MissionEventKeys grows six new nested static classes covering the wire-up
gap for the counter families that Practice/Story left uncovered. Each mirrors
the established (Practice/Story) shape: named accessors for individual keys,
`{Family}.WinAll(...)` / `AchievedAll(...)` etc. as convenience arrays that
callers pass straight to RecordEventAsync.
RankTier lives at SVSim.Database/Enums/RankTier.cs since the concept (rank_id
→ tier bucket) is data-shaped, not emit-specific, and RankProgressService
will need it internally for tier-crossing detection. Ranked/ClassLevel/Rank
builders in MissionEventKeys compose Class.Name and RankTier.Name.
12 new registry tests cover the family shapes plus tier boundary edges
(rank 4/5, 24/25, 25/26).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Central registry of every string that can appear as ViewerEventCounter.EventKey
or catalog EventType. All 12 top-level prefixes from the achievement/mission
seed JSON are constants; Practice.WinAll and Story.ChapterFinishAll are
hierarchical builders that emit multi-level counter keys per event.
Practice.WinAll translates the wire (difficulty:int, enemy_class_id:int) tuple
into the catalog-facing named form (elite/elite2/elite3 : arisa/erika/...).
Wire difficulty 4/6/7 map to elite/elite2/elite3 (verified via
practicetext.json + practice-opponents.json + practice_ai_setting.csv). Class
1-8 map to the leader names in CardClass ordering. Wire values outside the
known set skip that hierarchical level but still advance the top-level counter.
MissionEventKeys.IsRegistered validates that a string starts with a registered
top-level prefix — for seed-importer drift checks in the next commit.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
