docs(beautify): add API docs, OpenAPI spec, LLM docs, update README

Add beautify tool endpoint to OpenAPI spec with full parameter
documentation. Add tool to REST API docs Layout & Composition table.
Update tool count from 49 to 50 across README, docs homepage,
architecture docs, VitePress config, OpenAPI spec, and LLM docs
generator.

apps/docs/.vitepress/config.mts

@@ -4,7 +4,7 @@ import llmstxt from "vitepress-plugin-llms";
 export default defineConfig({
   title: "SnapOtter",
   description:
-    "Documentation for SnapOtter - A Self Hosted Image Manipulator. 49 tools, local AI, pipelines, REST API.",
+    "Documentation for SnapOtter - A Self Hosted Image Manipulator. 50 tools, local AI, pipelines, REST API.",
   base: "/",
   appearance: { initialValue: "light" },
   srcDir: ".",
@@ -48,7 +48,7 @@ export default defineConfig({
 `,
         customTemplateVariables: {
           description:
-            "SnapOtter is a self-hosted, open-source image processing platform with 49 tools including AI/ML. Runs in a single Docker container with GPU auto-detection.",
+            "SnapOtter is a self-hosted, open-source image processing platform with 50 tools including AI/ML. Runs in a single Docker container with GPU auto-detection.",
           details:
             "Resize, compress, convert, remove backgrounds, upscale, run OCR, and more - without sending images to external services.",
         },

apps/docs/api/rest.md

@@ -184,6 +184,7 @@ All AI tools run on your hardware (CPU or NVIDIA GPU). No internet required.
 | `stitch` | Stitch / Combine | `direction` (horizontal/vertical/grid), `gap`, `backgroundColor`, `alignment` - multi-file |
 | `split` | Image Splitting | `mode` (grid/rows/cols), `rows`, `cols`, `tileWidth`, `tileHeight` |
 | `border` | Border & Frame | `width`, `color`, `style` (solid/gradient/pattern), `borderRadius`, `padding`, `shadow` |
+| `beautify` | Beautify Screenshot | `backgroundType` (solid/linear-gradient/radial-gradient/image/transparent), `gradientStops`, `padding`, `borderRadius`, `shadowPreset`, `frame` (none/macos-light/macos-dark/windows-light/windows-dark/browser-light/browser-dark/iphone/macbook/ipad/...), `socialPreset` (none/twitter/linkedin/instagram-square/instagram-story/facebook/producthunt), `watermarkText`, `outputFormat` |
 
 ### Format & Conversion
 

apps/docs/guide/architecture.md

@@ -43,7 +43,7 @@ Shared TypeScript types, constants (like `APP_VERSION` and tool definitions), an
 
 ### API (`apps/api`)
 
-A Fastify v5 server exposing 49 tool routes (33 standard image operations + 15 AI-powered) that handles:
+A Fastify v5 server exposing 50 tool routes (34 standard image operations + 15 AI-powered + editor) that handles:
 - File uploads, temporary workspace management, and persistent file storage
 - User file library with version chains (`user_files` table) -- each processed result links back to its source file and records which tool was applied, with auto-generated thumbnails for the Files page
 - Tool execution (routes each tool request to the image engine or AI bridge)

apps/docs/index.md

@@ -4,7 +4,7 @@ layout: home
 hero:
   name: "SnapOtter"
   text: "A Self Hosted Image Manipulator"
-  tagline: 49 tools. Local AI. No cloud. Your images never leave your home.
+  tagline: 50 tools. Local AI. No cloud. Your images never leave your home.
   actions:
     - theme: brand
       text: Get started
@@ -14,7 +14,7 @@ hero:
       link: /api/rest
 
 features:
-  - title: 49 Image Tools
+  - title: 50 Image Tools
     details: Resize, crop, compress, convert, watermark, color adjust, vectorize, create GIFs, build collages, generate passport photos, find duplicates, and more.
   - title: Local AI
     details: 15 AI-powered tools - remove backgrounds, upscale, enhance images, restore and colorize old photos, erase objects, blur faces, enhance faces, extract text (OCR), fix fake transparency. All on your hardware, no internet required.