vyndr/BUILD-STATE.md

# VYNDR — Build State

## Last Updated
2026-05-18

## Current Phase
SHIP BUILD v6.0 — Web Tier Complete (Dashboard + Game Pages + Intelligence Feed + PWA + NexaPay)

## Web Tier v6 (2026-05-18) — SHIPPED
Complete frontend overhaul. 18 pages, 22 API routes. `npm run build` passes with zero errors.

### New pages
- `/dashboard` — post-login slate (sport tabs, top grades, tonight's games, most parlayed, recent scans, first-time onboarding)
- `/game/[id]` — game preview with spread/total/ML, starting lineups with injury flags, expandable prop list, add-to-parlay
- `/profile` — tier status, subscription state, founder badge, cancel-at-period-end flow
- `/intelligence` — Desk-tier timeline of evolution/coaching/cascade/ABS/line-movement signals (blurred for non-Desk)
- `/terms`, `/privacy`, `/responsible-gambling` — branded legal pages with brand voice
- `/scan` — full rebuild (sport tabs, real /api/scan with tier gating, parlay tray hook)
- `/login`, `/signup` — wired to Supabase Auth via AuthContext (Google OAuth + email/password + age check)
- `/marketplace` — coming-soon waitlist (API access, custom alerts, capsule drop)
- `/ledger`, `/tracker` — design system refresh, accuracy buckets, miss autopsy, quick-slip
- `/` — auth-aware: logged-in users redirect to `/dashboard`; anonymous see marketing

### New API routes
- `/api/games/tonight`, `/api/games/[id]`, `/api/games/[id]/props`
- `/api/props/top-graded`, `/api/props/most-parlayed`
- `/api/players/search`
- `/api/user/recent-scans`
- `/api/intelligence/feed`
- `/api/parlay/add-leg`, `/api/parlay/grade`
- `/api/ledger`, `/api/ledger/accuracy`
- All cached via Supabase `odds_cache` table (5-min TTL) — never hit Odds API directly

### Services + middleware
- `services/odds-cache.ts` — Supabase-backed TTL cache for upstream calls (loader + stale-fallback)
- `services/email.ts` — Resend wrapper: `sendWelcomeEmail`, `sendPaymentReceipt`, `sendRenewalReminder`
- `middleware/rateLimit.ts` — per-tier per-minute scan throttle (5/30/60 free/analyst/desk)
- `services/nexapay.ts` — already shipped (createPaymentLink + HMAC webhook verify), now wired to email receipts

### Components
- `GradeCard.tsx` — premium grade card with tier-gated blur (factors locked for free; alt-lines locked for non-Desk)
- `ParlayContext.tsx` + `ParlayTray.tsx` — cross-page parlay state, slide-up tray, /api/parlay/grade integration
- `BottomTabBar.tsx` — mobile-only 5-tab navigation (Home/Scan/Parlay/Ledger/Profile) with parlay badge
- `ShareCard.tsx` — canvas-rendered 1200x630 OG share image with grade letter; download + copy-to-clipboard
- `Nav.tsx`, `Hero.tsx`, `LivePropsStrip.tsx`, `Features.tsx`, `Pricing.tsx`, `HowItWorks.tsx`, `FAQ.tsx`, `Footer.tsx` — design system refresh already shipped

### PWA + meta
- `public/manifest.json` (192/512/maskable icons)
- `public/icons/icon-{192,512,maskable-512}.png`, `apple-touch-icon.png`, `favicon.ico`, `favicon.png`
- `public/og-image.png` — 1200x630 social share card
- `appleWebApp` + `manifest` + theme-color wired in `layout.tsx`

### Supabase migrations
- `011_user_profiles_web.sql` (already deployed): `user_profiles` (+RLS+trigger), `parlay_leg_frequency` (+RPC), `scan_history`
- `012_web_caching_waitlist.sql` (NEW): `odds_cache` (TTL cache), `waitlist_signups`, `founder_pricing_seats` view, `prune_expired_odds_cache()` helper

### Backend
- `src/app.js` — CORS middleware added (localhost dev + vyndr.app + *.vercel.app + FRONTEND_ORIGINS env var)
- `package.json` — added `cors@2.8.5`

### Bug fixes
- Scan page sibling-div JSX bug fixed (rewritten from scratch)
- Lockfile warning silenced via `next.config.ts` `turbopack.root` (already in place)
- Auth callback rewritten to use Supabase JS session API instead of raw localStorage parse

