feat: add remote URL attachment support and project editing endpoint

devplacepy/services/devii/actions/container_actions.py

@@ -103,11 +103,15 @@ CONTAINER_ACTIONS: tuple[Action, ...] = (
         path="",
         handler="container",
         requires_admin=True,
-        summary="Run a one-shot command inside a running instance and return its output",
+        summary="Run a one-shot command inside a running instance and return its output. The command runs in /app (the project workspace) by default, so never prefix it with 'cd /app'",
         params=(
             SLUG,
             arg("instance", "Instance name, slug, or uid.", required=True),
-            arg("command", "Command to run, e.g. 'pip list'.", required=True),
+            arg(
+                "command",
+                "Command to run, e.g. 'git clone ... && ls'. Runs in /app already; do not prepend 'cd /app'.",
+                required=True,
+            ),
         ),
     ),
     Action(