QC-57: Live tracking map (customer)

[DarshanCode2005]

Summary

Live tracking map (customer)

Milestone: M7 UI Polish
Labels: frontend, customer, realtime

Learn

• Dual pins on map
• Subscribe to agent-location

Build

• Tracking section on order detail
• Update agent pin on Pusher event

Files

• components/map/TrackingMap.tsx

Acceptance criteria

• Agent pin moves in real time
• Customer address pin static

Depends on

• QC-56: Order detail status stepper #58 (QC-56)
• QC-48: usePusher hook + channel join helpers #50 (QC-48)
• QC-43: Location relay API + Pusher broadcast #45 (QC-43)