feat(taxonomy): add rust sidecar compact surface pipeline

contracts/xbrl-hydrate-v1.schema.json

@@ -0,0 +1,57 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://fiscal.ai/contracts/xbrl-hydrate-v1.schema.json",
+  "title": "Fiscal XBRL Hydrate Filing v1",
+  "type": "object",
+  "properties": {
+    "filingId": { "type": "integer" },
+    "ticker": { "type": "string" },
+    "cik": { "type": "string" },
+    "accessionNumber": { "type": "string" },
+    "filingDate": { "type": "string", "format": "date" },
+    "filingType": { "type": "string", "enum": ["10-K", "10-Q"] },
+    "filingUrl": { "type": ["string", "null"] },
+    "primaryDocument": { "type": ["string", "null"] },
+    "cacheDir": { "type": "string" }
+  },
+  "required": [
+    "filingId",
+    "ticker",
+    "cik",
+    "accessionNumber",
+    "filingDate",
+    "filingType",
+    "cacheDir"
+  ],
+  "$defs": {
+    "statementKind": {
+      "type": "string",
+      "enum": ["income", "balance", "cash_flow", "equity", "comprehensive_income"]
+    },
+    "surfaceRow": {
+      "type": "object",
+      "properties": {
+        "key": { "type": "string" },
+        "label": { "type": "string" },
+        "category": { "type": "string" },
+        "order": { "type": "integer" },
+        "unit": { "type": "string" },
+        "values": {
+          "type": "object",
+          "additionalProperties": {
+            "type": ["number", "null"]
+          }
+        },
+        "sourceConcepts": {
+          "type": "array",
+          "items": { "type": "string" }
+        },
+        "sourceFactIds": {
+          "type": "array",
+          "items": { "type": "integer" }
+        }
+      },
+      "required": ["key", "label", "category", "order", "unit", "values", "sourceConcepts", "sourceFactIds"]
+    }
+  }
+}