## Environment variables (set in Vercel + Railway)
### Vercel (Next.js)
- `NEXT_PUBLIC_SUPABASE_URL` — Supabase project URL
- `NEXT_PUBLIC_SUPABASE_ANON_KEY` — Supabase anon key
- `SUPABASE_SERVICE_ROLE_KEY` — service role (server-only, NEVER expose to client)
- `NEXT_PUBLIC_SITE_URL` — `https://vyndr.app`
- `BACKEND_URL` — Railway URL of Express grading engine
- `NEXT_PUBLIC_API_URL` — same as BACKEND_URL (for legacy client fetches)
- `NEXT_PUBLIC_NBA_SERVICE_URL` — FastAPI nba_api wrapper URL
- `NEXAPAY_API_KEY` — bearer token from NexaPay dashboard
- `NEXAPAY_WEBHOOK_SECRET` — HMAC secret from NexaPay dashboard
- `NEXAPAY_API_URL` — defaults to `https://api.nexapay.one/v1`
- `RESEND_API_KEY` — from resend.com
- `RESEND_FROM_EMAIL` — defaults to `VYNDR <grades@vyndr.app>`
- `NEXT_PUBLIC_POSTHOG_KEY` — PostHog project key (optional)
- `NEXT_PUBLIC_POSTHOG_HOST` — defaults to `https://us.i.posthog.com`

### Railway (Express backend)
- All existing engine vars (Odds API key, Supabase, etc.)
- `FRONTEND_ORIGINS` — comma-separated additional CORS origins (optional; defaults cover localhost + vyndr.app + *.vercel.app)

## Vercel deployment
1. Repo root → `/home/kev/mastermind/vyndr`
2. Root Directory in Vercel project settings: `web`
3. Framework Preset: Next.js (auto-detected)
4. Build Command: `npm run build` (default)
5. Install Command: `npm install` (default)
6. Output Directory: `.next` (default; we use `output: 'standalone'`)
7. Node version: 20.x or 22.x
8. Add all env vars from the list above

## Railway deployment (backend)
1. `railway.toml` already configured in repo root
2. Connect GitHub → Deploy from `main`
3. Set env vars (same as Vercel backend list)
4. Get URL → set `BACKEND_URL` in Vercel

## NexaPay configuration
1. Create NexaPay account → get API key + webhook secret
2. Webhook URL: `https://vyndr.app/api/webhook/nexapay`
3. Webhook events to enable: `payment.succeeded`, `payment.failed`, `payment.refunded`, `subscription.canceled`
4. Settlement wallet: USDC on Polygon (or your preferred chain)
5. Set `NEXAPAY_*` env vars in Vercel

## Resend configuration
1. Create Resend account → verify `vyndr.app` domain
2. Add DNS records (SPF, DKIM, DMARC) from Resend dashboard
3. Create API key → set `RESEND_API_KEY` in Vercel
4. Test: trigger a signup, check the welcome email arrives

## Supabase Auth setup
1. Run migrations `011_user_profiles_web.sql` and `012_web_caching_waitlist.sql` (Supabase SQL editor or CLI)
2. Auth → Providers → enable Email/Password (default)
3. Auth → Providers → enable Google: paste client ID/secret from Google Cloud Console
4. Auth → URL Configuration → Site URL: `https://vyndr.app`
5. Auth → URL Configuration → Redirect URLs: `https://vyndr.app/auth/callback`, `http://localhost:3001/auth/callback`

---

## What Has Shipped (Backend — Already Live)

### Phase 1 — Foundation (COMPLETE)
- Feature 1.1 — Odds API Integration
- Feature 1.2 — NBA_API Stats Wrapper (FastAPI microservice)
- Feature 1.3 — Prop Analysis Engine (6-step grading pipeline)
- Feature 1.4 — Database Schema (9 tables, RLS, triggers)
- Feature 1.5 — Bet Submission (3 methods + performance tracking)

### Phase 2 — Core Product (COMPLETE)
- Feature 2.1 — Parlay Scan (correlation detection, monetization)
- Feature 2.2 — Line Movement + Cascade Detection

### Phase 3 — Web MVP (COMPLETE)
- Feature 3.1 — Landing Page + Blog (Next.js, MDX, VYNDR voice, SEO)
- Feature 3.2 — Scan UI (leg builder, grade results, upgrade pitch)
- Feature 3.3 — Bet Tracker (performance dashboard, quick slip, settle flow)
- Feature 3.4 — Stripe Integration (checkout, webhooks, portal, founder codes)

