Offer a Continue link for ongoing games in the lobby

A player who accidentally closes the game page can now get back to it
from the lobby.

Backend:
- GameStore.list_ongoing() returns live unfinished sessions (newest
  first), skipping expired keys and finished matches;
- GET /api/me/games lists the games the caller is seated in, with the
  game name/description, players, open seats and your seat (no join
  code);
- store, platform route and app integration tests.

Frontend:
- MyGame/MyGamesPage model plus api::my_games();
- the lobby shows a "Your games" card with phase, seats, players and a
  Continue button linking to /game/<id>; hidden when empty or logged
  out.

server/packages/tavolo-platform/src/tavolo/platform/routes/games.py

@@ -108,6 +108,34 @@ def _preview_payload(platform: "Platform", session: GameSession) -> Dict[str, An
     }
 
 
+def _ongoing_game_payload(
+    platform: "Platform", session: GameSession, sub: str
+) -> Dict[str, Any]:
+    """One entry of the caller's ongoing-games list.
+
+    Reuses the lobby payload (players, open seats, option echo) but drops
+    the join code — the Continue link only needs the id, and the game page
+    shows the code to its players anyway.
+    """
+    engine = platform.registry.require(session.game_type)
+    payload = _lobby_payload(platform, session)
+    payload.pop("join_code", None)
+    payload["game_name"] = engine.name
+    payload["game_description"] = engine.description
+    payload["your_seat"] = next(
+        (
+            index
+            for index, seat in enumerate(session.players)
+            if seat.user_sub == sub
+        ),
+        None,
+    )
+    payload["created_at"] = (
+        session.created_at.isoformat() if session.created_at else None
+    )
+    return payload
+
+
 def register(app: KayaApp, platform: "Platform") -> None:
     @app.GET("/api/game-types")
     @operation(summary="List available games",
@@ -341,3 +369,27 @@ def register(app: KayaApp, platform: "Platform") -> None:
         await send_json(
             ctx, 200, _view_payload(platform, session, user.sub if user else None)
         )
+
+    @app.GET("/api/me/games")
+    @operation(summary="List my ongoing games",
+               description="Live games the caller is seated in — waiting "
+                           "lobbies and matches in progress or between "
+                           "hands — newest first, for the lobby's Continue "
+                           "list. Finished matches are not included.",
+               tags=["games"],
+               responses={
+                   200: {"description": "The caller's ongoing games"},
+                   401: {"description": "Authentication required"},
+               })
+    @require_auth(platform.oidc)
+    async def my_games(ctx: HttpContext) -> None:
+        user = current_user(platform.oidc, ctx)
+        assert user is not None  # enforced by @require_auth
+        sessions = await platform.game_store.list_ongoing()
+        await send_json(ctx, 200, {
+            "results": [
+                _ongoing_game_payload(platform, session, user.sub)
+                for session in sessions
+                if session.seated(user.sub)
+            ]
+        })

server/packages/tavolo-platform/src/tavolo/platform/store.py

@@ -41,7 +41,7 @@ import contextlib
 import json
 import time
 from abc import ABC, abstractmethod
-from datetime import datetime
+from datetime import datetime, timezone
 from logging import getLogger
 from typing import Any, AsyncContextManager, AsyncIterator, Dict, List, Mapping, Optional, Set, cast
 
@@ -72,6 +72,15 @@ def _dt_to_json(value: Optional[datetime]) -> Optional[str]:
     return value.isoformat() if value is not None else None
 
 
+def _created_at_key(session: GameSession) -> datetime:
+    """Sort key for :meth:`GameStore.list_ongoing` (newest first).
+
+    Sessions without a creation timestamp sort last; the epoch sentinel is
+    timezone-aware so it never mixes with the stored UTC datetimes.
+    """
+    return session.created_at or datetime.min.replace(tzinfo=timezone.utc)
+
+
 def _dt_from_json(value: Any) -> Optional[datetime]:
     if not value:
         return None
@@ -137,6 +146,15 @@ class GameStore(ABC):
         still retained for the final-board view do not.
         """
 
+    @abstractmethod
+    async def list_ongoing(self, limit: int = 20) -> List[GameSession]:
+        """Return up to ``limit`` live games that have not finished yet.
+
+        Newest ``created_at`` first. Sessions whose key has expired are
+        skipped, and so are matches that are over but still retained for
+        the final-board view.
+        """
+
     @abstractmethod
     def lock(self, game_id: str) -> AsyncContextManager[None]:
         """Async context manager serializing mutations of one game."""
@@ -241,6 +259,27 @@ class RedisGameStore(GameStore):
             _, count = await pipe.execute()
         return int(count)
 
