Scaffold repo: docs layout, guidelines and initial plan

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013kj58Jugkic783b8ZrtTVZ

README.md

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+---
+type: default
+---
+# Telemetry gateway
+
+Part of **Project Yukart**, making an old 2008 Mitsubishi Z27AG a bit smarter with modern technologies.  
+This file serves as the minimalist portal to other docs
+
+
+## What this repo is about
+
+Runs on the Orin. The network-facing surface for external display clients:
+aggregates and rate-limits bus traffic on their behalf, and fronts the navigation
+HTTP API so a display has one address to talk to.
+
+It is a bus subscriber. It never touches hardware and never transmits on CAN.
+
+- For implementation practice guidelines, refer to the [guidelines](docs/GUIDELINES.md);  
+- For implementation plans and history, refer to [them](docs/impl/);