fix(pool): don't throw when max connections exceeded, create untracked connection instead

The hard limit caused 'Connection pool exhausted' errors in environments
where Database objects are held by long-lived references (e.g., PHPUnit
test classes). Instead of throwing, the pool now creates a connection
outside the pool when the limit is exceeded.

Author: Ibrahim BinAlshikh

WebFiori/Database/ConnectionPool.php

@@ -86,11 +86,9 @@ public function acquire(ConnectionInfo $info): Connection {
             $conn->close();
         }
 
-        // Check total limit
+        // Check total limit — if exceeded, create connection without pooling
         if ($this->getActiveCount() >= $this->maxTotal) {
-            throw new DatabaseException(
-                "Connection pool exhausted (max: {$this->maxTotal})"
-            );
+            return $this->createConnection($info);
         }
 
         // Create new connection

tests/WebFiori/Tests/Database/Common/ConnectionPoolTest.php

@@ -5,7 +5,6 @@
 use PHPUnit\Framework\TestCase;
 use WebFiori\Database\ConnectionInfo;
 use WebFiori\Database\ConnectionPool;
-use WebFiori\Database\DatabaseException;
 
 /**
  * Test cases for ConnectionPool.
@@ -113,17 +112,19 @@ public function testCloseAllDrainsPool() {
     /**
      * @test
      */
-    public function testMaxTotalEnforced() {
+    public function testMaxTotalExceededStillWorks() {
         $pool = ConnectionPool::getInstance();
         $pool->setMaxTotal(2);
         $info = $this->createMySQLConnectionInfo();
 
-        $pool->acquire($info);
-        $pool->acquire($info);
+        $conn1 = $pool->acquire($info);
+        $conn2 = $pool->acquire($info);
+        $conn3 = $pool->acquire($info);
 
-        $this->expectException(DatabaseException::class);
-        $this->expectExceptionMessage('Connection pool exhausted');
-        $pool->acquire($info);
+        // All connections work, but only 2 are tracked as active
+        $this->assertNotNull($conn3);
+        $this->assertTrue($conn3->isAlive());
+        $this->assertEquals(2, $pool->getActiveCount());
     }
 
     /**