Merge 630319fefe into 5a5818f4c2

Bumps the uv group with 1 update in the / directory: [langgraph-checkpoint](https://github.com/langchain-ai/langgraph).


Updates `langgraph-checkpoint` from 4.1.0 to 4.1.1
- [Release notes](https://github.com/langchain-ai/langgraph/releases)
- [Commits](https://github.com/langchain-ai/langgraph/compare/checkpoint==4.1.0...checkpoint==4.1.1)

---
updated-dependencies:
- dependency-name: langgraph-checkpoint
  dependency-version: 4.1.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/promote_dev_to_prod.yml

@@ -1,4 +1,4 @@
-name: Promote dev to prod
+name: Promote dev to main (prod)
 
 permissions:
   contents: write
@@ -9,7 +9,7 @@ on:
   workflow_dispatch:
 
 concurrency:
-  group: promote-dev-to-prod
+  group: promote-dev-to-main
   cancel-in-progress: false
 
 jobs:
@@ -20,6 +20,8 @@ jobs:
         with:
           ref: dev
           fetch-depth: 0
-      - name: Fast-forward prod to dev
+      - name: Fast-forward main (PROD) to dev
+        # main is the production branch; a plain ref push is fast-forward-only
+        # (branch protection rejects non-FF), so a diverged main fails loudly.
         run: |
-          git push origin HEAD:refs/heads/prod
+          git push origin HEAD:refs/heads/main