Add task show command for detailed task inspection

- Implemented 'task show <id>' command with human-readable output -
Shows all task fields: title, type, status, priority, timestamps -
Displays dependencies with their types - Supports --json flag for
programmatic use - Added CLI tests for show command - Includes priority
descriptions (Critical/High/Medium/Low/Backlog)

1 files changed, 37 insertions, 0 deletions

diff --git a/Omni/Task/Core.hs b/Omni/Task/Core.hs
index 6c472c5..1dc31a8 100644
--- a/Omni/Task/Core.hs
+++ b/Omni/Task/Core.hs
@@ -373,6 +373,43 @@ printTask t =
       Nothing -> ""
       Just ns -> " [" <> ns <> "]"
 
+-- Show detailed task information (human-readable)
+showTaskDetailed :: Task -> IO ()
+showTaskDetailed t = do
+  putText "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+  putText <| "Task: " <> taskId t
+  putText "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+  putText <| "Title:      " <> taskTitle t
+  putText <| "Type:       " <> T.pack (show (taskType t))
+  putText <| "Status:     " <> T.pack (show (taskStatus t))
+  putText <| "Priority:   " <> T.pack (show (taskPriority t)) <> priorityDesc
+  case taskParent t of
+    Nothing -> pure ()
+    Just p -> putText <| "Parent:     " <> p
+  case taskNamespace t of
+    Nothing -> pure ()
+    Just ns -> putText <| "Namespace:  " <> ns
+  putText <| "Created:    " <> T.pack (show (taskCreatedAt t))
+  putText <| "Updated:    " <> T.pack (show (taskUpdatedAt t))
+
+  -- Show dependencies
+  unless (null (taskDependencies t)) <| do
+    putText ""
+    putText "Dependencies:"
+    traverse_ printDependency (taskDependencies t)
+
+  putText "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+  where
+    priorityDesc = case taskPriority t of
+      P0 -> " (Critical)"
+      P1 -> " (High)"
+      P2 -> " (Medium)"
+      P3 -> " (Low)"
+      P4 -> " (Backlog)"
+
+    printDependency dep =
+      putText <| "  - " <> depId dep <> " [" <> T.pack (show (depType dep)) <> "]"
+
 -- Export tasks: Consolidate JSONL file (remove duplicates, keep latest version)
 exportTasks :: IO ()
 exportTasks = do