chore: minor cosmetic changes

Author: e0ipso

src/Capability/Formatter/ResourceResultFormatter.php

@@ -46,7 +46,7 @@ final class ResourceResultFormatter
      * - array with 'text' key: Used as text content
      * - SplFileInfo: Read and converted to blob
      * - array: Converted to JSON if MIME type is application/json or contains 'json'
-     *          For other MIME types, will also convert to JSON
+     *          For other MIME types, will try to convert to JSON with a warning
      */
     public function format(mixed $readResult, string $uri, ?string $mimeType = null, mixed $meta = null): array
     {

src/Capability/Registry/ResourceReference.php

@@ -51,7 +51,7 @@ public function __construct(
      * - array with 'text' key: Used as text content
      * - SplFileInfo: Read and converted to blob
      * - array: Converted to JSON if MIME type is application/json or contains 'json'
-     *          For other MIME types, will also convert to JSON
+     *          For other MIME types, will try to convert to JSON with a warning
      */
     public function formatResult(mixed $readResult, string $uri, ?string $mimeType = null): array
     {

src/Capability/Registry/ResourceTemplateReference.php

@@ -84,7 +84,7 @@ public function extractVariables(string $uri): array
      * - array with 'text' key: Used as text content
      * - SplFileInfo: Read and converted to blob
      * - array: Converted to JSON if MIME type is application/json or contains 'json'
-     *          For other MIME types, will also convert to JSON
+     *          For other MIME types, will try to convert to JSON with a warning
      */
     public function formatResult(mixed $readResult, string $uri, ?string $mimeType = null): array
     {

src/Capability/Registry/ToolReference.php

@@ -12,6 +12,7 @@
 namespace Mcp\Capability\Registry;
 
 use Mcp\Capability\Formatter\ToolResultFormatter;
+use Mcp\Schema\Content\Content;
 use Mcp\Schema\Tool;
 
 /**
@@ -47,7 +48,7 @@ public function __construct(
      *
      * @param mixed $toolExecutionResult the raw value returned by the tool's PHP method
      *
-     * @return \Mcp\Schema\Content\Content[] the content items for CallToolResult
+     * @return Content[] the content items for CallToolResult
      *
      * @throws \JsonException if JSON encoding fails for non-Content array/object results
      */
@@ -71,7 +72,7 @@ public function extractStructuredContent(mixed $toolExecutionResult): ?array
             return $toolExecutionResult;
         }
 
-        if (\is_object($toolExecutionResult) && !($toolExecutionResult instanceof \Mcp\Schema\Content\Content)) {
+        if (\is_object($toolExecutionResult) && !($toolExecutionResult instanceof Content)) {
             $jsonResult = json_encode(
                 $toolExecutionResult,
                 \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES | \JSON_UNESCAPED_UNICODE | \JSON_THROW_ON_ERROR | \JSON_INVALID_UTF8_SUBSTITUTE