Bootstrap project and safe work-item workflow

delivery_backlog/stories/US01-03-inventory-identity.md

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+# US01-03 — Discover and Reconcile Stable Assets
+
+Epic: [E01](../E01-shared-identity-inventory.md)
+
+As a user, I want scans to discover eligible photos and retain identity across moves
+so reorganizing folders does not lose prior work.
+
+## Acceptance criteria
+
+- Donor discovery and reconciliation logic is extracted behind `InventoryService`.
+- All supported roots use one boundary and exclusion policy; unsafe symlink paths fail.
+- New, moved, copied, replaced, missing, active, and archived occurrences are distinct.
+- Enumeration is deterministic and rescanning unchanged input is idempotent.
+
+## Automated tests
+
+- Unit/property tests cover path normalization, boundaries, and reconciliation.
+- Integration tests move, copy, replace, remove, and rescan fixture assets, asserting
+  stable IDs and exact durable states after restart.
+
+## Dependencies
+
+- US01-02