feat: switch aoe to git.naps.pt/yolo fork

Fork carries two patches on v1.14.1+: worktree_info on plain add
(grouping) and reaping agent processes that survive tmux teardown.
Also brings upstream the settings drift the mutable-file guard caught:
fable model, secret-guard hook chain, verbose, confirm_delete.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

flake.nix

@@ -64,7 +64,7 @@
     };
     # Pinned to the tag, and pins its own nixpkgs for the same reason ethui does
     # — it is a verified Rust build. Bump deliberately, not via `flake update`.
-    agent-of-empires.url = "github:agent-of-empires/agent-of-empires/v1.14.1";
+    agent-of-empires.url = "git+https://git.naps.pt/yolo/agent-of-empires.git";
     # Semantic-diff tool rev calls via REV_SEM_BIN. NOT nixpkgs' `sem`, which is
     # the unrelated Semaphore CI cli.
     sem.url = "github:Ataraxy-Labs/sem";