fix: comprehensive TypeScript/build fixes and modernization

- Update tsconfig to ES2024 target and bundler moduleResolution
- Add dynamic imports for chart.js and recharts (bundle optimization)
- Consolidate 17 useState into useReducer in sessions page
- Fix 18 .js extension imports across lib files
- Add type declarations for @rapideditor/country-coder
- Fix platform user types (PlatformUserRole enum)
- Fix Calendar component prop types
- Centralize next-auth type augmentation
- Add force-dynamic to all API routes (prevent build-time prerender)
- Fix Prisma JSON null handling with Prisma.DbNull
- Fix various type mismatches (SessionMessage, ImportRecord, etc.)
- Export ButtonProps from button component
- Update next-themes import path
- Replace JSX.Element with React.ReactElement
- Remove obsolete debug scripts and pnpm lockfile
- Downgrade eslint to v8 for next compatibility

next.config.js

@@ -1,3 +1,8 @@
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
 /**
  * @type {import('next').NextConfig}
  **/
@@ -5,6 +10,8 @@ const nextConfig = {
   reactStrictMode: true,
   // Allow cross-origin requests from specific origins in development
   allowedDevOrigins: ["localhost", "127.0.0.1"],
+  // Set workspace root to this project directory
+  outputFileTracingRoot: __dirname,
 };
 
 export default nextConfig;