feat: implement Part D and E from FIXPLAN

- D1/D2/D2c: Added TraderTraits entity, TraderTraitCalculator, Market Return Metrics (MedianWin, AvgWin, etc.), and trait filters
- D3: Implemented HF-Trader Tiering via IngestMode (Full, Aggregated, SnapshotOnly) and updated TradeHistoryWorker to respect tiers
- E1-E5: Added MasterStatus to Trader, TraderWindowMetrics for rolling analytics, Fingerprint metrics (PriceBandProfile, P50/P90), Copyability aggregates (Volume, Drift, Edge)
- E6: Implemented GET /api/traders/{id}/profile and GET /api/traders/correlation
- Replaced FIXPLAN-2026-07-09.md with FIXPLAN-TODO.md and FIXPLAN-DONE.md
- Cleaned up API docs and plan to use generic terms (removed hardcoded PolyTrader references)
- Added respective EF Core Migrations

src/Predictalytics.Api/wwwroot/index.html

@@ -155,6 +155,10 @@
                             <span style="font-size:13px; font-weight:600;">Copyability ></span>
                             <input type="number" id="filterCopyabilityMin" class="platform-select" style="width:70px" placeholder="%" onchange="loadTraders()">
                         </div>
+                        
+                        <select id="filterTrait" class="platform-select" onchange="loadTraders()">
+                            <option value="">All Traits</option>
+                        </select>
 
                         <label style="display:flex; align-items:center; gap:8px; font-weight:600; cursor:pointer; background:var(--bg-surface); padding:8px 12px; border-radius:6px; border:1px solid var(--border);">
                             <input type="checkbox" id="chk-highly-copyable" onchange="loadTraders()"> Highly Copyable
@@ -343,6 +347,10 @@
                                 <div class="stat-label">Strategy</div>
                                 <div class="stat-value" id="td-strategy">—</div>
                             </div>
+                            <div class="stat-group" id="td-traits-container" style="display:none; margin-top: 12px; border-top: 1px solid var(--border); padding-top: 12px;">
+                                <div class="stat-label">Algorithmic Traits</div>
+                                <div class="stat-value small" id="td-traits" style="display:flex; flex-wrap:wrap; gap:4px; margin-top:6px;"></div>
+                            </div>
                         </div>
                     </div>
                     <div class="detail-main">
@@ -364,6 +372,9 @@
                                 <div class="metric-card"><div class="metric-label">Est. Bankroll</div><div class="metric-value" id="td-bankroll">---</div></div>
                                 <div class="metric-card"><div class="metric-label">Quality Edge</div><div class="metric-value" id="td-quality-score">---</div></div>
                                 <div class="metric-card"><div class="metric-label">Copyability</div><div class="metric-value" id="td-copyability-score">---</div></div>
+                                <div class="metric-card"><div class="metric-label">Med. Win/Loss</div><div class="metric-value" id="td-median-win-loss" style="font-size:0.9em;">---</div></div>
+                                <div class="metric-card"><div class="metric-label">Profit Factor</div><div class="metric-value" id="td-profit-factor">---</div></div>
+                                <div class="metric-card"><div class="metric-label">Expectancy / Trade</div><div class="metric-value" id="td-expectancy">---</div></div>
                                 <div class="metric-card accent">
                                     <div class="metric-value" id="td-score">---</div>
                                 </div>