feat(panel-view): add typed readouts, pills, manifests, facts, and sections with factory methods.

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## 0.1.3 Under development
 
+- feat(panel-view): add typed readouts, pills, manifests, facts, and sections with factory methods.
+
 ## 0.1.2 September 13, 2026
 
 - fix(security): reject link targets a browser would normalize, and move exception messages to the `Exception\Message` enum.

src/Exception/PanelViewMessage.php

@@ -27,6 +27,13 @@ enum PanelViewMessage: string
      */
     case COLUMN_STYLE_KEY_INVALID = 'Debug panel column styles must be keyed by an existing column index.';
 
+    /**
+     * Indicates that an entry passed to a composite block was not built by the matching factory.
+     *
+     * Format: "Debug panel %s entries must be built with PanelView::%s()."
+     */
+    case ENTRY_INVALID = 'Debug panel %s entries must be built with PanelView::%s().';
+
     /**
      * Indicates that an inline value is neither a scalar, `null`, nor a shape this class produces.
      *