Use Omni.Namespace for validated namespace arguments

Updated namespace handling to use the Omni.Namespace module: - Import
Omni.Namespace in Task CLI - Parse and validate namespace strings
using fromHaskellModule - Convert to proper path format using toPath -
Ensures namespaces are well-formed (e.g., Omni/Task -> Omni/Task.hs)

Example:
  task create "Fix bug" project --namespace="Omni/Task" # Creates
  task with validated namespace Omni/Task.hs

This provides type safety and ensures all task namespaces correspond
to actual code namespaces in the monorepo.

Amp-Thread-ID:
https://ampcode.com/threads/T-85f4ee29-a529-4f59-ac6f-6ffec75b6a56
Co-authored-by: Amp <amp@ampcode.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/Omni/Task.hs b/Omni/Task.hs
index 808e73f..2f3ec6f 100644
--- a/Omni/Task.hs
+++ b/Omni/Task.hs
@@ -9,6 +9,7 @@ module Omni.Task where
 import Alpha
 import qualified Data.Text as T
 import qualified Omni.Cli as Cli
+import qualified Omni.Namespace as Namespace
 import Omni.Task.Core
 import qualified Omni.Test as Test
 import System.Directory (doesFileExist, removeFile)
@@ -80,7 +81,11 @@ move args
         Just depStr -> pure <| T.splitOn "," (T.pack depStr)
       namespace <- case Cli.getArg args (Cli.longOption "namespace") of
         Nothing -> pure Nothing
-        Just ns -> pure <| Just (T.pack ns)
+        Just ns -> do
+          -- Validate it's a proper namespace by parsing it
+          let validNs = Namespace.fromHaskellModule ns
+              nsPath = T.pack <| Namespace.toPath validNs
+          pure <| Just nsPath
       task <- createTask title project namespace deps
       putStrLn <| "Created task: " <> T.unpack (taskId task)
   | args `Cli.has` Cli.command "list" = do