两个新地下城，和会自己增殖的房间
寒冰洞窟和呼啸林地开放了。另外，每个房间现在可以有任意多个实例：如果你进的那个满了，传送门会再开一个给你。
为什么
每个房间只有一个实例的时候，整个服务器同一时间只有四个人能刷同一个地下城。这连和朋友一起测试都撑不住。
怎么运作
寒冰洞窟在东南传送门，里面有冰狼和霜之灵，中间是霜之魔像，最后是冰龙蛇。它需要火。呼啸林地在西南传送门，里面有呼啸狼、荆棘小妖和火花小鬼，中间是幼年树人，最后是风暴狮鹫，需要土和火。
两个地下城都沿用废墟的格式：五个房间，布局随机抽取且不重复，房间清空后门才会打开，终点有一个要一把钥匙开的宝箱。
传送门会把你送进有空位且人最多的实例，这样便于凑成队伍。所有实例都满了就会新开一个，空了就会消失。
下一步
进入之前先组好队，这样可以选择和谁一起去。
变更
- feat(server): phase 2 systems behind one service hub
Room instances: a full room opens a new instance (rid#n) and empty extra instances are dropped; matchmaking fills groups first. New room kinds: farm (wild animals that respawn, gather nodes, team revives instead of failing), legend (weekly boss, needs 2 players and a level, phases with summons and flooding, linked roots, aura cycling with reflect, damage only from given reactions) and explore (Wednesday and Sunday, 10 waves of 10 elites per rotating theme, 20 s pause with free swap, reward per wave, 10x chest capped at 2 per opening, ranking and a global announcement). Two more dungeons (Caverna Gelida, Bosque Uivante), four legends and the explore themes, all in data with their mobs, loot and portals. Modules: Cooking (farm gathering with personal regrowth, recipes, shop, food that buffs both characters for 30 min), Gacha (six banners with their own pity at 30, no 50/50, fragments, cosmetic visuals), Storage, TradeSession (two locks, 3 s review, atomic two-account update, 90-day log), Market (escrow, 5% fee, offline payout) and Guilds (ranks, invites, storage, message of the day, guild chat). Net exposes them through rq_op/panel_rpc. Protocol 12.
- feat(client): farm, legends, explore and city service panels
Farm room: zones, gather nodes with personal regrowth, tap a node to walk and gather, orange exit back to town. Legend and explore overlays: waiting for players, phase banners, flooding tint, roots, wave and pause with free swap. City: Taverna, Loja, Armazem and Mercado open their panels with F or a tap; tapping another player offers a trade; Gacha, Guilda and Incursao buttons at the top. New panels for cooking, storage, market, trade, gacha and guild, all talking to the server through Net.op. Food is eaten from the bag. Guild chat with /gu. Gacha cosmetics recolor the outfit, armor and weapon layers, and wings, mounts and pets show as a tag under the name. Mob sprites for the new monsters and the farm animals. Integration test covers farm gathering, cooking, food in the room, storage, gacha pulls, guild chat, legend gating, market eligibility and an explore wave. Version 0.2.0.