+    async def list_ongoing(self, limit: int = 20) -> List[GameSession]:
+        await self._redis.zremrangebyscore(
+            ONGOING_GAMES_KEY, "-inf", time.time()
+        )
+        members = await self._redis.zrange(ONGOING_GAMES_KEY, 0, -1)
+        sessions: List[GameSession] = []
+        for member in members:
+            game_id = (
+                member.decode("utf-8") if isinstance(member, bytes) else str(member)
+            )
+            session = await self.load(game_id)
+            if session is None:
+                # The game key expired but the ongoing entry had not been
+                # pruned yet: skip it.
+                continue
+            if self._registry.require(session.game_type).is_finished(session):
+                continue
+            sessions.append(session)
+        sessions.sort(key=_created_at_key, reverse=True)
+        return sessions[:limit]
+
     @contextlib.asynccontextmanager
     async def subscribe(self, game_id: str) -> AsyncIterator[AsyncIterator[None]]:
         pubsub = self._redis.pubsub()
@@ -352,6 +391,18 @@ class InMemoryGameStore(GameStore):
     async def count_ongoing(self) -> int:
         return len(self._ongoing)
 
+    async def list_ongoing(self, limit: int = 20) -> List[GameSession]:
+        sessions: List[GameSession] = []
+        for game_id in list(self._ongoing):
+            session = await self.load(game_id)
+            if session is None:
+                continue
+            if self._registry.require(session.game_type).is_finished(session):
+                continue
+            sessions.append(session)
+        sessions.sort(key=_created_at_key, reverse=True)
+        return sessions[:limit]
+
     @contextlib.asynccontextmanager
     async def subscribe(self, game_id: str) -> AsyncIterator[AsyncIterator[None]]:
         queue: asyncio.Queue = asyncio.Queue()

server/packages/tavolo-platform/tests/test_routes.py

@@ -188,6 +188,63 @@ class GamesRouteTest(unittest.TestCase):
                 response = await client.get("/api/games/does-not-exist")
             self.assertEqual(404, response.status_code)
 
+    @async_test
+    async def test_my_games_lists_only_my_ongoing_games(self) -> None:
+        app, platform, _ = make_platform()
+        transport = ASGITransport(app=app)
+        async with AsyncClient(transport=transport, base_url="http://127.0.0.1") as client:
+            anonymous = await client.get("/api/me/games")
+            self.assertEqual(401, anonymous.status_code)
+
+            with oidc_user(platform.oidc, "alice"):
+                mine = await client.post(
+                    "/api/games", json={"options": {"target": 5}}
+                )
+            with oidc_user(platform.oidc, "bob"):
+                theirs = await client.post("/api/games", json={})
+            self.assertEqual(201, mine.status_code)
+            self.assertEqual(201, theirs.status_code)
+
+            with oidc_user(platform.oidc, "alice"):
+                listed = await client.get("/api/me/games")
+            self.assertEqual(200, listed.status_code)
+            results = listed.json()["results"]
+            self.assertEqual([mine.json()["id"]], [g["id"] for g in results])
+            entry = results[0]
+            self.assertEqual("dummy", entry["game_type"])
+            self.assertEqual("Dummy game", entry["game_name"])
+            self.assertTrue(entry["game_description"])
+            self.assertEqual("lobby", entry["phase"])
+            self.assertEqual(5, entry["target"])
+            self.assertEqual(1, entry["seats_open"])
+            self.assertEqual(0, entry["your_seat"])
+            self.assertNotIn("join_code", entry)
+            self.assertEqual("alice", entry["players"][0]["sub"])
+
+            # Bob's own game is the only one he sees; Alice's is not his.
+            with oidc_user(platform.oidc, "bob"):
+                bobs = await client.get("/api/me/games")
+            self.assertEqual(
+                [theirs.json()["id"]],
+                [g["id"] for g in bobs.json()["results"]],
+            )
+
+            # Once Bob joins Alice's game it appears for both, now in the
+            # playing phase.
+            with oidc_user(platform.oidc, "bob"):
+                await client.post(
+                    "/api/games/join", json={"code": mine.json()["join_code"]}
+                )
+            with oidc_user(platform.oidc, "bob"):
+                bobs = await client.get("/api/me/games")
+            by_id = {g["id"]: g for g in bobs.json()["results"]}
+            self.assertEqual(
+                {mine.json()["id"], theirs.json()["id"]}, set(by_id)
+            )
+            self.assertEqual("playing", by_id[mine.json()["id"]]["phase"])
+            self.assertEqual(1, by_id[mine.json()["id"]]["your_seat"])
+            self.assertEqual(0, by_id[mine.json()["id"]]["seats_open"])
+
 
