Initial SyncGames tree: agent, Android, deploy, docs.

Session-gated MinIO save sync with AppImage GUI, CLI edit/session flow, and Gitea release helper.

Co-authored-by: Cursor <[email protected]>

agent/syncgames/errors.py

@@ -0,0 +1,30 @@
+from __future__ import annotations
+
+
+class SyncGamesError(Exception):
+    key = "error"
+
+    def __init__(self, message: str, *, key: str | None = None) -> None:
+        super().__init__(message)
+        if key:
+            self.key = key
+
+
+class ConfigError(SyncGamesError):
+    key = "config_error"
+
+
+class LeaseHeldError(SyncGamesError):
+    key = "lease_held"
+
+
+class StaleWipError(SyncGamesError):
+    key = "stale_wip"
+
+
+class StoreError(SyncGamesError):
+    key = "store_error"
+
+
+class GameRunningError(SyncGamesError):
+    key = "game_running"