Archive stale documentation

docs/README.md

@@ -14,14 +14,14 @@ This folder contains project documentation for Overland Controller.
 
 - `project-state.md` - Current project state
 - `roadmap.md` - Roadmap and future plans
-- `hardware-status.md` - Hardware status and bring-up notes
 - `decisions.md` - Architecture and implementation decisions
 
 ## Technical References
 
 - `dashboard-esp32s3.md` - Current Waveshare ESP32-S3 dashboard plan
-- `protocol.md` - Legacy UART protocol reference
-- `wiring.md` - Older wiring notes; verify against `HARDWARE.md` before use
+- `CONFIGURATION.md` - Configuration model and setup concepts
+- `TEMP_SETUP.md` - DS18B20 temperature sensor setup
+- `UART_PROTOCOL.md` - Optional UART diagnostics protocol
 
 ## Archive
 
@@ -29,7 +29,6 @@ Older or duplicate documents have been moved to `archive/`.
 
 Archived documents are kept for history, but the primary documents above should be treated as the current source of truth.
 
-
 ## Parity
 
 - `PARITY_MATRIX.md` - Command parity across USB serial, UART JSON, and HTTP API