docs(examples): classify full htmx pattern catalog

Extend the html_examples gallery README to cover every htmx UI example slug exactly, marking each as implemented, deferred, integration-owned, or refused. Add a test that guards the full slug matrix while keeping the implemented gallery focused on the first CRUD/form/search/load slice.

req: htmx_equivalents/001

req: htmx_equivalents/002

req: examples/001

examples/html_examples/src/main.rs

@@ -482,6 +482,46 @@ mod tests {
         )
     }
 
+    #[test]
+    fn readme_maps_every_htmx_example_slug() {
+        let readme = include_str!("../README.md");
+        for slug in [
+            "click-to-edit",
+            "bulk-update",
+            "click-to-load",
+            "delete-row",
+            "edit-row",
+            "lazy-load",
+            "inline-validation",
+            "infinite-scroll",
+            "active-search",
+            "progress-bar",
+            "value-select",
+            "animations",
+            "file-upload",
+            "file-upload-input",
+            "reset-user-input",
+            "dialogs",
+            "modal-uikit",
+            "modal-bootstrap",
+            "modal-custom",
+            "tabs-hateoas",
+            "tabs-javascript",
+            "keyboard-shortcuts",
+            "sortable",
+            "update-other-content",
+            "confirm",
+            "async-auth",
+            "web-components",
+            "move-before",
+        ] {
+            assert!(
+                readme.contains(&format!("`{slug}`")),
+                "missing htmx example slug {slug}"
+            );
+        }
+    }
+
     #[tokio::test]
     async fn gallery_covers_core_html_patterns_with_generated_resources() {
         let state = Arc::new(GalleryState::seeded());