Refactor into modular structure with improvements

- Split monolithic intercept.py (15k lines) into modular structure:
  - routes/ - Flask blueprints for each feature
  - templates/ - Jinja2 HTML templates
  - data/ - OUI database, satellite TLEs, detection patterns
  - utils/ - dependencies, process management, logging
  - config.py - centralized configuration with env var support

- Add type hints to function signatures
- Replace bare except clauses with specific exceptions
- Add proper logging module (replaces print statements)
- Add environment variable support (INTERCEPT_* prefix)
- Add test suite with pytest
- Add Dockerfile for containerized deployment
- Add pyproject.toml with ruff/black/mypy config
- Add requirements-dev.txt for development dependencies

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

data/patterns.py

@@ -0,0 +1,39 @@
+# Detection patterns for various device types
+
+# Known beacon prefixes for tracker detection
+AIRTAG_PREFIXES = ['4C:00']  # Apple continuity
+TILE_PREFIXES = ['C4:E7', 'DC:54', 'E4:B0', 'F8:8A']
+SAMSUNG_TRACKER = ['58:4D', 'A0:75']
+
+# Drone detection patterns (SSID patterns)
+DRONE_SSID_PATTERNS = [
+    # DJI
+    'DJI-', 'DJI_', 'Mavic', 'Phantom', 'Spark-', 'Mini-', 'Air-', 'Inspire',
+    'Matrice', 'Avata', 'FPV-', 'Osmo', 'RoboMaster', 'Tello',
+    # Parrot
+    'Parrot', 'Bebop', 'Anafi', 'Disco-', 'Mambo', 'Swing',
+    # Autel
+    'Autel', 'EVO-', 'Dragonfish', 'Lite+', 'Nano',
+    # Skydio
+    'Skydio',
+    # Other brands
+    'Holy Stone', 'Potensic', 'SYMA', 'Hubsan', 'Eachine', 'FIMI',
+    'Xiaomi_FIMI', 'Yuneec', 'Typhoon', 'PowerVision', 'PowerEgg',
+    # Generic drone patterns
+    'Drone', 'UAV-', 'Quadcopter', 'FPV_', 'RC-Drone'
+]
+
+# Drone OUI prefixes (MAC address prefixes for drone manufacturers)
+DRONE_OUI_PREFIXES = {
+    # DJI
+    '60:60:1F': 'DJI', '48:1C:B9': 'DJI', '34:D2:62': 'DJI', 'E0:DB:55': 'DJI',
+    'C8:6C:87': 'DJI', 'A0:14:3D': 'DJI', '70:D7:11': 'DJI', '98:3A:56': 'DJI',
+    # Parrot
+    '90:03:B7': 'Parrot', 'A0:14:3D': 'Parrot', '00:12:1C': 'Parrot', '00:26:7E': 'Parrot',
+    # Autel
+    '8C:F5:A3': 'Autel', 'D8:E0:E1': 'Autel',
+    # Yuneec
+    '60:60:1F': 'Yuneec',
+    # Skydio
+    'F8:0F:6F': 'Skydio',
+}