Add admin token override feature for user accounts

- Add tokenOverride field to token usage bucket
- Create POST /api/admin/accounts/tokens endpoint for setting manual token limits
- Update admin accounts page to display token usage and override status
- Add 'Set Tokens' button to manually override user token limits for the month
- Override takes precedence over plan-based limits when set

chat/public/admin-accounts.html

@@ -78,6 +78,7 @@
                   <th style="padding:12px 8px;">Renews</th>
                   <th style="padding:12px 8px;">Created</th>
                   <th style="padding:12px 8px;">Last login</th>
+                  <th style="padding:12px 8px;">Tokens</th>
                   <th style="padding:12px 8px;">Actions</th>
                 </tr>
               </thead>

chat/public/admin.js

@@ -1713,7 +1713,7 @@
     if (!state.accounts.length) {
       const row = document.createElement('tr');
       const cell = document.createElement('td');
-      cell.colSpan = 8;
+      cell.colSpan = 9;
       cell.textContent = 'No accounts found.';
       cell.className = 'muted';
       cell.style.padding = '12px';
@@ -1739,6 +1739,18 @@
         row.appendChild(cell);
       });
 
+      const tokenUsage = acct.tokenUsage || {};
+      const tokensUsed = tokenUsage.used || 0;
+      const tokensLimit = tokenUsage.limit || 0;
+      const tokenOverride = tokenUsage.tokenOverride;
+      const tokensDisplay = `${tokensUsed.toLocaleString()} / ${tokensLimit.toLocaleString()}${tokenOverride !== null && tokenOverride !== undefined ? ' (override)' : ''}`;
+      
+      const tokenCell = document.createElement('td');
+      tokenCell.style.padding = '10px 8px';
+      tokenCell.textContent = tokensDisplay;
+      tokenCell.title = tokenOverride !== null && tokenOverride !== undefined ? `Manual override: ${tokenOverride.toLocaleString()} tokens` : 'Plan-based limit';
+      row.appendChild(tokenCell);
+
       const actionsCell = document.createElement('td');
       actionsCell.style.padding = '10px 8px';
       actionsCell.style.display = 'flex';
@@ -1750,6 +1762,13 @@
       changeBtn.addEventListener('click', () => changePlan(acct));
       actionsCell.appendChild(changeBtn);
       
+      const tokensBtn = document.createElement('button');
+      tokensBtn.className = 'ghost';
+      tokensBtn.textContent = 'Set Tokens';
+      tokensBtn.title = 'Manually set token limit for this user';
+      tokensBtn.addEventListener('click', () => setTokens(acct));
+      actionsCell.appendChild(tokensBtn);
+      
       const deleteBtn = document.createElement('button');
       deleteBtn.className = 'danger';
       deleteBtn.textContent = 'Delete';
@@ -1830,6 +1849,46 @@
     }
   }
 
+  async function setTokens(acct) {
+    const tokenUsage = acct.tokenUsage || {};
+    const currentLimit = tokenUsage.limit || 0;
+    const hasOverride = tokenUsage.tokenOverride !== null && tokenUsage.tokenOverride !== undefined;
+    const currentOverride = hasOverride ? tokenUsage.tokenOverride : '';
+    
+    const promptMessage = `Set token limit for ${acct.email}\n\n` +
+      `Current plan: ${acct.plan || 'starter'}\n` +
+      `Current limit: ${currentLimit.toLocaleString()} tokens\n` +
+      `${hasOverride ? `Current override: ${currentOverride.toLocaleString()} tokens\n` : ''}\n` +
+      `Enter new token limit (0 to remove override, or a number to set manual limit):`;
+    
+    const tokenInput = prompt(promptMessage, currentOverride);
+    
+    if (tokenInput === null) return;
+    
+    const tokens = parseInt(tokenInput.trim(), 10);
+    if (isNaN(tokens) || tokens < 0) {
+      alert('Invalid token amount. Please enter a non-negative number.');
+      return;
+    }
+    
+    if (!confirm(`Are you sure you want to set ${acct.email}'s token limit to ${tokens.toLocaleString()}? This will override their plan-based limit for this month.`)) {
+      return;
+    }
+    
+    setStatus(`Updating token limit for ${acct.email}...`);
+    try {
+      await api('/api/admin/accounts/tokens', {
+        method: 'POST',
+        body: JSON.stringify({ userId: acct.id, tokens: tokens })
+      });
+      setStatus('Token limit updated successfully');
+      await loadAccounts();
+      setTimeout(() => setStatus(''), 3000);
+    } catch (err) {
+      setStatus(err.message, true);
+    }
+  }
+
   async function loadAccounts() {
     if (!el.accountsTable) return;
     setStatus('Loading accounts...');