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

app/api/admin/database-health/route.ts

@@ -2,6 +2,8 @@
 import { type NextRequest, NextResponse } from "next/server";
 import { checkDatabaseConnection, prisma } from "@/lib/prisma";
 
+export const dynamic = "force-dynamic";
+
 export async function GET(request: NextRequest) {
   try {
     // Check if user has admin access (you may want to add proper auth here)
@@ -36,7 +38,7 @@ export async function GET(request: NextRequest) {
       // Count recent AI requests
       prisma.aIProcessingRequest.count({
         where: {
-          createdAt: {
+          requestedAt: {
             gte: new Date(Date.now() - 24 * 60 * 60 * 1000), // Last 24 hours
           },
         },