fix: use Docker Hub as primary one-liner (GHCR is private)

GHCR packages default to private and require docker login. Switch the
primary quick-start command to Docker Hub (snapotter/snapotter) which
is publicly accessible. GHCR remains available as an alternative.

README.md

@@ -25,7 +25,7 @@
 ## Quick Start
 
 ```bash
-docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data ghcr.io/snapotter-hq/snapotter:latest
+docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data snapotter/snapotter:latest
 ```
 Open http://localhost:1349 in your browser.
 
@@ -36,7 +36,7 @@ Open http://localhost:1349 in your browser.
 Add `--gpus all` for GPU-accelerated background removal, upscaling, and OCR:
 
 ```bash
-docker run -d --name SnapOtter -p 1349:1349 --gpus all -v SnapOtter-data:/data ghcr.io/snapotter-hq/snapotter:latest
+docker run -d --name SnapOtter -p 1349:1349 --gpus all -v SnapOtter-data:/data snapotter/snapotter:latest
 ```
 
 > Requires an NVIDIA GPU and [Container Toolkit](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/latest/install-guide.html). Falls back to CPU if no GPU is found. See [Docker Tags](https://docs.snapotter.com/guide/docker-tags) for benchmarks and Docker Compose examples.

apps/docs/guide/getting-started.md

@@ -3,14 +3,14 @@
 ## Quick Start
 
 ```bash
-docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data ghcr.io/snapotter-hq/snapotter:latest
+docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data snapotter/snapotter:latest
 ```
 
 Open [http://localhost:1349](http://localhost:1349) in your browser.
 
-::: tip Also on Docker Hub
+::: tip Also on GHCR
 ```bash
-docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data snapotter/snapotter:latest
+docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data ghcr.io/snapotter-hq/snapotter:latest
 ```
 
 Both registries publish the same image on every release.
@@ -40,7 +40,7 @@ Requires the [NVIDIA Container Toolkit](https://docs.nvidia.com/datacenter/cloud
 ```yaml
 services:
   SnapOtter:
-    image: ghcr.io/snapotter-hq/snapotter:latest  # or snapotter/snapotter:latest
+    image: snapotter/snapotter:latest  # or ghcr.io/snapotter-hq/snapotter:latest
     ports:
       - "1349:1349"
     volumes:

apps/docs/index.md

@@ -31,7 +31,7 @@ features:
 <div class="quick-start-banner">
 
 ```bash
-docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data ghcr.io/snapotter-hq/snapotter:latest
+docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data snapotter/snapotter:latest
 ```
 
 </div>

apps/landing/src/components/how-it-works.tsx

@@ -6,7 +6,7 @@ import { useState } from "react";
 import { FadeIn } from "./fade-in";
 
 const command =
-  "docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data ghcr.io/snapotter-hq/snapotter:latest";
+  "docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data snapotter/snapotter:latest";
 
 export function HowItWorks() {
   const [copied, setCopied] = useState(false);

tests/unit/landing/how-it-works.test.tsx

@@ -27,7 +27,7 @@ beforeEach(() => {
 afterEach(cleanup);
 
 const DOCKER_COMMAND =
-  "docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data ghcr.io/snapotter-hq/snapotter:latest";
+  "docker run -d --name SnapOtter -p 1349:1349 -v SnapOtter-data:/data snapotter/snapotter:latest";
 
 describe("HowItWorks", () => {
   it("renders the section heading", () => {