 class GameTypesRouteTest(unittest.TestCase):
     @async_test

server/packages/tavolo-platform/tests/test_store.py

@@ -4,6 +4,7 @@ from __future__ import annotations
 import asyncio
 import time
 import unittest
+from datetime import datetime, timezone
 from typing import Any, Optional, cast
 
 from tavolo.platform import GameSession, Seat
@@ -48,7 +49,7 @@ class _FakePipeline:
         return False
 
     def set(self, key: str, value: str, ex: object = None) -> None:
-        self._ops.append(("set", key))
+        self._ops.append(("set", key, value))
 
     def zadd(self, key: str, mapping: dict) -> None:
         self._ops.append(("zadd", key, mapping))
@@ -88,6 +89,14 @@ class _FakeRedis:
     async def zrem(self, key: str, member: str) -> int:
         return cast(int, self.apply(("zrem", key, member)))
 
+    async def get(self, key: str) -> object:
+        return self.keys.get(key)
+
+    async def zremrangebyscore(
+        self, key: str, minimum: object, maximum: object
+    ) -> int:
+        return cast(int, self.apply(("zremrangebyscore", key)))
+
     async def zrange(
         self,
         name: str,
@@ -113,7 +122,7 @@ class _FakeRedis:
     def apply(self, op: tuple) -> object:
         name, *args = op
         if name == "set":
-            self.keys[args[0]] = "payload"
+            self.keys[args[0]] = args[1]
             return True
         if name == "zadd":
             self.zsets.setdefault(args[0], {}).update(args[1])
@@ -247,6 +256,28 @@ class InMemoryGameStoreTest(unittest.TestCase):
         await store.save(other)
         self.assertEqual(0, await store.count_ongoing())
 
+    @async_test
+    async def test_list_ongoing_newest_first_and_unfinished_only(self) -> None:
+        store = InMemoryGameStore(_registry())
+        old = _session("old", "CODE01")
+        old.created_at = datetime(2026, 1, 1, tzinfo=timezone.utc)
+        new = _session("new", "CODE02")
+        new.created_at = datetime(2026, 1, 2, tzinfo=timezone.utc)
+        await store.save(old)
+        await store.save(new)
+
+        self.assertEqual(
+            ["new", "old"], [s.id for s in await store.list_ongoing()]
+        )
+        self.assertEqual(
+            ["new"], [s.id for s in await store.list_ongoing(limit=1)]
+        )
+
+        # A finished match retained for the final board is not listed.
+        new.state["finished"] = True
+        await store.save(new)
+        self.assertEqual(["old"], [s.id for s in await store.list_ongoing()])
+
     @async_test
     async def test_deadline_queue(self) -> None:
         store = InMemoryGameStore(_registry())
@@ -311,6 +342,33 @@ class RedisGameStoreTest(unittest.TestCase):
         self.assertEqual(1, await store.count_ongoing())
         self.assertNotIn("stale", redis.zsets[ONGOING_GAMES_KEY])
 
+    @async_test
+    async def test_list_ongoing_loads_unfinished_sessions(self) -> None:
+        redis = _FakeRedis()
+        store = RedisGameStore(redis, _registry(), ttl_seconds=3600)  # type: ignore[arg-type]
+        old = _session("old", "CODE01")
+        old.created_at = datetime(2026, 1, 1, tzinfo=timezone.utc)
+        new = _session("new", "CODE02")
+        new.created_at = datetime(2026, 1, 2, tzinfo=timezone.utc)
+        await store.save(old)
+        await store.save(new)
+
+        self.assertEqual(
+            ["new", "old"], [s.id for s in await store.list_ongoing()]
+        )
+        self.assertEqual(
+            ["new"], [s.id for s in await store.list_ongoing(limit=1)]
+        )
+
+        # A finished match retained for the final board is not listed.
+        new.state["finished"] = True
+        await store.save(new)
+        self.assertEqual(["old"], [s.id for s in await store.list_ongoing()])
+
+        # An ongoing entry whose game key expired is skipped.
+        redis.zsets[ONGOING_GAMES_KEY]["gone"] = time.time() + 100
+        self.assertEqual(["old"], [s.id for s in await store.list_ongoing()])
+
     @async_test
     async def test_due_deadlines_uses_zrange_byscore(self) -> None:
         redis = _FakeRedis()