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PackImporter now runs a second pass over pack-stubs.json, inserting PackConfigEntry placeholders for any pack_id NOT already present from the live-capture packs.json pass. Synthesized stubs default IsEnabled=false; live-capture rows default IsEnabled=true. PackRepository.GetActivePacks filters by IsEnabled in addition to the date window, so synthesized stubs stay hidden until an operator opts them in (UPDATE Packs SET IsEnabled=true WHERE Id=...). Bundles Task 6 + Task 11 because adding pack-stubs.json to the test-fixture set surfaces an extra row in PackControllerFullCatalogTests' 35-pack count assertion; the filter is what makes the test resilient. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>