add catery input with hints

ccp/js/methodeditorcontroller.js

@@ -391,6 +391,11 @@ class CCPMethodEditorController extends HTMLElement{
                   <label class="form-label">Version</label>
                   <input name="version" class="form-control" type="text" required="required" value="${this.#current.version}"/>
                 </div>
+                <div class="col">
+                  <label class="form-label">Category</label>
+                  <input list="categoryhints" name="category" class="form-control" type="text" required="required" value="${this.getCurrentCategory()}"/>
+                  ${this.renderCategoryHints()}
+                </div>
               </div>
               <div class="mb-3">
                 <label class="form-label">Description</label>
@@ -739,6 +744,23 @@ class CCPMethodEditorController extends HTMLElement{
     `
   }
   
+  getCurrentCategory(){
+    if(this.#current){
+      const cats = this.#current.metadata.filter(md=>md.role === "category")
+      if(cats.length === 0) return "Uncategorized";
+      return cats[0].title
+    }else return "Uncategorized"
+  }
+  
+  renderCategoryHints(){
+    const cats = ["Uncategorized", this.getCurrentCategory()]
+    return `
+      <datalist id="categoryhints">
+        ${cats.map(c=>`<option value="${c}">${c}</option>`}
+      </datalist>
+    `
+  }
+  
   renderContexts(){
     return `
       <ul class="context_list">