diff --git a/.planning/milestone.lock b/.planning/milestone.lock
deleted file mode 100644
index baad327..0000000
--- a/.planning/milestone.lock
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "phase": "7",
-  "session": "wt-session-874e6f7c-d65a-4999-87de-835c94fb5bb4",
-  "pid": 183252,
-  "updated_at": 1789461143442
-}