feat(portfolios): add unified ledger history API

tests/test_auth_surface_after_client_deprecation.py

@@ -3,41 +3,32 @@
 from __future__ import annotations
 
 import subprocess
-import sys
+
+# REQ-016 AC-1: 후보 소스에 issue_client_token / CreateClientTokenRequest / IssuedClientTokenResponse 잔여 없음
 
 
-# REQ-016 AC-1: codebase에 issue_client_token / CreateClientTokenRequest / IssuedClientTokenResponse 잔여 없음
-
-def test_no_issue_client_token_symbol_in_codebase() -> None:
+def _source_symbol_matches(symbol: str) -> list[str]:
     result = subprocess.run(
-        ["grep", "-r", "--include=*.py", "-l", "issue_client_token"],
+        ["grep", "-r", "--exclude-dir=temp", "--exclude-dir=.git", "--exclude-dir=.venv", "--include=*.py", "-l", symbol],
         capture_output=True,
+        check=False,
         text=True,
         cwd=str(__import__("pathlib").Path(__file__).parent.parent),
     )
-    matches = [line for line in result.stdout.splitlines() if not line.startswith("tests/test_auth_surface")]
+    return [line for line in result.stdout.splitlines() if not line.startswith("tests/test_auth_surface")]
+
+def test_no_issue_client_token_symbol_in_codebase() -> None:
+    matches = _source_symbol_matches("issue_client_token")
     assert matches == [], f"issue_client_token 잔여 참조 발견: {matches}"
 
 
 def test_no_create_client_token_request_symbol_in_codebase() -> None:
-    result = subprocess.run(
-        ["grep", "-r", "--include=*.py", "-l", "CreateClientTokenRequest"],
-        capture_output=True,
-        text=True,
-        cwd=str(__import__("pathlib").Path(__file__).parent.parent),
-    )
-    matches = [line for line in result.stdout.splitlines() if not line.startswith("tests/test_auth_surface")]
+    matches = _source_symbol_matches("CreateClientTokenRequest")
     assert matches == [], f"CreateClientTokenRequest 잔여 참조 발견: {matches}"
 
 
 def test_no_issued_client_token_response_symbol_in_codebase() -> None:
-    result = subprocess.run(
-        ["grep", "-r", "--include=*.py", "-l", "IssuedClientTokenResponse"],
-        capture_output=True,
-        text=True,
-        cwd=str(__import__("pathlib").Path(__file__).parent.parent),
-    )
-    matches = [line for line in result.stdout.splitlines() if not line.startswith("tests/test_auth_surface")]
+    matches = _source_symbol_matches("IssuedClientTokenResponse")
     assert matches == [], f"IssuedClientTokenResponse 잔여 참조 발견: {matches}"