chore(release): v2.8.3 — Czech i18n, SSE protocol fix

- #482: Czech language + VM guide EN translation (@zen0bit)
- #483: Stop sending trailing data: null after [DONE]

CHANGELOG.md

@@ -4,6 +4,25 @@
 
 ---
 
+## [2.8.3] — 2026-03-19
+
+> Sprint: Czech i18n, SSE protocol fix, VM guide translation.
+
+### Features
+
+- **Czech Language** (#482): Full Czech (cs) i18n — 22 docs, 2606 UI strings, language switcher updates (@zen0bit)
+- **VM Deployment Guide**: Translated from Portuguese to English as the source document (@zen0bit)
+
+### Bug Fixes
+
+- **SSE Protocol** (#483): Stop sending trailing `data: null` after `[DONE]` signal — fixes `AI_TypeValidationError` in strict AI SDK clients (Zod-based validators)
+
+### Merged PRs
+
+- #482 — Add Czech language + Fix VM_DEPLOYMENT_GUIDE.md English source (@zen0bit)
+
+---
+
 ## [2.8.2] — 2026-03-19
 
 > Sprint: 2 merged PRs, model aliases routing fix, log export, and issue triage.

docs/openapi.yaml

@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: OmniRoute API
-  version: 2.8.2
+  version: 2.8.3
   description: |
     OmniRoute is a local-first AI API proxy router. It provides an OpenAI-compatible
     endpoint that routes requests to multiple AI providers with load balancing,

package.json

@@ -1,6 +1,6 @@
 {
   "name": "omniroute",
-  "version": "2.8.2",
+  "version": "2.8.3",
   "description": "Smart AI Router with auto fallback — route to FREE & cheap models, zero downtime. Works with Cursor, Cline, Claude Desktop, Codex, and any OpenAI-compatible tool.",
   "type": "module",
   "bin": {