fix: preserve multi-cause reconcile warnings and align slot blocking

Co-authored-by: genichin <4282227+genichin@users.noreply.github.com>

trex_core/adapters/persistence/sql/016_create_slot_reconcile_warning.sql

@@ -1,6 +1,6 @@
 -- BAT-050 / REQ-102: reconcile-warning durable store (dcy-034).
--- PK: slot_id (TEXT, UUID string). pause_store 동형 설계.
--- ON CONFLICT DO UPDATE: 동일 slot_id 재삽입 시 최신 값으로 갱신.
+-- Initial schema; migration 028 upgrades PK to (slot_id, case_code)
+-- so B/C causes can coexist for the same slot.
 CREATE TABLE IF NOT EXISTS slot_reconcile_warning (
     slot_id      TEXT        PRIMARY KEY,
     portfolio_id TEXT        NOT NULL,

trex_core/adapters/persistence/sql/028_preserve_reconcile_warning_cases.sql

@@ -0,0 +1,7 @@
+-- REQ-123 / issue #83:
+-- Preserve simultaneous warning causes by keying warnings per (slot_id, case_code).
+ALTER TABLE slot_reconcile_warning
+    DROP CONSTRAINT IF EXISTS slot_reconcile_warning_pkey;
+
+ALTER TABLE slot_reconcile_warning
+    ADD CONSTRAINT slot_reconcile_warning_pkey PRIMARY KEY (slot_id, case_code);

trex_core/adapters/portfolio/reconcile_warning_store.py

@@ -1,8 +1,4 @@
-"""PostgreSQL-backed durable reconcile-warning store (REQ-102, BAT-050).
-
-pause_store.py와 동형 설계. PK: slot_id. case_code: 'B' | 'C'.
-Survives daemon restart (dcy-034 NFR-1).
-"""
+"""PostgreSQL-backed durable reconcile-warning store (REQ-102, BAT-050)."""
 from __future__ import annotations
 
 from datetime import datetime, timezone
@@ -12,7 +8,7 @@ from trex_core.adapters.persistence.postgresql import _require_psycopg
 
 
 class PostgreSQLReconcileWarningStore:
-    """`slot_reconcile_warning` table CRUD. slot_id PK is the gate (REQ-102)."""
+    """`slot_reconcile_warning` table CRUD keyed by (slot_id, case_code)."""
 
     def __init__(self, dsn: str, *, psycopg_module: Any = None) -> None:
         self._psycopg = _require_psycopg(psycopg_module)
@@ -34,9 +30,8 @@ class PostgreSQLReconcileWarningStore:
                     "INSERT INTO slot_reconcile_warning "
                     "(slot_id, portfolio_id, case_code, actor, reason, created_at, updated_at) "
                     "VALUES (%s, %s, %s, %s, %s, %s, %s) "
-                    "ON CONFLICT (slot_id) DO UPDATE "
+                    "ON CONFLICT (slot_id, case_code) DO UPDATE "
                     "SET portfolio_id = EXCLUDED.portfolio_id, "
-                    "    case_code    = EXCLUDED.case_code, "
                     "    actor        = EXCLUDED.actor, "
                     "    reason       = EXCLUDED.reason, "
                     "    updated_at   = EXCLUDED.updated_at",
@@ -44,13 +39,19 @@ class PostgreSQLReconcileWarningStore:
                 )
                 conn.commit()
 
-    def clear_warned(self, slot_id: str) -> None:
+    def clear_warned(self, slot_id: str, *, case_code: str | None = None) -> None:
         with self._psycopg.connect(self._dsn, autocommit=False) as conn:
             with conn.cursor() as cur:
-                cur.execute(
-                    "DELETE FROM slot_reconcile_warning WHERE slot_id = %s",
-                    (slot_id,),
-                )
+                if case_code is None:
+                    cur.execute(
+                        "DELETE FROM slot_reconcile_warning WHERE slot_id = %s",
+                        (slot_id,),
+                    )
+                else:
+                    cur.execute(
+                        "DELETE FROM slot_reconcile_warning WHERE slot_id = %s AND case_code = %s",
+                        (slot_id, case_code),
+                    )
                 conn.commit()
 
     def is_warned(self, slot_id: str) -> bool:
@@ -65,7 +66,7 @@ class PostgreSQLReconcileWarningStore:
     def list_warned(self) -> set[str]:
         with self._psycopg.connect(self._dsn) as conn:
             with conn.cursor() as cur:
-                cur.execute("SELECT slot_id FROM slot_reconcile_warning")
+                cur.execute("SELECT DISTINCT slot_id FROM slot_reconcile_warning")
                 return {row[0] for row in cur.fetchall()}
 
     def list_c_case_warned(self) -> set[str]:
@@ -73,26 +74,30 @@ class PostgreSQLReconcileWarningStore:
         with self._psycopg.connect(self._dsn) as conn:
             with conn.cursor() as cur:
                 cur.execute(
-                    "SELECT slot_id FROM slot_reconcile_warning WHERE case_code = %s",
+                    "SELECT DISTINCT slot_id FROM slot_reconcile_warning WHERE case_code = %s",
                     ("C",),
                 )
                 return {row[0] for row in cur.fetchall()}
 
     def get_warning_info(self, slot_id: str) -> dict | None:
-        """Return {"portfolio_id", "case_code", "actor", "reason"} or None (REQ-105/106)."""
+        """Return warning info with full active case set, or None."""
         with self._psycopg.connect(self._dsn) as conn:
             with conn.cursor() as cur:
                 cur.execute(
                     "SELECT portfolio_id, case_code, actor, reason "
-                    "FROM slot_reconcile_warning WHERE slot_id = %s LIMIT 1",
+                    "FROM slot_reconcile_warning WHERE slot_id = %s "
+                    "ORDER BY CASE WHEN case_code = 'C' THEN 0 ELSE 1 END, updated_at DESC",
                     (slot_id,),
                 )
-                row = cur.fetchone()
-                if row is None:
+                rows = cur.fetchall()
+                if not rows:
                     return None
+                case_codes = sorted({str(row[1]) for row in rows if row[1]})
+                preferred = rows[0]
                 return {
-                    "portfolio_id": row[0],
-                    "case_code": row[1],
-                    "actor": row[2],
-                    "reason": row[3],
+                    "portfolio_id": preferred[0],
+                    "case_code": preferred[1],
+                    "case_codes": case_codes,
+                    "actor": preferred[2],
+                    "reason": preferred[3],
                 }