lint: re-enable E402; remove sys.path hacks; drop unused pytest imports in tests

.flake8

@@ -1,6 +1,3 @@
 [flake8]
 exclude = .git, .venv, output, static/icons
 max-line-length = 160
-per-file-ignores =
-    tests/test_*.py: E402
-

tests/test_analyze.py

@@ -1,12 +1,6 @@
-import sys
 import json
 import sqlite3
 from pathlib import Path
-
-import pytest  # noqa: F401
-
-REPO_ROOT = Path(__file__).resolve().parents[1]
-sys.path.append(str(REPO_ROOT))
 from scripts import analyze
 from scripts import generate_reports as gr
 

tests/test_nginx_config.py

@@ -1,9 +1,5 @@
-import sys
 from pathlib import Path
-import pytest  # noqa: F401
 
-REPO_ROOT = Path(__file__).resolve().parents[1]
-sys.path.append(str(REPO_ROOT))
 from scripts import nginx_config as nc
 
 

tests/test_reports.py

@@ -1,14 +1,10 @@
 import sqlite3
 from pathlib import Path
 import json
-import sys
 from datetime import datetime
 
 import pytest
 from typer.testing import CliRunner
-
-REPO_ROOT = Path(__file__).resolve().parents[1]
-sys.path.append(str(REPO_ROOT))
 from scripts import generate_reports as gr
 
 
@@ -205,7 +201,9 @@ def test_generate_root_index(tmp_path, sample_reports, monkeypatch):
 def test_generated_marker_written(tmp_path, monkeypatch):
     out_dir = tmp_path / "output"
     monkeypatch.setattr(gr, "OUTPUT_DIR", out_dir)
-    monkeypatch.setattr(gr, "TEMPLATE_DIR", REPO_ROOT / "templates")
+    monkeypatch.setattr(
+        gr, "TEMPLATE_DIR", Path(__file__).resolve().parents[1] / "templates"
+    )
     monkeypatch.setattr(gr, "GENERATED_MARKER", out_dir / "generated.txt")
     monkeypatch.setattr(gr, "_copy_icons", lambda: None)
     (out_dir / "hourly").mkdir(parents=True)