[api] votekick and uniform dorm kicks

apps/api/migrations/0023_room_vote.sql

@@ -0,0 +1,20 @@
+-- Vote-to-kick ballots: one row per vote cast, appended, never updated.
+--
+-- Generated from apps/api/src/votes-db.ts (SCHEMA_DDL) — keep in sync.
+--
+-- `response` is 1 for yes (kick them) and 0 for no. A player who votes twice leaves two
+-- rows: the tally counts DISTINCT voters and reads only each one's latest ballot, so
+-- re-posting a vote cannot carry one, and a voter may change their mind.
+--
+-- Rows are keyed to `game_session_id` (a `room_instance` id) and outlive the session.
+-- Nothing prunes them; instance ids are not reused, so an old session's ballots can never
+-- be counted into a new one's.
+CREATE TABLE IF NOT EXISTS room_vote (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  game_session_id INTEGER NOT NULL,
+  player_id INTEGER NOT NULL,
+  response INTEGER NOT NULL,
+  voter_id INTEGER NOT NULL,
+  voted_at TEXT NOT NULL
+  );
+CREATE INDEX IF NOT EXISTS idx_room_vote_subject ON room_vote (game_session_id, player_id);