perf(ops): streamline log capture and git error reporting

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

trex_core/adapters/persistence/ops_checks.py

@@ -15,6 +15,7 @@ import hashlib
 import json
 import shutil
 import subprocess
+from collections import deque
 from datetime import UTC, date, datetime
 from pathlib import Path
 from typing import Any
@@ -56,11 +57,18 @@ def find_ledger_gap_slots(
 
 
 def _run_git(checkout_dir: Path, *args: str) -> str:
-    return subprocess.check_output(
-        ["git", *args],
-        cwd=str(checkout_dir),
-        text=True,
-    ).strip()
+    command = ["git", *args]
+    try:
+        return subprocess.check_output(
+            command,
+            cwd=str(checkout_dir),
+            text=True,
+        ).strip()
+    except subprocess.CalledProcessError as exc:
+        joined = " ".join(command)
+        raise RuntimeError(
+            f"git command failed in checkout={checkout_dir}: {joined}"
+        ) from exc
 
 
 def _porcelain_paths(status_output: str) -> list[str]:
@@ -125,17 +133,18 @@ def _capture_command(command: list[str], checkout_dir: Path) -> dict:
 def _capture_broker_side_effect_logs(log_path: Path) -> dict:
     if not log_path.exists():
         return {"path": str(log_path), "exists": False, "matches": []}
-    matches: list[str] = []
-    for line in log_path.read_text(encoding="utf-8", errors="replace").splitlines():
-        lowered = line.lower()
-        if (
-            "event=order_submit" in lowered
-            or "event=order_fill" in lowered
-            or "event=order_reject" in lowered
-            or "cancel" in lowered
-        ):
-            matches.append(line)
-    return {"path": str(log_path), "exists": True, "matches": matches[-200:]}
+    matches: deque[str] = deque(maxlen=200)
+    with log_path.open("r", encoding="utf-8", errors="replace") as fp:
+        for line in fp:
+            lowered = line.lower()
+            if (
+                "event=order_submit" in lowered
+                or "event=order_fill" in lowered
+                or "event=order_reject" in lowered
+                or "cancel" in lowered
+            ):
+                matches.append(line.rstrip("\n"))
+    return {"path": str(log_path), "exists": True, "matches": list(matches)}
 
 
 def collect_release_provenance(