feat: Specialist Desks — per asset-class fundamental configs + report catalogue

- 7 pre-seeded desks (Forex, Metals, Agri, Energy, Indices, Crypto, Bonds)
  each with default fundamental drivers, macro regime sensitivities and
  price delta thresholds
- Global report catalogue (specialist_reports) fully manual — add any report
  including non-calendar ones (e.g. Cocoa Grinding Report, ICCO)
- Many-to-many report ↔ desk linking (report_desk_links table)
- 12 default reports pre-seeded (COT, EIA, WASDE, FOMC, ECB, CPI, NFP…)
- AI scorer injects SPECIALIST DESK context block for asset classes present
  in each scoring batch (upcoming reports, key drivers, regime sensitivity)
- /specialist-desks page: desk sidebar + fundamentals editor + macro
  sensitivity tag editor + reports tab + global reports catalogue + modal
  to create/edit any report with desk assignment

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/App.tsx

@@ -22,6 +22,7 @@ import SystemLogs from './pages/SystemLogs'
 import VaRAnalysis from './pages/VaRAnalysis'
 import PositionHistory from './pages/PositionHistory'
 import InstitutionalReports from './pages/InstitutionalReports'
+import SpecialistDesks from './pages/SpecialistDesks'
 import { useCycleWatcher } from './hooks/useApi'
 
 function GlobalWatcher() {
@@ -59,6 +60,7 @@ export default function App() {
             <Route path="/position-history" element={<PositionHistory />} />
             <Route path="/logs" element={<SystemLogs />} />
             <Route path="/institutional" element={<InstitutionalReports />} />
+            <Route path="/specialist-desks" element={<SpecialistDesks />} />
           </Routes>
         </main>
       </div>