Add schematic-to-PCB component navigation callback

[0hmX]

Summary

Adds the producer-side API for navigating from a schematic component to its matching PCB component without coupling schematic-viewer to tabs or pcb-viewer.

• adds the optional onNavigateToPcbComponent callback
• resolves and emits schematic, source, and PCB component IDs
• shows a compact, theme-matched Go to PCB View action only when a PCB representation exists
• preserves existing component-click and popup behavior
• exports the new callback options and viewer prop types

PR chain

Part 1 of 3 — merge first.

1. This PR: schematic-viewer navigation callback
2. tscircuit/pcb-viewer#963 — controlled component focus
3. tscircuit/runframe#4668 — tab and focus integration

The downstream runframe integration requires releases containing parts 1 and 2 before its dependency versions can be updated.

Validation

• bun test — 25 passed
• bun run format:check
• bun run build

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Project	Deployment	Actions	Updated (UTC)
schematic-viewer	Building	Preview	Aug 20, 2026 2:37pm