BoltClam 1.0.0: ClamAV desktop protection with Bolt sign-in

Adds the PyQt6 Windows client (Homepage, Scan & results, About & updates, Settings), ClamAV scanning and quarantine, browser-download watch with an exclusive scan gate, Bolt loopback/PKCE sign-in with DPAPI key storage, Gitea release feed with checksum verification, opt-in diagnostics, and Windows/portable build tooling.

Co-Authored-By: Claude Code <noreply@anthropic.com>

tests/conftest.py

@@ -0,0 +1,32 @@
+"""Test bootstrap: never touch the real BoltClam profile or Downloads."""
+
+from __future__ import annotations
+
+import os
+import sys
+from pathlib import Path
+
+os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / "src"))
+
+import pytest  # noqa: E402
+
+from boltclam import paths  # noqa: E402
+
+
+@pytest.fixture
+def isolated_env(tmp_path: Path, monkeypatch) -> Path:
+    monkeypatch.setenv("BOLTCLAM_CONFIG_DIR", str(tmp_path / "config"))
+    monkeypatch.setenv("BOLTCLAM_DATA_DIR", str(tmp_path / "data"))
+    paths.ensure_dirs()
+    return tmp_path
+
+
+@pytest.fixture(scope="session")
+def qapp():
+    from PyQt6.QtWidgets import QApplication
+
+    app = QApplication.instance() or QApplication([])
+    return app