fix: add tests/pytest.ini + move Path import to top (completes 2308f24)

The prior commit only recorded the conftest.py deletion; this adds the actual
fix: tests/pytest.ini (pins rootdir to tests/ so the standard pytest command
no longer crashes on the dead /root/bin symlink) and the PEP8 import move.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

pos_briefing.py

@@ -12,6 +12,7 @@ import requests
 import yfinance as yf
 from datetime import datetime
 from zoneinfo import ZoneInfo
+from pathlib import Path
 
 # ── Config ────────────────────────────────────────────────────────────────────
 CONFIG_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)), "config.json")
@@ -33,8 +34,6 @@ REMOTE_PASS   = config["remote_pass"]
 PRINTER_IP    = config["printer_ip"]
 PRINTER_PORT  = int(config.get("printer_port", 9100))
 
-from pathlib import Path
-
 PRINTER_MAC    = config.get("printer_mac", "").lower()
 PRINTER_SUBNET = config.get("printer_subnet", "192.168.0")
 CACHE_DIR      = Path.home() / ".cache" / "pos-briefing"