fix: support explicitly authorized Codex deployment without sandbox

Production agents repeatedly failed before SSH because the launcher only accepted workspace-write profiles. Accept the explicit Codex danger-full-access profile through the same validated plan and receipt path, and cover profile, argv and receipt validation with regression tests.

skills/ack/templates/tasks.schema.json

@@ -680,6 +680,7 @@
         "permissionMode"
       ],
       "additionalProperties": false,
+      "allOf": [{"if": {"properties": {"permissionMode": {"const": "danger-full-access"}}, "required": ["permissionMode"]}, "then": {"properties": {"cli": {"const": "codex"}}, "required": ["cli"]}}],
       "properties": {
         "role": {
           "type": "string",
@@ -734,7 +735,8 @@
           "type": "string",
           "enum": [
             "read-only",
-            "workspace-write"
+            "workspace-write",
+            "danger-full-access"
           ]
         }
       }
@@ -895,6 +897,7 @@
         "environmentPolicy"
       ],
       "additionalProperties": false,
+      "allOf": [{"if": {"properties": {"permissionMode": {"const": "danger-full-access"}}, "required": ["permissionMode"]}, "then": {"properties": {"cli": {"const": "codex"}}, "required": ["cli"]}}],
       "properties": {
         "cli": {
           "type": "string",
@@ -942,7 +945,8 @@
           "type": "string",
           "enum": [
             "read-only",
-            "workspace-write"
+            "workspace-write",
+            "danger-full-access"
           ]
         },
         "executable": {