Black market: 18 merchant types from the game's items and player professions

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/Decentralized.Domain/BmMerchants.cs

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+using System.Collections.Generic;
+using System.Linq;
+
+namespace Decentralized.Domain
+{
+    /// <summary>商家货架上的一项货：游戏物品 id、货的种类、违禁等级（只对违禁品有意义，随黑市声望放开）。</summary>
+    public struct BmEntry
+    {
+        public string Id;
+        public GoodKind Kind;
+        public int Level;
+    }
+
+    /// <summary>
+    /// 商家类型的货表。除了矿卡，其余都按玩家能走的路线配货：矿工、酿酒师、化学师、药剂师、枪械师、水培农场主、养殖户、水务、仓储、工具、奢侈品，
+    /// 加上违禁品（军火、证件芯片）。大宗商家什么都卖。
+    /// </summary>
+    public static class Merchants
+    {
+        private static BmEntry C(string id, int level) => new BmEntry { Id = id, Kind = GoodKind.Contraband, Level = level };
+        private static BmEntry T(string id) => new BmEntry { Id = id, Kind = GoodKind.Tech, Level = 3 };
+        private static BmEntry G(string id) => new BmEntry { Id = id, Kind = GoodKind.Goods, Level = 0 };
+        private static BmEntry[] Gs(params string[] ids) => ids.Select(G).ToArray();
+
+        public static readonly Dictionary<MerchantType, BmEntry[]> Table = new Dictionary<MerchantType, BmEntry[]>
+        {
+            [MerchantType.Rigs] = new[] { T("pd_rig"), T("energy_credit_ext"), T("energy_credit_hyp"), T("energy_credit_breeder"), T("powerblock"), T("recharger"), T("current_converter") },
+            [MerchantType.Modules] = new[] { T("system_module_overclock"), T("system_module_performance"), T("system_module_quality"), T("system_module_eco"), T("system_module_efficiancy"),
+                T("system_module_fineness"), T("system_module_streamlining"), T("module_extractor_advanced"), T("module_bay_expansion_kit") },
+            [MerchantType.Arms] = new[] { C("handmade_pistol", 1), C("printed_gun", 1), C("stun_baton", 1), C("revolver", 2), C("heavy_handmade_pistol", 2), C("flashbang_grenade", 2), C("smoke_grenade", 2),
+                C("shotgun", 3), C("smg", 3), C("c4", 3), G("combat_knife"), G("combat_machete"), G("hatchet"), G("crowbar"), G("kitchen_cleaver"), G("skinning_knife"), G("stun_gun"), G("tazer") },
+            [MerchantType.GunMods] = Gs("silencer2", "laser2", "match_barrel", "trigger_group", "mag_10mm_high", "mag_22_high", "mag_10mm_smg_high", "rds", "compensator", "stock", "grip", "bipod", "barrel",
+                "printer_chip_gun_part", "printer_chip_silencer", "printer_chip_handmade_pistol_frame", "printer_chip_heavy_handmade_pistol_frame", "printer_module_cnc", "printer_module_metal", "gun_part", "printer_plastic"),
+            [MerchantType.Docs] = new[] { C("eng_keycard", 1), C("med_keycard", 1), C("ser_keycard", 1), C("sup_keycard", 1), C("crypto_module_ser", 1), C("crypto_module_sup", 1),
+                C("sci_keycard", 2), C("sec_keycard", 2), C("crypto_module_eng", 2), C("crypto_module_med", 2), C("cmd_keycard", 3), C("crypto_module_sec", 3) },
+            [MerchantType.Pharma] = new[] { C("unlicensed_phagimycin_pill", 2), C("dream_dust", 2), C("fanta_pill", 3), C("nightmare_dust", 3), C("zyanide_pill", 2),
+                G("black_injector"), G("pure_white_injector"), G("large_purple_injector"), G("pink_injector"), G("pink_alt_injector"), G("blue_blood_bag"), G("surgery_tool"), G("zerochew"), G("phagimycin_pill") },
