feat: add Shanghai Mahjong DSL (上海敲麻)

144 tiles, no chi, flower scoring, 11 fan types.
Knocking (declare ting) noted as unsupported engine gap.

dsl-examples/shanghai.yaml

@@ -0,0 +1,118 @@
+# 上海麻将 (上海敲麻) DSL 配置
+# 
+# 规则概要:
+#   - 144张牌 (万条筒108 + 东南西北中发白28 + 春夏秋冬梅兰竹菊8)
+#   - 不可吃牌 (敲麻模式核心特征)
+#   - 花牌计分: 每张花牌+1番, 对应花配对(春梅/夏兰/秋竹/冬菊)+1番
+#   - 番型叠加 (all fans add up)
+#   - 一人胡牌即结束 (非血战)
+#
+# 引擎已知限制 (合规检查会警告):
+#   - "敲" 机制 (declare ting) 不支持: 上海敲麻核心规则是必须声明听牌才能胡牌,
+#     引擎无此概念, 配置中未表达。模拟运行时所有玩家均可随时胡牌。
+#   - 包三家 (discarder pays all): 引擎计分模块不支持此结算模式。
+#   - 全花计分 (春夏秋冬齐/梅兰竹菊齐): 引擎 flower_rules 仅支持单张+配对,
+#     不支持"集齐四花"额外加分。
+#   - 番型: 圈风刻/门风刻/箭刻 不在引擎识别列表中。
+#   - 缺一门/无字 为结构性 marker fan (base_fan=0), 仅用于 excludes 互斥。
+
+game:
+  name: 上海麻将
+  type: mahjong
+  engine_type: mahjong
+  players: { min: 4, max: 4 }
+
+requires:
+  - deck.generator_mahjong
+  - meldsolver.standard_win
+  - meldsolver.seven_pairs
+  - deck.flower_cards
+  - phase.mahjong_turn
+  - phase.priority_arbitration
+  - scoring.fan_exclusion
+
+deck:
+  generator: mahjong
+  include_honors: true
+  include_flowers: true
+  total: 144
+
+deal:
+  cards_per_player: 13
+  dealer_extra: 1
+
+flower_rules:
+  on_draw: replace_and_draw
+  replace_tiles: BEFORE_GAME_START
+  scoring:
+    normal: 1
+    matching:
+      value: 1
+      mapping:
+        1: [春, 梅]
+        2: [夏, 兰]
+        3: [秋, 竹]
+        4: [冬, 菊]
+
+fan_types:
+  # ── 基础番型 ──
+  - { name: 碰碰胡, base_fan: 2 }
+  - { name: 混一色, base_fan: 4, excludes: [缺一门] }
+  - { name: 清一色, base_fan: 8, excludes: [缺一门, 无字] }
+  - { name: 七对, base_fan: 4, excludes: [门前清, 单钓将] }
+  - { name: 全求人, base_fan: 4 }
+  - { name: 字一色, base_fan: 16, excludes: [缺一门, 混一色, 碰碰胡] }
+  # ── 事件番型 ──
+  - { name: 杠上开花, base_fan: 1, excludes: [海底捞月] }
+  - { name: 海底捞月, base_fan: 1 }
+  - { name: 抢杠胡, base_fan: 1 }
+  - { name: 天胡, base_fan: 32 }
+  - { name: 地胡, base_fan: 16 }
+  # ── 兜底 ──
+  - { name: 鸡胡, base_fan: 1 }
+
+fan_stacking: add
+max_fan: 999
+
+phases:
+  - name: deal
+    type: auto
+    action: deal_cards_with_flowers
+    next: play
+
+  - name: play
+    type: mahjong_turn
+    turn_order: counter_clockwise
+    sub_phases:
+      draw:
+        type: auto
+        action: draw_card
+        on_draw_flower: replace
+        on_empty_deck: exhausted
+      self_action:
+        options:
+          - { action: discard }
+          - { action: an_kong }
+          - { action: bu_kong, condition: has_punged_pair }
+          - { action: win, condition: can_win_tumo }
+      others_reaction:
+        options:
+          # 上海敲麻不可吃 — chi 不在此列表中
+          - { action: pung, priority: 2, condition: has_two_same }
+          - { action: ming_kong, priority: 3, condition: has_three_same }
+          - { action: win, priority: 4, condition: can_win }
+          - { action: pass, priority: 0 }
+        priority_policy: highest_wins
+        on_win: game_over
+    end_conditions:
+      - { type: player_wins, action: settle }
+      - { type: deck_exhausted, action: draw_game }
+
+  - name: settle
+    type: auto
+    action: calculate_scores
+    next: null
+
+scoring:
+  mode: fan_table
+  max_cap: 999