chore(release): 1.6.0 [skip ci]

# [1.6.0](https://github.com/stirling-image/stirling-image/compare/v1.5.3...v1.6.0) (2026-04-04)

### Features

* lightweight Docker image without AI/ML tools (:lite tag) ([449a2fc](https://github.com/stirling-image/stirling-image/commit/449a2fc319e97cddfa71c29556e2d433dde78d6d)), closes [#1](https://github.com/stirling-image/stirling-image/issues/1)

packages/ai/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@stirling-image/ai",
-  "version": "1.5.3",
+  "version": "1.6.0",
   "private": true,
   "type": "module",
   "main": "./src/index.ts",

packages/image-engine/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@stirling-image/image-engine",
-  "version": "1.5.3",
+  "version": "1.6.0",
   "private": true,
   "type": "module",
   "main": "./src/index.ts",

packages/shared/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@stirling-image/shared",
-  "version": "1.5.3",
+  "version": "1.6.0",
   "private": true,
   "type": "module",
   "main": "./src/index.ts",

packages/shared/src/constants.ts

@@ -354,7 +354,7 @@ export const SOCIAL_MEDIA_PRESETS: SocialMediaPreset[] = [
   { platform: "Threads", name: "Post Image", width: 1080, height: 1080 },
 ];
 
-export const APP_VERSION = "1.5.3";
+export const APP_VERSION = "1.6.0";
 
 /**
  * Tool IDs that require the Python sidecar (AI/ML tools).