## Context Indexer schema and API for TimeArena multi-epoch podiums. Parent epic: #238. ## Relevant files - `indexer/migrations/` - `indexer/src/decoder.rs`, `indexer/src/api.rs` - `docs/indexer/design.md` ## Acceptance criteria - [ ] Tables: `idx_arena_buy`, `idx_arena_podium_epoch`, `idx_arena_podium_snapshot`, `idx_play_cred_claim`, `idx_player_xp`, `idx_warbow_epoch_score` - [ ] Replace `GET /v1/timecurve/*` with `GET /v1/arena/*` (timers, podiums, epochs) - [ ] `GET /v1/arena/podiums`: live predictions per category per epoch - [ ] `GET /v1/arena/timers`: all five deadlines (Last Buy + 4 podiums) - [ ] Ingest all TimeArena events; drop TimeCurve-only tables in fresh DB - [ ] WarBow: store full score history per WarBow epoch for admin finalize UI ## Verification checklist - [ ] `integration_stage2.rs` coverage for new events - [ ] `SCHEMA_VERSION` bump + frontend `indexerApi.ts` types