Filter Accounts page to show only cash positions (asset, liability, investment)

- Hide income, expense, and equity accounts from Accounts view — they are
  internal bookkeeping managed via budget import and system operations
- Restrict Add Account form to asset and liability types plus investments
- Update summary cards to show Cash on Hand, Investments, Liabilities, Net Position
- Reports (Income Statement, Balance Sheet, Budget vs Actual, etc.) are unchanged
  and continue to use all account types from their own API endpoints

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

frontend/src/pages/accounts/AccountsPage.tsx

@@ -45,12 +45,12 @@ const INVESTMENT_TYPES = ['inv_cd', 'inv_money_market', 'inv_treasury', 'inv_sav
 
 const isInvestmentType = (t: string) => INVESTMENT_TYPES.includes(t);
 
+// Only show account types that represent real cash / financial positions.
+// Income, expense, and equity accounts are internal bookkeeping — managed via
+// budget import and system operations, not manually on this page.
 const ACCOUNT_TYPE_OPTIONS = [
-  { value: 'asset', label: 'Asset' },
+  { value: 'asset', label: 'Asset (Bank Account)' },
   { value: 'liability', label: 'Liability' },
-  { value: 'equity', label: 'Equity' },
-  { value: 'income', label: 'Income' },
-  { value: 'expense', label: 'Expense' },
   { value: '__divider', label: '── Investment Accounts ──', disabled: true },
   { value: 'inv_cd', label: 'Investment — CD' },
   { value: 'inv_money_market', label: 'Investment — Money Market' },
@@ -161,7 +161,7 @@ export function AccountsPage() {
       accountNumber: '',
       name: '',
       description: '',
-      accountType: 'expense',
+      accountType: 'asset',
       fundType: 'operating',
       is1099Reportable: false,
       initialBalance: 0,
@@ -390,9 +390,13 @@ export function AccountsPage() {
   };
 
   // ── Filtering ──
-  // Hide system accounts (auto-created equity offsets) from the accounts view
+  // Only show asset and liability accounts — these represent real cash positions.
+  // Income, expense, and equity accounts are internal bookkeeping managed via
+  // budget import, transactions, and system operations.
+  const VISIBLE_ACCOUNT_TYPES = ['asset', 'liability'];
   const filtered = accounts.filter((a) => {
     if (a.is_system) return false;
+    if (!VISIBLE_ACCOUNT_TYPES.includes(a.account_type)) return false;
     if (search && !a.name.toLowerCase().includes(search.toLowerCase()) && !String(a.account_number).includes(search)) return false;
     if (filterType && a.account_type !== filterType) return false;
     if (filterFund && a.fund_type !== filterFund) return false;
@@ -407,10 +411,11 @@ export function AccountsPage() {
   const reserveInvestments = investments.filter((i) => i.fund_type === 'reserve' && i.is_active);
 
   // ── Summary cards ──
-  // Exclude system accounts from summaries to avoid double-counting
+  // Only show asset and liability totals — these are real cash positions.
+  // Income/expense/equity are internal bookkeeping and don't belong here.
   const totalsByType = accounts.reduce(
     (acc, a) => {
-      if (a.is_active && !a.is_system) {
+      if (a.is_active && !a.is_system && VISIBLE_ACCOUNT_TYPES.includes(a.account_type)) {
         acc[a.account_type] = (acc[a.account_type] || 0) + parseFloat(a.balance || '0');
       }
       return acc;
@@ -418,14 +423,17 @@ export function AccountsPage() {
     {} as Record<string, number>,
   );
 
-  // Include investment principal in the asset totals
+  // Include investment current value in a separate summary card
   const investmentTotal = investments
     .filter((i) => i.is_active)
     .reduce((s, i) => s + parseFloat(i.current_value || i.principal || '0'), 0);
   if (investmentTotal > 0) {
-    totalsByType['asset (investments)'] = investmentTotal;
+    totalsByType['investments'] = investmentTotal;
   }
 
+  // Net position = assets + investments - liabilities
+  const netPosition = (totalsByType['asset'] || 0) + investmentTotal - (totalsByType['liability'] || 0);
+
   // ── Adjust modal: current balance from trial balance ──
   const adjustCurrentBalance = adjustingAccount
     ? parseFloat(
@@ -461,17 +469,27 @@ export function AccountsPage() {
         </Group>
       </Group>
 
-      <SimpleGrid cols={{ base: 2, sm: 5 }}>
-        {Object.entries(totalsByType).map(([type, total]) => (
-          <Card withBorder p="xs" key={type}>
-            <Text size="xs" c="dimmed" tt="capitalize">
-              {type}
-            </Text>
-            <Text fw={700} size="sm" c={accountTypeColors[type]}>
-              {fmt(total)}
-            </Text>
+      <SimpleGrid cols={{ base: 2, sm: 4 }}>
+        <Card withBorder p="xs">
+          <Text size="xs" c="dimmed">Cash on Hand</Text>
+          <Text fw={700} size="sm" c="green">{fmt(totalsByType['asset'] || 0)}</Text>
+        </Card>
+        {investmentTotal > 0 && (
+          <Card withBorder p="xs">
+            <Text size="xs" c="dimmed">Investments</Text>
+            <Text fw={700} size="sm" c="teal">{fmt(investmentTotal)}</Text>
+          </Card>
+        )}
+        {(totalsByType['liability'] || 0) > 0 && (
+          <Card withBorder p="xs">
+            <Text size="xs" c="dimmed">Liabilities</Text>
+            <Text fw={700} size="sm" c="red">{fmt(totalsByType['liability'] || 0)}</Text>
+          </Card>
+        )}
+        <Card withBorder p="xs">
+          <Text size="xs" c="dimmed">Net Position</Text>
+          <Text fw={700} size="sm" c={netPosition >= 0 ? 'green' : 'red'}>{fmt(netPosition)}</Text>
         </Card>
-        ))}
       </SimpleGrid>
 
       <Group>
@@ -485,7 +503,10 @@ export function AccountsPage() {
         <Select
           placeholder="Type"
           clearable
-          data={['asset', 'liability', 'equity', 'income', 'expense']}
+          data={[
+            { value: 'asset', label: 'Asset' },
+            { value: 'liability', label: 'Liability' },
+          ]}
           value={filterType}
           onChange={setFilterType}
           w={150}
@@ -616,11 +637,8 @@ export function AccountsPage() {
                     label="Account Type"
                     required
                     data={[
-                      { value: 'asset', label: 'Asset' },
+                      { value: 'asset', label: 'Asset (Bank Account)' },
                       { value: 'liability', label: 'Liability' },
-                      { value: 'equity', label: 'Equity' },
-                      { value: 'income', label: 'Income' },
-                      { value: 'expense', label: 'Expense' },
                     ]}
                     {...form.getInputProps('accountType')}
                   />