svrnty-vision/README.md
Svrnty 2a90c3f884 feat: initial scaffold — FastAPI shell + stub vision routers
Phase 4a of the BTE refactor (audit 2026-05-24 §3 V). svrnty-vision is a
sovereign HTTP gateway in front of four vision capabilities — VLM (Spark 2
Qwen3-VL), FLUX image gen (Spark 1 ComfyUI), palette extraction, and
background removal. This commit lays only the scaffold: FastAPI app,
/healthz, four 501-stub routers, pydantic-settings config, pytest smoke.

Real implementations land in Phase 4b. BTE code is untouched in 4a.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-24 13:25:57 -04:00

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# svrnty-vision
Sovereign vision HTTP gateway. FastAPI shell that exposes four endpoints:
| Endpoint | Purpose | Implementation |
|---|---|---|
| `POST /vlm/analyze` | Vision-language model evaluation | Proxies to Spark 2 (Qwen3-VL via vLLM) |
| `POST /flux/render` | Image generation | Proxies to Spark 1 (FLUX on ComfyUI) |
| `POST /palette/extract` | Dominant-color palette | In-process (Pillow + colorthief) |
| `POST /rembg/cutout` | Background removal | In-process (rembg) |
Plus `GET /healthz` for liveness.
## Why it exists
Brand Truth Engine (BTE) is a .NET 10 + Svrnty.CQRS service. Vision tooling
(VLM, image gen, palette, rembg) was originally embedded in BTE with cloud
provider SDKs (Anthropic, OpenAI, Google, Higgsfield). Per the
2026-05-24 refactor audit, that surface is extracted into this sibling repo
so BTE stays narrow and sovereign-first.
## Architecture invariant
**svrnty-vision is a thin HTTP gateway — it does NOT run heavy ML models
in-process.** Qwen3-VL runs on Spark 2 (vLLM). FLUX runs on Spark 1
(ComfyUI). svrnty-vision orchestrates HTTP calls to those services and
normalises the responses for BTE.
The two in-process exceptions (palette, rembg) are CPU-light Python
libraries — Pillow/colorthief and rembg respectively. They land in 4b.
## Status
**Phase 4a (this commit):** scaffold only. All four endpoints return
HTTP 501 Not Implemented. `/healthz` returns 200.
Phase 4b will port the real logic. Phase 4c deletes the corresponding
.NET code from BTE. Phase 4d wires BTE to call svrnty-vision over HTTP.
See `/home/svrnty/workspaces/hermes/sot/01-ROADMAP/BTE-REFACTOR-EXECUTION-PLAN.md`.
## Run
```sh
python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
pip install -e . # required: src/ layout
# either:
python -m svrnty_vision.server
# or:
uvicorn svrnty_vision.server:app --port 8090
curl http://localhost:8090/healthz
# {"status":"ok","version":"0.1.0"}
```
## Test
```sh
pytest tests/
```
## Configuration
Copy `.env.example` to `.env` and edit. All settings have safe defaults
for local development (Spark 1/2 hostnames are placeholders).