Improve membership flow, play library, and mobile tactics board

server/db.js

@@ -15,6 +15,7 @@ export async function createMongoStore(options = {}) {
   const sessions = database.collection('sessions');
   const teams = database.collection('teams');
   const teamMembers = database.collection('team_members');
+  const joinRequests = database.collection('team_join_requests');
   const plays = database.collection('plays');
   try {
     await Promise.all([
@@ -23,6 +24,9 @@ export async function createMongoStore(options = {}) {
       sessions.createIndex({ expiresAt: 1 }, { expireAfterSeconds: 0 }),
       teamMembers.createIndex({ teamId: 1, userId: 1 }, { unique: true }),
       teamMembers.createIndex({ userId: 1 }),
+      joinRequests.createIndex({ teamId: 1, userId: 1 }, { unique: true }),
+      joinRequests.createIndex({ teamId: 1, status: 1, createdAt: 1 }),
+      joinRequests.createIndex({ userId: 1, updatedAt: -1 }),
       plays.createIndex({ teamId: 1, id: 1 }, { unique: true }),
       plays.createIndex({ teamId: 1, updatedAt: -1 }),
     ]);
@@ -31,7 +35,7 @@ export async function createMongoStore(options = {}) {
     throw error;
   }
   return {
-    client, database, users, sessions, teams, teamMembers, plays,
+    client, database, users, sessions, teams, teamMembers, joinRequests, plays,
     async close() { if (!options.client) await client.close(); },
   };
 }