feat(conversations,jobs): a manual run of the rotation job rotates the master now

src/beaver_gateway/conversations/rotation.py

@@ -77,9 +77,19 @@ class Rotation:
                 out.append((master, reason))
         return out
 
-    async def tick(self, now: datetime | None = None) -> list[Conversation]:
+    async def tick(
+        self, now: datetime | None = None, *, force: str | None = None
+    ) -> list[Conversation]:
+        """Rotate the masters that are due; ``force`` rotates every open master."""
         rotated: list[Conversation] = []
-        for master, reason in await self.due(now):
+        if force:
+            due = [
+                (m, force)
+                for m in await self._conversations.find(kind="master", status="open")
+            ]
+        else:
+            due = await self.due(now)
+        for master, reason in due:
             new = await self.rotate(master, reason)
             if new is not None:
                 rotated.append(new)