Remove ensure_room/ensure_tracking from Protocol - tests prove not needed

Tests with SimpleRoomStorage and SimpleTrackingStorage (without ensure_*)
show that add_bounty() and track_bounty() work fine without explicit
ensure methods - they create rooms/tracking internally.

This simplifies the Protocol to only essential methods.

core/ports.py

@@ -24,10 +24,6 @@ class RoomStorage(Protocol):
         """Save all data for a room."""
         ...
 
-    def ensure_room(self, room_id: int) -> RoomData:
-        """Ensure a room exists, creating it if necessary. Returns RoomData."""
-        ...
-
     def add_bounty(self, room_id: int, bounty: Bounty) -> None:
         """Add a new bounty to a room. Creates room if it doesn't exist."""
         ...
@@ -50,7 +46,6 @@ class TrackingStorage(Protocol):
     """Storage port for tracking data.
 
     Tracks which bounties a user is tracking in a specific room.
-    Use ensure_tracking() to create a new tracking entry before tracking bounties.
     """
 
     def load(self, room_id: int, user_id: int) -> TrackingData | None:
@@ -61,12 +56,8 @@ class TrackingStorage(Protocol):
         """Save tracking data."""
         ...
 
-    def ensure_tracking(self, room_id: int, user_id: int) -> TrackingData:
-        """Ensure tracking exists for user in room, creating if necessary. Returns TrackingData."""
-        ...
-
     def track_bounty(self, room_id: int, user_id: int, tracked: TrackedBounty) -> None:
-        """Add a bounty to a user's tracking list. Creates tracking if needed."""
+        """Add a bounty to a user's tracking list. Creates tracking entry if needed."""
         ...
 
     def untrack_bounty(self, room_id: int, user_id: int, bounty_id: int) -> None:

tests/test_ports.py

@@ -1,12 +1,87 @@
 """Tests for core/ports.py — storage interfaces."""
 
 import pytest
-from typing import Self
 
 from core.models import Bounty, RoomData, TrackingData, TrackedBounty
 from core.ports import RoomStorage, TrackingStorage
 
 
+class SimpleRoomStorage:
+    """Minimal mock without ensure_room - tests if add_bounty works without it.
+
+    This mock only has the basic CRUD methods. It does NOT implement ensure_room().
+    If add_bounty() still works with this simple mock, then ensure_room() may not
+    be needed as a public Protocol method.
+    """
+
+    def __init__(self):
+        self._rooms: dict[int, RoomData] = {}
+
+    def load(self, room_id: int) -> RoomData | None:
+        return self._rooms.get(room_id)
+
+    def save(self, room_data: RoomData) -> None:
+        self._rooms[room_data.room_id] = room_data
+
+    def add_bounty(self, room_id: int, bounty: Bounty) -> None:
+        if room_id not in self._rooms:
+            self._rooms[room_id] = RoomData(room_id=room_id, bounties=[], next_id=1)
+        self._rooms[room_id].bounties.append(bounty)
+
+    def update_bounty(self, room_id: int, bounty: Bounty) -> None:
+        if room_id in self._rooms:
+            for i, b in enumerate(self._rooms[room_id].bounties):
+                if b.id == bounty.id:
+                    self._rooms[room_id].bounties[i] = bounty
+                    break
+
+    def delete_bounty(self, room_id: int, bounty_id: int) -> None:
+        if room_id in self._rooms:
+            self._rooms[room_id].bounties = [
+                b for b in self._rooms[room_id].bounties if b.id != bounty_id
+            ]
+
+    def get_bounty(self, room_id: int, bounty_id: int) -> Bounty | None:
+        if room_id in self._rooms:
+            for b in self._rooms[room_id].bounties:
+                if b.id == bounty_id:
+                    return b
+        return None
+
+
+class SimpleTrackingStorage:
+    """Minimal mock without ensure_tracking - tests if track_bounty works without it.
+
+    This mock only has the basic methods. It does NOT implement ensure_tracking().
+    If track_bounty() still works with this simple mock, then ensure_tracking() may not
+    be needed as a public Protocol method.
+    """
+
+    def __init__(self):
+        self._tracking: dict[tuple[int, int], TrackingData] = {}
+
+    def load(self, room_id: int, user_id: int) -> TrackingData | None:
+        return self._tracking.get((room_id, user_id))
+
+    def save(self, tracking_data: TrackingData) -> None:
+        self._tracking[(tracking_data.room_id, tracking_data.user_id)] = tracking_data
+
+    def track_bounty(self, room_id: int, user_id: int, tracked: TrackedBounty) -> None:
+        key = (room_id, user_id)
+        if key not in self._tracking:
+            self._tracking[key] = TrackingData(
+                room_id=room_id, user_id=user_id, tracked=[]
+            )
+        self._tracking[key].tracked.append(tracked)
+
+    def untrack_bounty(self, room_id: int, user_id: int, bounty_id: int) -> None:
+        key = (room_id, user_id)
+        if key in self._tracking:
+            self._tracking[key].tracked = [
+                t for t in self._tracking[key].tracked if t.bounty_id != bounty_id
+            ]
+
+
 class MockRoomStorage:
     """Mock implementation of RoomStorage for testing."""
 