## Also Shipped (Separate Repo)
### Mastermind Agency Site
- `/home/kev/mastermind/agency-site/`
- Glitch aesthetic, scan lines, CRT flicker, JetBrains Mono
- Home, VYNDR case study, Contact pages

### Phase 1 Additions — Intelligence Engine (COMPLETE)
- Addition 1 — Stats endpoints (parlays-graded, public, live props)
- Addition 2 — Dynamic role profile system (8 roles, Shannon entropy, conditional profiles)
- Addition 3 — Player selector (placeholder — Cowork handles design)
- Addition 4 — Parlay probability (phi coefficient, juice-adjusted EV, correlation math)
- Addition 5 — MLB prop grading (14 stat types, 10 kill conditions, 30 parks, weather API)
- Addition 6 — Intelligence engine (similarity, evolution/PELT, line discrepancy, alt line, Bayesian, model trainer)
- Addition 7 — Lineup watch speed (role activation detection framework)
- Addition 8 — Database additions (7 new tables, migration 003, indexes, RLS)
- Addition 9 — Design system update (forest green, Hero tagline, live props strip, DemoScan result card)
- Addition 10 — Accuracy ledger page (/ledger)
- Addition 11 — Marketplace page (/marketplace, waitlist, honeypot)
- Addition 12 — ARCHITECTURE.md v1.0
- Permanent: FOUNDER_NOTE constant (immutable, tested for integrity)
- Permanent: X-VYNDR-Mission header on all API responses

## Also Shipped (Separate Repo)
### Mastermind Agency Site
- `/home/kev/mastermind/agency-site/`
- Glitch aesthetic, scan lines, CRT flicker, JetBrains Mono
- Home, VYNDR case study, Contact pages

## Test Summary
- Node.js: 662 tests passing (unit + integration) — 357 original + 187 ship + 65 supplement + 35 patch + 45 security
- Python: 27 tests passing
- Total: 689 tests, all green
- 8 new test files: shipInfrastructure, shipGradingEngine, shipDataSources, shipResolution, shipSchemeClassifier, supplementSystems, patchIntegration, securityAudit
- Next.js project builds (pending Vercel deploy)

## Active Blockers
- BLOCKER-003: WSL2 DNS cannot resolve *.supabase.co
- Migrations 003-010 need manual apply via Supabase SQL Editor

### Phase 1 Additions Part 2 (COMPLETE)
- Addition 13 — Simplified scan selector (sport toggle NBA/MLB, player search, stat dropdown, line pre-fill from Odds API)
- Addition 14 — PostHog analytics integration (5 events: scan_completed, grade_viewed, upgrade_cta_clicked, prop_shared, alt_line_viewed)
- Addition 15 — Affiliate database (Migration 004: referral_codes, referral_conversions, affiliate_payouts, wallet_addresses, RLS on all)
- Addition 16 — Scheme intelligence data layer (schemeClassifier.js: PnR coverage classification DROP/SWITCH/HEDGE/MIXED/UNKNOWN, 8-possession min, 6hr cache, graceful degradation, silent logging to model_predictions_extended)
  - **Scheme intelligence: data layer active, user activation pending Day 31**

## Phase 2 Pending
- Model learning loop (Feature 4.1 spec exists)
- Player selector UI completion (Cowork handles design)
- Full parlay probability UI integration
- Real-time lineup watch CRON implementation
- Evolution watch UI on ledger page
- Pre-registered predictions system activation
- Physical ledger fulfillment
- Education library content

## Manual Actions Required
1. Paste SQL migrations 003-010 in Supabase SQL Editor (in order)
2. Run `node scripts/seedRoleProfiles.js` after NBA API access configured
3. Set Stripe env vars (STRIPE_SECRET_KEY, STRIPE_WEBHOOK_SECRET, price IDs)
4. Set NEXT_PUBLIC_POSTHOG_KEY env var for PostHog analytics
5. Set ODDS_API_KEY env var for Odds API
6. Set SUPABASE_URL + SUPABASE_SERVICE_ROLE_KEY for Python service
7. Deploy Next.js frontend to Vercel
8. Start Python service: `cd src/services/python && pip install -r requirements.txt && python3 app.py`
9. Set up GitHub Actions crons: lineup monitoring (15min), morning odds (10am ET), pre-game odds (90min), weather (30min), nightly resolution (2am ET)
10. Run cold_start_boot() on first launch (seeds reporters, loads data files)
11. SHADOW_MODE=True for first 2 weeks — grades logged but not published to capper

