Phase 5: alert subscriptions UI + multiple watchlists + queue fixes

UI:
- /alerts page: event history with acknowledge, subscription create/manage with toggle
- /admin/smtp: SMTP config form (host, port, auth, test)
- Watchlist sidebar: dropdown selector for multiple watchlists, create/delete
- Sidebar: alerts count badge, SMTP link under admin
- Mobile tab nav: alerts tab added
- Client trpc.ts: all new API methods + types

Backend:
- watchlists.listByWatchlist procedure + listSymbolsByWatchlist repo fn
- yfinance min-interval 1500->2000ms to reduce Edge 429s
- Fixed e.date.slice error in yfinance-adjustments with typeof guard
- Removed defunct BITF from watchlist+queue
- Cleared 83 failed + 12 backoff queue jobs

Docs:
- FUNCTIONAL_DESIGN.md: alerts + multiple watchlists + SMTP documented
- TECH_DESIGN.md: new modules, tRPC procs, routes updated

docs/FUNCTIONAL_DESIGN.md

@@ -1,6 +1,6 @@
 # Investor Flow — Functional Design (as built)
 
-**Audit date:** 2026-07-18  
+**Audit date:** 2026-07-23  
 **Source of truth for status:** this file + code under `app/`. Older slice SPECs, HANDOFF.md, and Automaton WORKFLOW.md are historical.  
 **Product intent:** Beginner-first multi-tenant educational research terminal for conviction investing (not day trading). Legal posture: educational publisher (ADR-0007).
 
@@ -37,6 +37,7 @@
 | Surface | Route | Status | Data path |
 |---------|-------|--------|-----------|
 | Symbol overview | `/` | **Live** | `market.snapshot`, company meta, X feed, collapsible filings + options |
+| Multiple watchlists | sidebar | **Live** | Create/delete/rename/reorder, dropdown selector in sidebar, per-watchlist symbols |
 | Charts | `/chart-lab` | **Live** | candles, indicators, institutional buy markers |
 | Institutional dashboard | `/institutional` | **Live** | dashboard rollup, flow, insider stream, filings; Q-o-Q / M-o-M |
 | Filings | `/filings` | **Live** | EDGAR index + 13F + Form 4 detail |
@@ -94,9 +95,12 @@
 
 | Capability | Status | Notes |
 |------------|--------|-------|
-| Alert list / ack / unacked count | **Live** | Used on mobile + rotation alert chip |
-| Rotation signal → alert create | **Live** | `market.rotationCheckForAlert` |
-| Full hybrid AlertEngine (Form4, thesis, cluster, halt…) | **Partial** | Engine types/tests exist; not all event producers wired continuously |
+| Alert list / ack / unacked count | **Live** | `/alerts` page with event history + subscription management |
+| Alert subscriptions (create/list/update/delete) | **Live** | Per-user with ticker-level / list-level / global inheritance |
+| Alert producers: informed_buy, informed_sell | **Live** | Insider tx comparison state, batched every 10 min |
+| Alert producer: new_13da | **Live** | New 13D/13G filing detection, batched every 10 min |
+| Alert producers: 7 more types (rotation, regime, conviction, thesis, cluster, drawdown, asymmetry) | **Stub** | Engine types exist; producers not wired |
+| Email delivery (SMTP) | **Live** | Nodemailer, admin SMTP config page, rate limit 1/hr per type/symbol/user |
 | SSE push | **Missing** | Design called for SSE; poll/list only |
 | Mobile companion `/mobile` | **Live (thin)** | Auth, holdings glance, unacked alerts — not full M19 job A vision |
 
@@ -110,6 +114,7 @@
 | SEC queue fetch + lint holders/insiders + data quality | **Live** |
 | X credentials, accounts, prune | **Live** |
 | FRED key | **Live** |
+| SMTP config (host, port, auth, test) | **Live** | Admin page at `/admin/smtp` |
 | Audit log | **Live** |
 | Server restart control | **Live** |
 | GDPR export | **Backend-ready** (admin API) |
@@ -180,7 +185,7 @@ Unchanged from domain model / ADRs:
 | P2 | Derisking + thesis monitor product surfaces | Process depth |
 | P2 | Options convexity sleeve UI | M17 incomplete |
 | P3 | Reports UI | Export pedagogy |
-| P3 | Schema cleanup (duplicate `strategies` DDL) | Maintainability |
+| P3 | Wire remaining 7 alert producers | rotation, regime, conviction, thesis, cluster, drawdown, asymmetry |
 | P3 | SSE alerts / continuous event producers | Ops polish |
 | P3 | Full LLM Gateway as designed | Provenance enforcement completeness |