svc-vision: new repo for the camera; decision 29 (Python for vision)

The live view moved from app-flutter's test tool to svc-vision, running as
yukart-vision.service on the car Orin.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DDwfd6Ki8UfG4hK6W5YpJz

docs/REPOS.md

@@ -27,6 +27,7 @@ contracts repo, not copied into each consumer.
 | [svc-core](gitea:yukart/svc-core) | Acquisition + processing cluster: `recorder` now; `can-bridge`, `obd-poller`, `gnss`, `decoder` to come |
 | [svc-gw](gitea:yukart/svc-gw) | Telemetry gateway — aggregation and the display boundary |
 | [svc-nav](gitea:yukart/svc-nav) | Navigation service — routing and guidance |
+| [svc-vision](gitea:yukart/svc-vision) | Camera: capture and the live view; recording and inference to come |
 | [tool-mapmint](gitea:yukart/tool-mapmint) | Map artifact minting, workstation-side |
 | [tool-mock](gitea:yukart/tool-mock) | Mocks and fixtures — a fake car on a workstation |
 
@@ -133,7 +134,8 @@ docs/BOM.md               only where the repo owns hardware
 
 | Where | Language | Why it is there |
 |---|---|---|
-| `svc-*` — on the Orin | **Rust** | No GC, low resident memory on a shared 8 GB pool, and fast start for the tier-1 capture services |
+| `svc-*` — on the Orin, except `svc-vision` | **Rust** | No GC, low resident memory on a shared 8 GB pool, and fast start for the tier-1 capture services |
+| `svc-vision` — on the Orin | **Python** | Camera pipelines (GStreamer) and inference live in the Python ecosystem (decision 29). Standard library and host packages only, until a dependency earns its place |
 | `tool-*` — off-car | **Python** | Batch work where development speed is the only constraint that binds |
 | `app-flutter` | **Dart** | Flutter |