Add a persistent hand history log to the Texas Hold'em dealer tool

Give the dealer a running record of resolved pots — hand number, total
pot, who got paid what, and the time — instead of losing that
information the moment the pot wizard closes. It's the kind of audit
trail a real dealer needs when a chip count gets disputed after the
fact.

- state.js tracks state.handNumber and state.handHistory (capped at 200
  entries) and persists both through the existing localStorage save/load
  path, with backfill defaults for tables saved before this change.
- potWizard.js now hands its final payouts back to the caller instead of
  discarding them once "Start Next Hand" is clicked.
- main.js records a history entry (skipping hands where nobody actually
  won anything) before advancing to the next hand, and wires up a "Clear
  history" control that also resets the hand counter.
- A new sidebar panel lists history entries newest-first; the header
  shows a running "Hand #N" badge next to the existing subtitle.

Verified via Playwright MCP: seated two players, resolved a pot, and
confirmed the header's hand counter incremented, the history panel
listed the payout, the entry survived a full page reload (localStorage
persistence), and Clear History reset both the log and the counter. No
console errors during the flow.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01C3NiiUDimoKDJ8GjC3KL3x

JoshHeaps.Net/Pages/Casino/TexasHoldem.cshtml

@@ -10,6 +10,7 @@
         <div id="holdemHeaderLeft">
             <h1>Texas Hold'em Dealer</h1>
             <p class="holdemSubtitle">Seat your players, track the action, split the pot.</p>
+            <span id="handCounterBadge" class="handCounterBadge">Hand #1</span>
         </div>
         <div id="holdemHeaderActions">
             <button id="nextHandBtn" class="holdemBtn" title="Move the button, small blind and big blind to the next occupied seat">Next Hand ⟳</button>
@@ -84,6 +85,15 @@
                     <textarea id="tableNotes" rows="4" placeholder="Anything else worth tracking — side bets, IOUs, running totals..."></textarea>
                 </div>
             </details>
+
+            <details class="sidebarPanel">
+                <summary>Hand History</summary>
+                <div class="panelBody">
+                    <div id="handHistoryList"></div>
+                    <p id="handHistoryEmptyHint" class="fieldHint">Resolved pots show up here as you play, in case a chip count is disputed later.</p>
+                    <button id="clearHistoryBtn" class="holdemBtn holdemBtnSmall holdemBtnDanger">Clear history</button>
+                </div>
+            </details>
         </aside>
     </div>
 </div>
@@ -156,6 +166,17 @@
     </div>
 </template>
 
+<template id="handHistoryRowTemplate">
+    <div class="handHistoryRow">
+        <div class="handHistoryRowHeader">
+            <span class="handHistoryHandNumber"></span>
+            <span class="handHistoryPot"></span>
+            <span class="handHistoryTime"></span>
+        </div>
+        <div class="handHistoryPayouts"></div>
+    </div>
+</template>
+
 <div id="potWizardOverlay" hidden>
     <div id="potWizardModal">
         <div class="potWizardHeader">