docs: release v1.31.0 — unit test infrastructure

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to PinchChat are documented here.
 
 Format based on [Keep a Changelog](https://keepachangelog.com/), with [Conventional Commits](https://www.conventionalcommits.org/).
 
+## [1.31.0] — 2026-02-13
+### Added
+- Unit test infrastructure with Vitest — 27 tests across 3 suites (relativeTime, sessionDisplayName, messagesToMarkdown)
+- `npm test` and `npm run test:watch` scripts
+- Test step added to CI workflow (runs on all Node.js matrix versions)
+
 ## [1.30.1] — 2026-02-13
 ### Fixed
 - Added missing `aria-label` attributes to icon-only buttons (sidebar close, search clear, JSON copy) for screen reader accessibility

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "pinchchat",
-  "version": "1.30.1",
+  "version": "1.31.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "pinchchat",
-      "version": "1.30.1",
+      "version": "1.31.0",
       "license": "MIT",
       "dependencies": {
         "@radix-ui/react-collapsible": "^1.1.12",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pinchchat",
-  "version": "1.30.1",
+  "version": "1.31.0",
   "description": "A sleek, dark-themed webchat UI for OpenClaw — monitor sessions, stream responses, and inspect tool calls in real-time.",
   "type": "module",
   "repository": {