PackController.Info's ownedItemsByItemId projection used `i.Item.Id` to
key the dict — EF translates that to the FK column today, but any future
model change that breaks the nav→column mapping would fall back to client
eval and collapse every key to 0 (the default Item constructor's Id),
silently hiding every tutorial pack via item_number=0. EF.Property<int>
reads the shadow FK directly and is robust to nav changes.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
The tutorial alias bypassed the currency / type_detail / open-count guards
unconditionally. Combined with the unconditional TutorialState=100 write, any
authenticated viewer could send /tutorial/pack_open with any parent_gacha_id
to draw a pack for free and clobber their state down to 100.
Two gates: parent_gacha_id MUST be 99047 (the legendary starter), and the
viewer's TutorialState MUST be below 100. The state write is also max-preserved
as a belt-and-braces backstop. Mirrors the 31→41 guard in GiftController.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Without .ThenInclude(i => i.Item), the OwnedItemEntry.Item nav defaults to a
new ItemEntry() with Id=0 (project_ef_nav_include_pitfall), so the
FirstOrDefault(i => i.Item.Id == ticketItemId) lookup never matched. The
ticket was never decremented and reward_list omitted the post-state entry —
on the next /tutorial/pack_info the pack stayed visible and the client
re-clicked into plain /pack/open, which 501s on type_detail=5.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Stack [HttpPost("/tutorial/pack_open")] alias on PackController.Open. Detect
isTutorialPath via HttpContext.Request.Path; gate the type_detail rejection,
currency switch, open-count tracking, and currency reward_list entries behind
!isTutorialPath so the starter legendary pack (99047/990047, type_detail=5)
bypasses the purchasable-pack code path. After grant, set MissionData.TutorialState=100
and emit tutorial_step=100 in PackOpenResponse — this is the sole END transition,
per live-traffic capture. Add pack 99047 to test-fixture packs.json.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Stacks a second [HttpPost("/tutorial/pack_info")] absolute route on
PackController.Info so the tutorial flow resolves to the same action
and returns the same pack_config_list as /pack/info (no filtering in v1).
Adds PackControllerTests.cs with TutorialPackInfo_returns_same_list_as_pack_info
verifying byte-identical responses from both URLs.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
