Signals: new pages Signal Faces and Choosing and Placing Signals; sensors as RocNet - Signal Faces: every DB LED signal Hive-Rail draws, each aspect pictured, as faces and panel tiles, with the Viessmann models and the one-red option. - Choosing and Placing Signals: which signal goes where and what it shows, as SpDrS60 panels (two animated), Ks, shunting, the common mistakes, which Viessmann models to buy, wiring them with MobaLedLib, and the sources (Ril 301, EBO §14, Wikipedia, Viessmann, MobaLedLib). - Architecture §2.2: RocNet for what a RocNet tool should understand, JSON for Hive-Rail's own state; RocNet on the Mesh §9: nodes report their detectors as RocNet sensor reports. - Home and Module and Layout Files link and use the new signal tiles. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>