Add category typeahead with autocomplete suggestions

Changed the category input to a typeahead component in both Add Feature and
Edit Feature dialogs. The component suggests existing categories from
features and allows typing new ones. Categories are saved to feature_list.json.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.automaker/feature_list.json

@@ -15,13 +15,32 @@
     "category": "Kanban",
     "description": "change category to a typeahead and save the category of the feature inside the feature_list.json",
     "steps": [],
-    "status": "backlog"
+    "status": "verified"
   },
   {
     "id": "feature-1765252262937-bt0wotam8",
     "category": "Kanban",
     "description": "Deleting a feature should show a confirm dialog",
     "steps": [],
-    "status": "in_progress"
+    "status": "verified"
+  },
+  {
+    "id": "feature-1765252502536-t11kphnca",
+    "category": "Kanban",
+    "description": "If i have the output of a feature open while it's in progress, then it gets verified, automatically close the output modal",
+    "steps": [
+      "1. drag YOLO11 to in progress",
+      "2. open the output modal",
+      "3. wait until it is moved to verified",
+      "4. assert modal is hidden"
+    ],
+    "status": "backlog"
+  },
+  {
+    "id": "feature-1765254432072-bqk25kivv",
+    "category": "Automode",
+    "description": "Add a concurrency slider left of automode so I can specify how many max agents should be running at one time.  if we are at max, do not pull over more tasks from the backlog",
+    "steps": [],
+    "status": "backlog"
   }
 ]