## Session Log

### Sessions 1-6 — 2026-03-21/22
- Built all backend: Phase 1 + Phase 2 + Feature 1.5
- 221 backend tests passing

### Session 7 — 2026-03-22
- Built Feature 3.1: Landing page + blog (Hero, Pricing, Blog/MDX, Auth pages)
- Built Mastermind Agency Site (glitch aesthetic, 5 pages)
- Built Features 3.2 + 3.3: Scan UI + Bet Tracker
- Built Feature 3.4: Stripe Integration (checkout, webhooks, portal, founder codes)
- ALL FEATURES COMPLETE
- Total: 237 tests (210 Node.js + 27 Python), all green

### Session 8 — 2026-03-28
- Built all 12 Phase 1 additions in single session
- 68 new tests (305 total), all green
- New services: roleProfileEngine, roleStabilityEngine, similarityEngine, evolutionEngine, lineDiscrepancyDetector, altLineScanner, bayesianEngine, modelTrainer, correlationMath, mlbGrader, mlbKillConditions, mlbStatsClient
- New routes: stats, props, waitlist
- New frontend: LivePropsStrip, ledger page, marketplace page
- New constants: founderNote, mlbParks
- New middleware: mission header
- Migration 003: 7 new tables with indexes and RLS
- Python microservice: evolutionEngine.py (Flask/PELT on port 5001)
- ARCHITECTURE.md v1.0 created

### Session 9 — 2026-04-12
- Built 4 Phase 1 Part 2 additions
- 52 new tests (357 total), all green
- New component: SimplifiedSelector (sport toggle, player search, stat dropdown, line pre-fill)
- PostHog analytics: 5 tracked events, initialized in layout.tsx
- Migration 004: 4 affiliate tables (referral_codes, referral_conversions, affiliate_payouts, wallet_addresses)
- New service: schemeClassifier.js (PnR coverage classification, 6hr cache, graceful degradation)
- Scheme intelligence: data layer active, user activation pending Day 31

### Session 10 — 2026-04-13 (SHIP BUILD v5.1)
- Built complete dual-sport grading engine from vyndr-SHIP.md spec
- 187 new tests (544 total), all green across 38 test suites
- **Phase 1 — Infrastructure:**
  - Flask app.py with blueprints, health check, rate limiting (60/min default, 20/min grade), flask-cors, /api/docs
  - evolutionEngine.py moved to blueprints/evolution.py (structural only — logic unchanged)
  - utils: retry.py, data_warehouse.py (game-day TTL), bayesian.py (per-stat-type weights, skewness, data sufficiency curve), edge_calculator.py (real edge + quarter-Kelly), context_aggregator.py (15 factors), similarity.py (min 0.7), regime_detector.py (disabled <20 games), blind_spot_detector.py (worst 5%), supabase_client.py
  - Data files: park_factors.json (30 parks, lat/lng, roof_status), reporter_database.json (80+ handles), timezone_map.json (30 arenas), grade_thresholds.json, odds_api_config.json
  - requirements.txt with all 15 dependencies
  - Cold start boot sequence with reporter seeding
- **Phase 2 — Data Sources:**
  - blueprints/synergy.py (team play types, matchup, tracking, defensive scheme)
  - blueprints/nba_context.py (teammate impact, game script, home/road, rest/travel, matchup pace, foul trouble, B2B stat-specific, positional defense, usage-efficiency, playoff modifiers, NBA sub-scores endpoint)
  - blueprints/lineup_intelligence.py (3-source architecture, reporter trust tiers, tweet parsing, two-stage grading, reporter-line correlation)
  - blueprints/odds_scanner.py (free tier 2 pulls/day, odds warehouse, line movement detection, slate scanner)
  - utils/weather.py (Open-Meteo, continuous 30min, dome detection, regrade triggers)
  - utils/archetypes.py (5 pitcher dimensions, 5 batter dimensions, 6 NBA dimensions — ALL with weight_profiles, batting order, batter approach, pitcher identity, weight blending)
  - schemeClassifier.js enhanced: Synergy-first with regex fallback, backward compatible
- **Phase 3 — Grading Engines:**
  - blueprints/mlb.py (14-step pipeline, pitcher/batter profiles, ABS challenge system with player-specific discipline score, TTO decay, platoon-specific opponent quality, lineup protection, day/night, bullpen state, catcher framing)
  - blueprints/image_grade.py (OCR pipeline with low-confidence confirmation)
  - utils/sportsbooks.py (10 books, parlay grading with correlation check, phi coefficient)
  - utils/capper.py (pick numbers, breaking alerts, daily recap, miss autopsy)
- **Phase 4 — Self-Improving Loop:**
  - blueprints/resolution.py (nightly job: actuals from nba_api/MLB-StatsAPI, hit/miss, CLV, alignment, joint outcomes, calibration triggers)
  - blueprints/calibration.py (point-biserial weights, global offset, Brier score, blind spots, CLV/alignment reports)
- **Phase 5 — Database + Tests:**
  - Migration 005: lineup_scheme_data
  - Migration 006: nba_data_cache, mlb_data_cache, grade_outcomes (ALL ship columns incl discipline_score, CLV, alignment), player_calibrated_weights
  - Migration 007: lineup_updates, reporter_trust (with source_type + starting_trust), odds_warehouse, ship_line_movements, reporter_line_correlation, api_health_log, global_calibration, ship_joint_outcomes
  - 5 new test files covering infrastructure, grading engine, data sources, resolution pipeline, scheme classifier enhancement
- **Key Spec Compliance:**
  - Grade thresholds LOCKED (A+ through F)
  - SHADOW_MODE = True (first 2 weeks)
  - Bayesian weights are INITIAL ESTIMATES (marked as such)
  - Abstention check BEFORE data cap
  - Point-biserial bounds 0.05-0.50, global offset ±0.15
  - Real edge with vig + quarter-Kelly
  - Brier + CLV from day one
  - Capper A- and above ONLY
  - ABS is CHALLENGE system (successful challenges don't deplete)
  - Foul trouble widens std, not mean
  - Stat-specific B2B adjustments
  - Matchup-specific pace (home 60/40)
  - Positional defense (tracking > roster position)
  - Usage-efficiency tradeoff (-1.5% TS per +5% usage)
  - Tier limits documented but NOT enforced (gate manually later)
  - Node.js stays Node.js, Python is data/utility layer via HTTP

