fix: Macro panel manage-only (not auto-open), Trump-only auto-trade copy, store docs

SystemControl was rendered as two per-system panels (Trump / Macro) that both
flipped the SAME global auto_trade, and its copy claimed a "qualifying Macro
Vibes signal auto-opens a trade". Both are wrong: bot_engine.process_post
early-returns for System 2, so the auto_trade gate only ever fires for Trump
(System 1). Macro Vibes is manage-only — it never auto-opens.

- Macro (`system="btc"`) panel: replaced the misleading Auto-Trade ON/OFF
  toggle with a manage-only explainer (open on HL → /adopt via Telegram → bot
  manages exits) and a note that the Trump-page switch has no effect here.
- Trump (`system="trump"`) panel: relabeled the switch "TRUMP (System 1)" and
  rewrote all copy/status lines to say Trump-only auto-open (was "GLOBAL
  (Trump + BTC)" / "both Trump & BTC").
- CLAUDE.md: corrected "No global store (no Redux/Zustand)" — the app DOES use
  a small Zustand store (store/dashboard.ts / useDashboardStore); documented
  what it holds and the guidance to keep it small.

Note (not a bug): dashboard adopt/release is intentionally Telegram-only —
there are no positions/adopt|hl|release client calls and the UI correctly
points to the Telegram /adopt command. No dashboard wiring is "broken".

tsc + next build clean.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

CLAUDE.md

@@ -138,7 +138,11 @@ mutate the subscription.
 
 ## State management
 
-- **No global store** (no Redux/Zustand). Tree-local state + props.
+- **One small global store** — `store/dashboard.ts` (Zustand, `useDashboardStore`).
+  Holds cross-page UI/session state: selected post, chart asset/timeframe,
+  wallet address, subscription + bot-readiness flags, masked HL key hint, and
+  the live-price map. Everything else stays tree-local (state + props) — don't
+  grow this store into a catch-all; page-specific data belongs in the page.
 - **SWR-style cache** in `lib/cache.ts` for the API-heavy pages.
 - **WebSocket** singleton via `WsProvider` — used by `SignalMonitor` and
   live price tickers.