Board: t21 to Review with its report; new tasks t29, t33-t36; board updates

- t21 report and subtasks ticked.
- New Todo tasks: t33 telling solid ground from loose grains, t34 nozzle blow reach, t35
  diagonal screw tubes, t36 diagonal wall blocks with a sloped face; t29 added on the board.
- The owner's board edits since the last board commit.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.kandown/kandown.json

@@ -1,9 +1,12 @@
 {
   "ui": {
     "language": "en",
-    "theme": "auto",
+    "theme": "dark",
     "skin": "kandown",
-    "font": "inter"
+    "font": "inter",
+    "background": "solid",
+    "onboardingCompleted": true,
+    "categoryChips": true
   },
   "agent": {
     "suggestFollowUp": false,
@@ -21,7 +24,7 @@
     }
   },
   "workflow": {
-    "active": "kandown-standard",
+    "active": "guided-feature",
     "skills": [],
     "trackingCadence": "balanced"
   },
@@ -35,7 +38,13 @@
     ],
     "defaultPriority": "P3",
     "defaultOwnerType": "human",
-    "stackDefaultState": "collapsed",
+    "columnColors": {
+      "backlog": "red",
+      "todo": "blue",
+      "in progress": "orange",
+      "review": "violet",
+      "done": "yellow"
+    },
     "columnMeta": {
       "Backlog": {
         "role": "backlog",
@@ -58,14 +67,22 @@
         "instructions": "Only accept work whose criteria and required review are satisfied. Preserve the completion report and evidence."
       }
     },
-    "columnColors": {
-      "done": "yellow"
-    }
+    "stackDefaultState": "collapsed"
   },
   "tui": {
     "defaultView": "list",
     "showDetailPane": true,
-    "listSort": "status"
+    "listSort": "status",
+    "listSortDir": "asc",
+    "columns": {
+      "age": true,
+      "status": true,
+      "priority": true,
+      "owner": true,
+      "deps": true,
+      "tags": false,
+      "assignee": true
+    }
   },
   "fields": {
     "priority": true,
@@ -77,11 +94,14 @@
   },
   "notifications": {
     "browser": false,
-    "sound": false,
+    "sound": true,
     "soundId": "soft",
-    "statusChanges": true,
-    "taskEdits": true,
+    "statusChanges": false,
+    "taskEdits": false,
     "subtaskCompletions": true,
     "editDebounceMs": 2000
+  },
+  "extensions": {
+    "restricted": true
   }
 }