Automatically output per-issue SVGs for schematic placement checks

[seveibar]

tsci check schematic-placement [file] now automatically writes one SVG per reported issue to dist/schematic-placement/ and prints each output path alongside the existing analysis text. Each SVG contains the cropped schematic, one issue overlay, and only that issue's XML description underneath.

Uses the newly merged createSchematicPlacementIssueArtifacts() API and reuses the analysis instead of running the solvers twice. Updates the pinned schematic-placement dependency and lockfile. Reruns remove only previously generated issue SVGs so resolved issues do not leave stale reports; other files are preserved, and a clean first run creates no output directory.

Validation:

• All 3 schematic-placement CLI integration tests pass, covering TSX and prebuilt Circuit JSON, emitted artifact contents/paths, clean results, stale-report cleanup, and preservation of unrelated files.
• Typecheck, repository format check, frozen-lockfile install, and CLI build pass.
• Built CLI smoke test against the real wireless-mouse sensor export writes all 5 issue SVGs (3 trace simplification reports and 2 orientation reports).