Session 23: All-day intelligence layer — schedule, game lines, streaks, hot lists, stat filtering, ParlayAPI dead (1567 tests)

CLAUDE.md

@@ -57,6 +57,22 @@ vyndr/
 └── DECISIONS.md       # Architecture decisions log
 ```
 
+## All-Day Intelligence Layer (Session 23)
+Free/cheap content that keeps the platform alive when odds-api props are
+empty. NONE of these spend odds-api credits:
+- `/api/schedule/:sport` — cache-aside ESPN scoreboard (`scheduleService`),
+  self-heals on cache miss. Per-game `hasOdds`/`hasGameLines` flags peek at
+  other caches without fetching.
+- `/api/gamelines/:sport` — Tank01 book-by-book lines (RAPID_API_KEY quota).
+- `/api/streaks/:sport` + `/api/hotlist/:sport` — PURE engines
+  (`streaksService`, `hotListService`) computed from cached game logs. NO
+  API calls. Logs loaded by `rosterLogs.js` (prefetch blob, else Redis SCAN
+  over `gamelogs:{sport}:{player}:{count}`). Empty roster = valid empty state.
+- `?stat=` filters narrow streaks/hotlist; categories in `config/statFilters.js`
+  (mirror `web/src/config/statFilters.ts`). Discovery: `/api/stats/filters/:sport`.
+- Dead providers: set `status: 'dead'` in `config/providers.js` to drop a
+  provider from fallback chains + configured list (ParlayAPI host is dead).
+
 ## Active Skills
 - vyndr-voice (all user-facing output)
 - prop-analysis (grading methodology)