S6 (a1): display — the full picture under the grammar

- specs/ROW-GRAMMAR.md: the row grammar law (slot order, color law, mark
  law, mobile stacking, no-truncation), locked by tests/unit/rowGrammar.
  StatStrip violations fixed: MovementChip before the grade (market
  context before model output); ViabilityChips after the archetype
  (identity is one contiguous run).
- Line-movement sparklines: intradayRefreshService.trackHistory captures
  real {t,line} points per grade (seeded with the lock, deduped when
  flat, capped 24) inside the snapshot write-back; StatStrip.LineSparkline
  renders at >=3 points (green toward / amber against / dim flat).
- Last-10 dot strips: services/last10Dots (streaksService accessors) ->
  /api/snapshot/:sport attaches last10_dots from rosterlogs:{sport};
  StatStrip.DotStrip renders vs the LOCKED line, newest first.
- CLV distribution: getModelAggregate emits clv_distribution (7 signed
  buckets, outliers clamped) only past the centralized n>=20 gate;
  ledger MODEL header renders the bar strip.
- Global search: SearchModal (cmd-K via GlobalHosts + window.__search),
  players via /api/players/search per sport + static lib/teams.js
  (soccer deliberately absent); Nav search icon + Search first in the
  mobile More sheet. Explore tab untouched.
- Landing LCP: fade-up floored at opacity .6 (hero h1 contentful on
  first frame, S33 visible-floor rule) + IBM Plex Mono preload:false
  (4 decorative font files off the slow-4G critical path).

2654 -> 2698 tests (226 suites) green; web build exit 0.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

BACKEND_HANDOFF.md

@@ -207,6 +207,24 @@ The system's track record — settled grades vs real results. Written by
 'push', actual:number }` once the game is final. `AccuracyBadge` +
 `StatStrip.OutcomeChip` render these. Frontend proxy: `web/src/app/api/accuracy`.
 
+### S6 (A1 board) — display enrichments on the same payloads
+- `GET /api/snapshot/:sport` grades may also carry:
+  - `last10_dots: boolean[]` — last ≤10 games vs the LOCKED line, newest
+    first (server-side from `rosterlogs:{sport}` via `services/last10Dots`).
+    Absent when there's no real log / no accessor for the stat.
+  - `history: [{ t: string, line: number }]` — REAL captured line points
+    from the intraday refresh (seeded with the locked line, deduped when
+    flat, capped 24). The StatStrip sparkline renders only at ≥3 points.
+  `slateAdapter.buildPlayerStripsFromProps` threads both onto `StripProp`
+  (`last10Dots` / `history`); `StatStrip.DotStrip` + `LineSparkline` render.
+- `GET /api/ledger/model` `aggregate` may carry `clv_distribution:
+  [{ label, min, max, side:'faded'|'flat'|'beat', count }]` — seven ordered
+  buckets over settled signed CLV ([-2,-1) … (1,2], outliers clamped into
+  the edge buckets). **null below the n≥20 gate** (the gate lives in
+  `getModelAggregate`, nowhere else). Ledger MODEL header renders the strip.
+- Global search: `window.__search()` opens the ⌘K SearchModal (players via
+  `/api/players/search` per sport; teams from the static `web/src/lib/teams.js`).
+
 ## 8. Public ledger profiles (`src/routes/profiles.js`, A1 Session 10)
 
 Strava-for-betting v1. Table `public_profiles` (migration 022 — apply