Update submodule for syncthing

AGENTS.md

@@ -25,12 +25,3 @@ This document outlines the development conventions for this NixOS-based infrastr
 - **Secrets:** Secrets are managed with `agenix`. Edit encrypted files with `agenix -e <file>`.
 - **Modularity:** Structure configurations into logical, reusable modules under `modules/`. New modules should be registered in `modules/nixos/default.nix` to be available to all hosts.
 - **Error Handling:** Ensure Nix expressions are robust and handle potential evaluation errors gracefully.
-
-## Workflow
-
-- New feature → clean branch from `origin/master` → push → PR on Gitea
-- Branch naming: `feat/description` (features), `fix/description` (bugs/docs)
-- Always branch from `origin/master`, never from another feature branch
-- Submodule changes: commit submodule update in parent repo (the parent commit pins the submodule commit)
-- PR title should describe the change; body should explain motivation + summary
-- After PR merge, delete the feature branch