chore: release v1.2.1 — CellErrorBoundary fix, PDF export patches, SPA routing

Author: Asif Ansari

CHANGELOG.md

@@ -5,6 +5,23 @@
 
 ---
 
+## [1.2.1] — 2026-09-07
+
+### Fixed
+- `CellErrorBoundary` now accepts a `renderFn: () => React.ReactNode` prop and calls it
+  inside its own `render()`, so React correctly catches thrown errors from `renderCell`.
+  Previously the call happened in the parent's render phase — before the boundary — causing
+  the entire app to crash instead of showing a per-cell error indicator.
+- `exportToPdf` double-cast through `unknown` to satisfy the installed `jspdf` TypeScript
+  types (the library's class does not expose `autoTable`/`lastAutoTable` in its official
+  type definitions).
+- Added `jspdf` and `jspdf-autotable` to `devDependencies` so local development and demo
+  builds work without a manual `npm install`.
+- Deploy workflow now copies `index.html` → `404.html` so GitHub Pages serves the SPA for
+  direct URL access to any demo route.
+
+---
+
 ## [1.2.0] — 2026-09-03
 
 ### Added

CLAUDE.md

@@ -13,7 +13,7 @@ This file is auto-loaded by Claude Code and other AI coding assistants. It provi
 - **Tests:** Vitest 4 + `@testing-library/react` (`renderHook` for hooks, component tests for UI)
 - **Build:** Vite (library mode). `npm run build` produces `dist/opengridx.es.js` and `dist/opengridx.umd.js`.
 - **Lint:** `npm run lint` (ESLint). Must pass before every commit.
-- **Current version:** 1.2.0
+- **Current version:** 1.2.1
 
 ---
 
@@ -127,7 +127,7 @@ Full doc: `docs/architecture/grid-row-meta.md`
 
 ---
 
-## v1.2.0 — significant changes
+## v1.2.1 — significant changes
 
 - **`exportToPdf`** — native PDF export via optional peer deps `jspdf` + `jspdf-autotable`; lazy-loaded, zero bundle impact for non-PDF consumers
 - **`PdfExportOptions`** — 12-field interface: fileName, title, logoUrl, orientation, selectedRows, aggregationResult, aggregationModel, filterModel, alternateRowColor, headerBackgroundColor, headerTextColor, fontSize

demo/App.tsx

@@ -143,7 +143,7 @@ export default function App() {
                         <img src={`${import.meta.env.BASE_URL}logo.png`} alt="OpenGridX Logo" className="app-logo" />
                         <h2 className="app-title">
                             OpenGridX
-                            <span className="app-version">v1.2.0</span>
+                            <span className="app-version">v1.2.1</span>
                         </h2>
                     </div>
 

demo/Home.tsx

@@ -62,7 +62,7 @@ export default function Home(_props: HomeProps) {
                 <div className="home-logo-hero">
                     <img src={`${import.meta.env.BASE_URL}banner.png`} alt="OpenGridX Logo" className="home-banner-image" />
                 </div>
-                <span className="home-badge">OpenGridX v1.2.0</span>
+                <span className="home-badge">OpenGridX v1.2.1</span>
                 <p className="home-subtitle">
                     The elite, high-performance DataGrid for modern React.
                     Built to handle massive data with a premium developer experience.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@opencorestack/opengridx",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "OpenGridX: High-performance React data infrastructure. Unlock advanced Row Grouping, Excel Export, and Column Pinning without the usual \"Pro\" gatekeeping. Built for speed, scale, and complete architectural freedom. Fully open, virtualization-ready, and feature-complete.",
   "type": "module",
   "main": "./dist/opengridx.umd.js",