feat: W2 经济核心+数据管线+灰盒 — Balance Bible v1.0 八表逐值落地，EconomyState/sim 14 门/灰盒主场景/单测（GDScript 待本机引擎验证）

data/schema/balance_tuning.schema.json

@@ -0,0 +1,40 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "balance_tuning.schema.json",
+  "title": "balance_tuning 表 schema v0（全局调参数，Balance Bible v1.0 §1/§3.2/§4/§8）",
+  "description": "架构 §2.1 已列名；容纳七张内容表无归属行的全局参数：三乘区软上限/点击基础值（[B§1/§2.2]）、离线衰减表 + 72h 封顶（[B§8]）、冤煞层 22 层公式参数（[B§3.2]）、宿慧公式/跳过机制/敕封触发/重开曲线（[B§4]）。kind=number 时 num 有效；kind=text 时 text 有效（另一列填 0/空串）。新增参数 = 加行（稳定 ID）。",
+  "x-supported-keywords": [
+    "type", "properties", "required", "items", "enum", "pattern",
+    "minimum", "maximum", "minLength", "minItems", "maxItems",
+    "additionalProperties", "const"
+  ],
+  "x-unique": ["id"],
+  "type": "object",
+  "required": ["sheet", "schema_version", "columns", "rows"],
+  "properties": {
+    "sheet": { "const": "balance_tuning" },
+    "schema_version": { "const": 0 },
+    "columns": {
+      "type": "array",
+      "items": { "type": "string" },
+      "minItems": 5
+    },
+    "rows": {
+      "type": "array",
+      "minItems": 1,
+      "items": {
+        "type": "object",
+        "required": ["id", "kind", "num", "text", "desc_cn"],
+        "properties": {
+          "id": { "type": "string", "pattern": "^tune_[a-z0-9_]+$", "description": "稳定字符串 ID（永不重编号）" },
+          "kind": { "type": "string", "enum": ["number", "text"] },
+          "num": { "type": "number", "minimum": 0, "description": "kind=number 时的值；kind=text 时填 0" },
+          "text": { "type": "string", "description": "kind=text 时的值（如重开曲线 1:0.6:0.4:0.3）；kind=number 时为空串" },
+          "desc_cn": { "type": "string", "minLength": 1 }
+        },
+        "additionalProperties": false
+      }
+    }
+  },
+  "additionalProperties": false
+}