chore: bump version to 1.17.0 and update docs for release

- Bump all workspace package versions to 1.17.0
- Update APP_VERSION constant and OpenAPI spec
- Update AI tool count from 15 to 16 across docs and i18n
- Update tool table with AI Canvas Expand, Meme Generator, Beautify
- Add image editor, OIDC, and 20 languages to README features
- Add release notes for v1.17.0
- Add JSON-LD structured data and SEO improvements to landing/docs

packages/shared/src/i18n/en.ts

@@ -1651,7 +1651,7 @@ export const en = {
       "Works fully offline.",
       "Unlimited batch processing.",
       "52 image tools.",
-      "15 AI models. Your hardware.",
+      "16 AI models. Your hardware.",
       "Lightning fast. Built on Sharp.",
       "Air-gapped ready.",
       "One Docker container.",