+            [MerchantType.Chem] = new[] { C("restricted_chemical", 2), G("common_chemical"), G("flux_agent"), G("advanced_flux_agent"), G("chem_module"), G("evaporator_module_solvent_recovery"),
+                G("chem_scanner"), G("med_bottle_blue"), G("med_bottle_orange"), G("med_bottle_red"), G("med_bottle_small_pink"), G("med_bottle_violet"), G("100ml_cylinder"), G("5ml_dropper") },
+            [MerchantType.Brewer] = new[] { G("wine_yeast"), G("wine_superyeast"), G("wine_yeast_infinite"), C("wine_yeast_red", 1), G("wine_berry"), G("bloomberry_seed"), G("nudka"), G("red_beer"), G("beerCase"), G("wine_bottle") },
+            [MerchantType.Farm] = new[] { G("nutrifruit_seed"), G("kotton_seed"), G("fillerweed_seed"), G("hydroreed_seed"), G("bloomberry_seed"), C("dream_cap_seed", 1),
+                G("farm_module_nutrifruit"), G("farm_module_kotton_loom"), G("farm_module_fillerweed_production"), G("farm_module_hydroreed_filter"), G("farm_module_dream_cap"), G("farm_module_smuggler"),
+                G("plant_analyser"), G("plant_dna_disk"), G("nutrient_tablet"), G("hydroreed_filter") },
+            [MerchantType.Husbandry] = Gs("tilapia_roe", "sturgeon_roe", "caviar", "ras", "serum_green", "serum_red",
+                "livestock_feed_dispenser", "auto_butcher", "industrial_fish_feed", "animal_cage"),
+            [MerchantType.Miner] = Gs("common_ore", "rare_ore", "metal_ingot", "scrap_metal", "common_electronic", "rare_electronic", "hypertech_electronic", "metal_scanner", "wire", "advanced_flux_agent"),
+            [MerchantType.Water] = Gs("water_filter_adv", "portable_water_purifier", "water_tank", "uv_filter", "water_tablet_container", "water_test_container", "aquascan", "bottled_water_premium", "water_jug", "water_ration"),
+            [MerchantType.Storage] = Gs("smuggler_bay", "smuggler_bay_mod", "smuggler_bay_mini", "storage_bay_large", "storage_bay_expansion_kit", "hypertech_bay", "machine_bay_ext", "storage_bay_chem",
+                "storage_bay_gun", "backpack_large_military"),
+            [MerchantType.Tools] = Gs("turbo_booster", "turbo_booster_adv", "turbo_booster_hypertech", "welder", "xray_scanner", "magnifier", "labeler_blue", "toolbox", "wire_cutter", "mind_reprogrammer"),
+            [MerchantType.Luxury] = new[] { C("pheromone_perfume", 2), G("neuroactive_perfume"), G("self_refilling_neuroactive_perfume"), G("skincare_cream"), G("packet_red_cigarette"), G("gamblers_coin"), G("kotton_fabric"), G("armor_lining") },
+        };
+
+        private static readonly Dictionary<string, BmEntry> ById = BuildIndex();
+
+        private static Dictionary<string, BmEntry> BuildIndex()
+        {
+            var d = new Dictionary<string, BmEntry>();
+            foreach (var e in Table.Values.SelectMany(x => x)) d[e.Id] = e;
+            foreach (var kv in BlackMarket.Pool) d[kv.Key] = new BmEntry { Id = kv.Key, Kind = GoodKind.Contraband, Level = kv.Value };
+            foreach (var id in BlackMarket.TechPool) d[id] = new BmEntry { Id = id, Kind = GoodKind.Tech, Level = 3 };
+            return d;
+        }
+
+        /// <summary>这个物品 id 在黑市上是不是一件货（现货柜台、商家货架里出现过的，都能转手出售）。</summary>
+        public static bool IsGood(string id) => ById.ContainsKey(id);
+
+        public static BmEntry Info(string id) => ById[id];
+    }
+}