added ability to add exchanges and a custom delete exchange dialog

apps/web-api/src/routes/exchange.routes.ts

@@ -714,6 +714,98 @@ exchangeRoutes.get('/provider-exchanges/unmapped/:provider', async c => {
   }
 });
 
+// Create new exchange
+exchangeRoutes.post('/', async c => {
+  try {
+    const body = await c.req.json();
+    const postgresClient = getPostgreSQLClient();
+
+    const { code, name, country, currency, active = true } = body;
+
+    if (!code || !name || !country || !currency) {
+      return c.json(
+        {
+          success: false,
+          error: 'Missing required fields: code, name, country, currency',
+        },
+        400
+      );
+    }
+
+    // Validate currency is 3 characters
+    if (currency.length !== 3) {
+      return c.json(
+        {
+          success: false,
+          error: 'Currency must be exactly 3 characters (e.g., USD, EUR, CAD)',
+        },
+        400
+      );
+    }
+
+    // Validate country is 2 characters
+    if (country.length !== 2) {
+      return c.json(
+        {
+          success: false,
+          error: 'Country must be exactly 2 characters (e.g., US, CA, GB)',
+        },
+        400
+      );
+    }
+
+    const query = `
+      INSERT INTO exchanges (code, name, country, currency, active, visible)
+      VALUES ($1, $2, $3, $4, $5, true)
+      RETURNING *
+    `;
+
+    const result = await postgresClient.query(query, [
+      code.toUpperCase(),
+      name,
+      country.toUpperCase(),
+      currency.toUpperCase(),
+      active,
+    ]);
+
+    logger.info('Exchange created', {
+      exchangeId: result.rows[0].id,
+      code,
+      name,
+    });
+
+    return c.json(
+      {
+        success: true,
+        data: result.rows[0],
+        message: 'Exchange created successfully',
+      },
+      201
+    );
+  } catch (error) {
+    logger.error('Failed to create exchange', { error });
+
+    // Handle unique constraint violations
+    if (error instanceof Error && error.message.includes('duplicate key')) {
+      return c.json(
+        {
+          success: false,
+          error: 'Exchange with this code already exists',
+        },
+        409
+      );
+    }
+
+    return c.json(
+      {
+        success: false,
+        error: error instanceof Error ? error.message : 'Unknown error',
+      },
+      500
+    );
+  }
+});
+
 // Get exchange statistics
 exchangeRoutes.get('/stats/summary', async c => {
   try {