feat(agent-office): Tarot 응답 스키마 검증 (T4)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

agent-office/app/tarot/schema.py

@@ -0,0 +1,36 @@
+"""Tarot 응답 스키마 검증 — 누락·빈 필드 reroll 트리거."""
+
+VALID_CONFIDENCE = {"high", "medium", "low"}
+
+
+def validate_interpretation(parsed: dict, spread_type: str) -> tuple[bool, str]:
+    if not isinstance(parsed, dict):
+        return False, "응답이 dict가 아님"
+    for k in ("summary", "cards", "interactions", "advice", "confidence"):
+        if k not in parsed:
+            return False, f"필수 필드 누락: {k}"
+    if parsed.get("confidence") not in VALID_CONFIDENCE:
+        return False, f"confidence 값 비정상: {parsed.get('confidence')}"
+    cards = parsed.get("cards")
+    if not isinstance(cards, list) or not cards:
+        return False, "cards가 빈 배열"
+    for i, c in enumerate(cards):
+        if not isinstance(c, dict):
+            return False, f"cards[{i}] dict 아님"
+        for k in ("position", "card", "reversed", "interpretation", "advice", "evidence"):
+            if k not in c:
+                return False, f"cards[{i}].{k} 누락"
+        ev = c["evidence"]
+        if not isinstance(ev, dict):
+            return False, f"cards[{i}].evidence dict 아님"
+        for k in ("card_meaning_used", "position_logic", "category_lens"):
+            if k not in ev:
+                return False, f"cards[{i}].evidence.{k} 누락"
+            if not isinstance(ev[k], str) or not ev[k].strip():
+                return False, f"cards[{i}].evidence.{k} 빈 문자열"
+    interactions = parsed.get("interactions")
+    if not isinstance(interactions, list):
+        return False, "interactions가 list 아님"
+    if spread_type == "three_card" and len(interactions) == 0:
+        return False, "three_card는 interactions 1개 이상 필요"
+    return True, ""