0da8ebe1c1
Replaces GlobalsImporter's ImportPuzzleGroups/Puzzles/Missions methods (plus the DeriveTargetPuzzleGroupId regex helper) with a dedicated PuzzleImporter that reads three flat seed JSONs (puzzle-groups, puzzles, puzzle-missions) produced by the Python extractor. Groups run before puzzles to satisfy the FK; missions upsert by sequential id. Wired into Program.cs and SVSimTestFactory after PaymentItemImporter so existing GlobalsImporterPuzzleTests continue to pass unchanged via SeedGlobalsAsync. The original prod-capture JSONs are deleted now that the seeds are authoritative. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>