refactor(schema): drop ClickHouse PartitionType::Range sentinel

ClickHouse only uses partitionExpression — the PartitionType enum is
meaningless for it. Gate the partition emission on the expression
itself instead of flipping a Range sentinel just to satisfy a
non-null check.

Author: abnegate

src/Query/Schema/ClickHouse.php

@@ -212,7 +212,7 @@ public function compileCreate(Table $table, bool $ifNotExists = false): Statemen
             . ' (' . \implode(', ', $columnDefs) . ')'
             . ' ENGINE = ' . $this->compileEngine($engine, $table->engineArgs);
 
-        if ($table->partitionType !== null) {
+        if ($table->partitionExpression !== '') {
             $sql .= ' PARTITION BY ' . $table->partitionExpression;
         }
 

src/Query/Schema/Table/ClickHouse.php

@@ -6,7 +6,6 @@
 use Utopia\Query\Schema\ClickHouse\Engine;
 use Utopia\Query\Schema\Column;
 use Utopia\Query\Schema\ColumnType;
-use Utopia\Query\Schema\PartitionType;
 use Utopia\Query\Schema\Table;
 
 class ClickHouse extends Table
@@ -310,9 +309,7 @@ public function settings(array $settings): static
      */
     public function partitionBy(string $expression): static
     {
-        $this->partitionType = PartitionType::Range;
         $this->partitionExpression = $expression;
-        $this->partitionCount = null;
 
         return $this;
     }