CommitAsync now calls WriteAcquireHistory() between the two SaveChanges
calls: iterates _ops, skips SpendOps, writes one ViewerAcquireHistoryEntry
per GrantOp. Cascade rows get GrantSource.CardCosmeticCascade; wallet
currencies zero RewardDetailId; all rows in a single commit share one
DateTime.UtcNow timestamp. Closes _source plumbing from Task 5.
5 new tests added (46 total inventory, 0 failures).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds the ViewerAcquireHistoryEntry model (8 fields: Id, ViewerId,
RewardType, RewardDetailId, RewardCount, AcquireType, Message,
AcquireTime), registers DbSet<ViewerAcquireHistoryEntry> on
SVSimDbContext, configures model (PK, FK cascade to Viewer, MaxLength
64 on Message, composite index on ViewerId/AcquireTime/Id), and adds a
DbSet round-trip integration test.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds a `GrantSource Source { get; set; }` property (defaults to
`GrantSource.Unknown`) to `InventoryLoadConfig`. Plumbing-only — no
behavior change; callers that don't set `Source` get Unknown rows,
greppable via `acquire_type=0` in dev.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Introduces GrantSource (17 values, DB-persisted) and GrantSourceMessages.For()
for the item-acquire-history feature. Values 1/2 mirror prod captures;
coverage test verifies every enum value has a non-empty message.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
