fix(ci): docs-sync, openapi version, changelog format, pre-commit hook

- docs/openapi.yaml: update info.version from 2.3.6 to 2.4.1 (fixes CI check)
- CHANGELOG.md: add '## [Unreleased]' section as first heading (required by check-docs-sync)
- scripts/check-docs-sync.mjs: fix regex to accept both hyphen (-) and em-dash (—)
  as date separators in changelog headings (standard Keep a Changelog format)
- .husky/pre-commit: add 'node scripts/check-docs-sync.mjs' to catch version
  mismatches locally before push

.husky/pre-commit

@@ -1 +1,2 @@
 npx lint-staged
+node scripts/check-docs-sync.mjs

CHANGELOG.md

@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [2.4.1] - 2026-03-13
 
 ### 🐛 Fix

docs/openapi.yaml

@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: OmniRoute API
-  version: 2.3.6
+  version: 2.4.1
   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-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "omniroute",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "omniroute",
-      "version": "2.4.0",
+      "version": "2.4.1",
       "hasInstallScript": true,
       "license": "MIT",
       "workspaces": [

scripts/check-docs-sync.mjs

@@ -43,7 +43,7 @@ function extractOpenApiVersion(content) {
 }
 
 function extractChangelogSections(content) {
-  const headings = [...content.matchAll(/^##\s+\[([^\]]+)\](?:\s+—\s+.*)?$/gm)];
+  const headings = [...content.matchAll(/^##\s+\[([^\]]+)\](?:\s+[-—–].*)?$/gm)];
   return headings.map((match) => match[1]);
 }