Two-task TDD plan: (1) serde-derive the library structs + library_snapshot
table with save/load + unit tests; (2) desktop wiring to seed self.library at
launch and write the snapshot after every scan.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Six tasks (Q1–Q4 research + emulator repros, plus scaffold and go/no-go
synthesis) against the approved spec. Research-spike shape: investigate →
reproduce-where-cheap → record evidence → verdict, not TDD.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>