### Session 10c — 2026-04-13 (FINAL INTEGRATION PATCH)
- Applied 15-item integration patch — wiring + features + infrastructure
- 35 new tests (644 total), all green across 40 test suites
- **Wiring (items 1-5):**
  - Scratch → redistribution → re-grade → alt line scan → alert chain in lineup_intelligence.py
  - Slate scan → alt line auto-scan for A-grades in odds_scanner.py
  - Nightly resolution steps 14-18: coaching update, player-out history, evolution scan, unconventional data collection, monthly validation
  - Migration 009: supplement columns on grade_outcomes (coaching_context, redistribution_context, evolution_flag, alt_line_opportunity, unconventional_factors) + unconventional_factor_data table
  - API docs updated with 7 supplement endpoints
- **Features (items 6-10):**
  - MLB lineup shift logic (PA multiplier changes when player scratched)
  - high_leverage_hook_tendency added to MLB coaching schema
  - Evolution persistence check (3 games before public promotion, false positive detection)
  - Unconventional daily data collection + monthly validation functions
  - Alt line ladder mode (ALT_LINE_MODE env var — 'manual' generates probability ladder)
- **Infrastructure (items 11-15):**
  - 5 GitHub Actions YAML files: nightly (2am ET), morning odds (10am ET), pre-game (3pm/5pm/6:30pm ET), reporter poll (every 15min), weather (every 30min)
  - scripts/seed_historical.py — one-time historical data seeder (NBA 2024-25 + MLB 2024)
  - railway.toml (Flask service, port 5001, health check)
  - web/vercel.json (Next.js deployment)
  - MLB coaching helper functions for historical seeding
- **Product is DEPLOYMENT-READY**

