chore(release): prepare v0.7.0

trex_core/adapters/ledger/portfolio_hub.py

@@ -4,7 +4,8 @@ Live portfolio-hub contract (verified against openapi, REQ-017 CHG-04):
   POST /v1/portfolios/{portfolio_id}/ledger/trades
   body keys: side, quantity, price, fee_amount, tax_amount, executed_at,
              execution_id, order_id
-  - 2xx (201)        => recorded (or duplicate accepted idempotently)
+  - 201/status=new   => recorded
+  - 200/status=duplicate => duplicate accepted idempotently
   - 409              => LedgerConflictError (operator resolution)
   - 404/400/422      => LedgerPermanentError (dcy-015/REQ-017 — retry can't fix:
                         portfolio not registered / malformed trade)
@@ -94,18 +95,18 @@ class PortfolioHubLedger:
             raise LedgerRetryableError(f"portfolio-hub network error: {exc!s}") from exc
 
         if 200 <= resp.status_code < 300:
-            # orbit convention: response body may carry a "duplicate" flag when
-            # the server has already recorded this execution_id idempotently.
+            # portfolio-hub returns status="duplicate" for an idempotent replay.
+            # Keep the former boolean marker compatible with older deployments.
             try:
                 body = resp.json() if resp.content else {}
             except ValueError:
                 body = {}
             if not isinstance(body, dict):
                 body = {}
-            result = (
-                LedgerWriteResult.DUPLICATE_OK if body.get("duplicate") is True
-                else LedgerWriteResult.NEW
+            is_duplicate = (
+                body.get("status") == "duplicate" or body.get("duplicate") is True
             )
+            result = LedgerWriteResult.DUPLICATE_OK if is_duplicate else LedgerWriteResult.NEW
             # dcy-018 / REQ-017 (option D, portfolio-hub#8): root flat authoritative
             # cash/quantity after the write — present on new(201) + duplicate(200).
             return LedgerWriteOutcome(