chore: rebrand repo from siddharthksah to stirling-image org

Update all references across docs, workflows, UI components, and config
to point to the new GitHub org (stirling-image/stirling-image) and Docker
Hub account (stirlingimage/stirling-image) ahead of repo transfer.

apps/docs/public/llms-full.txt

@@ -2,8 +2,8 @@
 
 Self-hosted, open-source image processing platform with 30+ tools. Runs in a single Docker container. Resize, compress, convert, remove backgrounds, upscale, run OCR, and more — without sending images to external services.
 
-- GitHub: https://github.com/siddharthksah/Stirling-Image
-- Docs: https://siddharthksah.github.io/Stirling-Image/
+- GitHub: https://github.com/stirling-image/stirling-image
+- Docs: https://stirling-image.github.io/stirling-image/
 - License: MIT
 
 ---
@@ -19,7 +19,7 @@ docker run -d \
   --name stirling-image \
   -p 1349:1349 \
   -v stirling-data:/data \
-  siddharth123sk/stirling-image:latest
+  stirlingimage/stirling-image:latest
 ```
 
 Open `http://localhost:1349` in your browser. Log in with `admin` / `admin`.
@@ -31,7 +31,7 @@ Create a `docker-compose.yml`:
 ```yaml
 services:
   stirling-image:
-    image: siddharth123sk/stirling-image:latest
+    image: stirlingimage/stirling-image:latest
     container_name: stirling-image
     ports:
       - "1349:1349"
@@ -58,8 +58,8 @@ docker compose up -d
 Requirements: Node.js 22+, pnpm 9+, Python 3.10+
 
 ```bash
-git clone https://github.com/siddharthksah/Stirling-Image.git
-cd Stirling-Image
+git clone https://github.com/stirling-image/stirling-image.git
+cd stirling-image
 pnpm install
 pnpm dev
 ```
@@ -239,7 +239,7 @@ Keys are prefixed with `si_` followed by 96 hex characters.
 ```yaml
 services:
   stirling-image:
-    image: siddharth123sk/stirling-image:latest
+    image: stirlingimage/stirling-image:latest
     container_name: stirling-image
     ports:
       - "1349:1349"