### Session 10d — 2026-04-13 (SECURITY AUDIT)
- Applied 19-item security hardening pass — Ryan Montgomery panel reviewed
- 45 new tests (689 total), all green across 41 test suites
- **Authentication (items 1, 8, 11):**
  - utils/auth.py: require_auth (JWT with issuer check) + require_service_role (BETONBLK_INTERNAL_KEY)
  - PyJWT added to requirements.txt
  - BETONBLK_INTERNAL_KEY separates cron auth from service key — service key never leaves Railway
- **Input Security (items 3, 10, 13):**
  - utils/validation.py: whitelist stat types, sanitize strings (strip SQL/HTML), validate line 0-500, image upload (magic bytes, 10MB max, PNG/JPEG/GIF), parlay legs 2-12
  - OCR rate limit 3/min, max 2 concurrent
  - MAX_CONTENT_LENGTH 1MB globally, 413 JSON response
- **Network Security (items 2, 12):**
  - CORS locked to ALLOWED_ORIGINS env var (no more wildcard)
  - Real IP from X-Forwarded-For for rate limiter and security logger
- **Error Handling (item 9):**
  - Production returns generic "Internal server error" — no stack traces
  - 404, 405, 413, 429 all return JSON
- **Monitoring (items 4, 5, 6, 15, 17, 18):**
  - Security headers: X-Frame-Options DENY, HSTS, CSP, nosniff, XSS protection, Server removed
  - utils/security_logger.py: request logging, rate tracking, SQL injection detection, security_events table
  - utils/env_check.py: startup validation, exits on missing required vars, never logs secrets
  - security-scan.yml: weekly pip-audit + npm audit
  - security.txt: /.well-known/security.txt with contact
  - 90-day security event retention cleanup + weekly security digest (50+ events per IP = action required)
- **Infrastructure (items 7, 14, 16, 19):**
  - Migration 010: security_events table with RLS
  - Supabase client timeout guidance, retry with 30s default timeout
  - Source code secret scan test (sk_live_, eyJhbGci, sbp_)
  - .gitignore: .env, .env.local, .env.production, *.pem, *.key, .vercel/

### Session 10b — 2026-04-13 (SUPPLEMENT BUILD)
- Built 5 intelligence supplement systems — ADDITIVE, no existing code modified
- 65 new tests (609 total), all green across 39 test suites
- **System 1 — Coaching Tendency Database:**
  - blueprints/coaching.py (NEW) — per-coach NBA + MLB tendencies, nightly update from game logs, shift detection (15%+ threshold on last 15 vs season baseline)
  - 12 NBA fields (pace, 3PT rate, ISO freq, PnR usage, rotation depth, late-game player, score-state lineups, second-unit patterns, redistribution profile, shot location, timeout tendency)
  - 10 MLB fields (starter hook, quick hook, bullpen philosophy, IBB rate, PH freq, bunts, closer-only, platoon, lineup consistency, challenge aggressiveness)
- **System 2 — Usage Redistribution Engine:**
  - blueprints/redistribution.py (NEW) — two-layer calculation (Layer A: minutes redistribution from historical player-out data + coaching rotation depth; Layer B: offensive system change from archetype shifts)
  - Uses coaching database, applies usage-efficiency tradeoff (-1.5% TS per +5% usage)
  - Three tiers: primary (>=0.20 boost, >=0.75 confidence), secondary (>=0.10, >=0.60), tertiary (>=0.05)
  - Auto-grades at 15%+ boost / 0.65+ confidence, formats 60-second absorption alerts
- **System 3 — Alt Line Scanner:**
  - Added to existing odds_scanner.py — auto-runs on A-grade props after slate scan
  - Pulls alt lines from odds_warehouse, calculates model probability via Bayesian norm_cdf
  - Real edge with vig on each alt, finds optimal (best EV/dollar)
  - Only recommends if alt edge exceeds standard by 3%+
- **System 4 — Unconventional Data Pipeline:**
  - blueprints/unconventional.py (NEW) — validation gate for non-traditional correlates
  - 500 instance minimum, Pearson r > 0.15, Bonferroni-corrected p-value
  - 5 tracked factors: altitude, contract year, referee crew history, travel distance (pre-validated), arena altitude
  - Factors only enter grading engine AFTER passing validation
- **System 5 — Player Evolution Alerting:**
  - Added to existing evolution.py — daily scan across multiple metrics simultaneously
  - NBA: usage_rate, assist_rate, three_pa_rate, fg_pct, minutes
  - MLB: k_rate, bb_rate, exit_velocity, hard_hit_pct, fb_velo
  - PLAYER_EVOLUTION_DETECTED when 2+ metrics show concurrent inflection (10%+ change, 15 game minimum)
  - Timestamped records in evolution_detections table, Evolution Watch content formatter
- **Migration 008:** coaching_tendencies, player_out_history, evolution_detections, unconventional_validations (all with indexes + RLS)
- **Integration:** 3 new blueprints registered in app.py (coaching_bp, redistribution_bp, unconventional_bp), evolution + odds_scanner extended with new endpoints