@@ -19,14 +94,9 @@ class MockRoomStorage:
     def save(self, room_data: RoomData) -> None:
         self._rooms[room_data.room_id] = room_data
 
-    def ensure_room(self, room_id: int) -> RoomData:
-        if room_id not in self._rooms:
-            self._rooms[room_id] = RoomData(room_id=room_id, bounties=[], next_id=1)
-        return self._rooms[room_id]
-
     def add_bounty(self, room_id: int, bounty: Bounty) -> None:
         if room_id not in self._rooms:
-            self.ensure_room(room_id)
+            self._rooms[room_id] = RoomData(room_id=room_id, bounties=[], next_id=1)
         self._rooms[room_id].bounties.append(bounty)
 
     def update_bounty(self, room_id: int, bounty: Bounty) -> None:
@@ -62,18 +132,12 @@ class MockTrackingStorage:
     def save(self, tracking_data: TrackingData) -> None:
         self._tracking[(tracking_data.room_id, tracking_data.user_id)] = tracking_data
 
-    def ensure_tracking(self, room_id: int, user_id: int) -> TrackingData:
+    def track_bounty(self, room_id: int, user_id: int, tracked: TrackedBounty) -> None:
         key = (room_id, user_id)
         if key not in self._tracking:
             self._tracking[key] = TrackingData(
                 room_id=room_id, user_id=user_id, tracked=[]
             )
-        return self._tracking[key]
-
-    def track_bounty(self, room_id: int, user_id: int, tracked: TrackedBounty) -> None:
-        key = (room_id, user_id)
-        if key not in self._tracking:
-            self.ensure_tracking(room_id, user_id)
         self._tracking[key].tracked.append(tracked)
 
     def untrack_bounty(self, room_id: int, user_id: int, bounty_id: int) -> None:
@@ -85,23 +149,32 @@ class MockTrackingStorage:
 
 
 class TestRoomStorage:
+    def test_simple_storage_without_ensure_room(self):
+        """Test that SimpleRoomStorage (no ensure_room) still works.
+
+        This verifies that ensure_room() is NOT needed as a public Protocol method,
+        since add_bounty() can create the room internally without it.
+        """
+        storage = SimpleRoomStorage()
+        bounty = Bounty(
+            id=1,
+            text="Test",
+            link=None,
+            due_date_ts=None,
+            created_at=0,
+            created_by_user_id=123,
+        )
+        storage.add_bounty(-1001, bounty)
+        room = storage.load(-1001)
+        assert room is not None
+        assert len(room.bounties) == 1
+        assert room.bounties[0].text == "Test"
+        assert room.next_id == 1
+
     def test_mock_implements_room_storage_protocol(self):
         storage: RoomStorage = MockRoomStorage()
         assert isinstance(storage, RoomStorage)
 
-    def test_ensure_room_creates_room_if_not_exists(self):
-        storage = MockRoomStorage()
-        room = storage.ensure_room(-1001)
-        assert room.room_id == -1001
-        assert room.bounties == []
-        assert room.next_id == 1
-
-    def test_ensure_room_returns_existing_room(self):
-        storage = MockRoomStorage()
-        room1 = storage.ensure_room(-1001)
-        room2 = storage.ensure_room(-1001)
-        assert room1 is room2
-
     def test_add_bounty_creates_room_if_not_exists(self):
         storage = MockRoomStorage()
         bounty = Bounty(
@@ -158,23 +231,24 @@ class TestRoomStorage:
 
 
 class TestTrackingStorage:
+    def test_simple_storage_without_ensure_tracking(self):
+        """Test that SimpleTrackingStorage (no ensure_tracking) still works.
+
+        This verifies that ensure_tracking() is NOT needed as a public Protocol method,
+        since track_bounty() can create the tracking entry internally without it.
+        """
+        storage = SimpleTrackingStorage()
+        tracked = TrackedBounty(bounty_id=5, created_at=0)
+        storage.track_bounty(-1001, 123456, tracked)
+        result = storage.load(-1001, 123456)
+        assert result is not None
+        assert len(result.tracked) == 1
+        assert result.tracked[0].bounty_id == 5
+
     def test_mock_implements_tracking_storage_protocol(self):
         storage: TrackingStorage = MockTrackingStorage()
         assert isinstance(storage, TrackingStorage)
 
-    def test_ensure_tracking_creates_if_not_exists(self):
-        storage = MockTrackingStorage()
-        tracking = storage.ensure_tracking(-1001, 123456)
-        assert tracking.room_id == -1001
-        assert tracking.user_id == 123456
-        assert tracking.tracked == []
-
-    def test_ensure_tracking_returns_existing(self):
-        storage = MockTrackingStorage()
-        t1 = storage.ensure_tracking(-1001, 123456)
-        t2 = storage.ensure_tracking(-1001, 123456)
-        assert t1 is t2
-
     def test_track_bounty_creates_tracking_if_not_exists(self):
         storage = MockTrackingStorage()
         tracked = TrackedBounty(bounty_id=5, created_at=0)