibility

UX

• Active forge shows real-time: phase, step/total, loss, VRAM gauge, ETA
• Queue shows pending jobs with position, estimated start time
• Completed forges show results with expand/collapse for details
• All visible from factory tab — no separate pages needed

Related

• Factory — forge production floor with SCADA monitoring and AI foreman #576 (Factory SCADA)
• Factory job queue — RTOS-style task scheduling across grid nodes #638 (Job queue)
• Python↔Rust bridge: protobuf schema for forge events (like ts-rs for Rust↔TS) #646 (Python↔Rust bridge for forge events)