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

lib/processingScheduler.ts

@@ -7,14 +7,14 @@ import {
 } from "@prisma/client";
 import cron from "node-cron";
 import fetch from "node-fetch";
-import { withRetry } from "./database-retry.js";
-import { prisma } from "./prisma.js";
+import { withRetry } from "./database-retry";
+import { prisma } from "./prisma";
 import {
   completeStage,
   failStage,
   getSessionsNeedingProcessing,
   startStage,
-} from "./processingStatusManager.js";
+} from "./processingStatusManager";
 import { getSchedulerConfig } from "./schedulerConfig";
 
 const OPENAI_API_KEY = process.env.OPENAI_API_KEY;
@@ -137,14 +137,18 @@ interface ProcessingResult {
 
 interface SessionMessage {
   id: string;
-  timestamp: Date;
+  sessionId: string;
+  timestamp: Date | null;
   role: string;
   content: string;
   order: number;
+  createdAt: Date;
 }
 
 interface SessionForProcessing {
   id: string;
+  companyId: string;
+  endTime: Date;
   messages: SessionMessage[];
 }
 
@@ -250,7 +254,9 @@ async function processQuestions(
   });
 
   // Filter and prepare unique questions
-  const uniqueQuestions = [...new Set(questions.filter((q) => q.trim()))];
+  const uniqueQuestions = Array.from(
+    new Set(questions.filter((q) => q.trim()))
+  );
   if (uniqueQuestions.length === 0) return;
 
   // Batch create questions (skip duplicates)
@@ -527,7 +533,7 @@ async function processSingleSession(
     const transcript = session.messages
       .map(
         (msg: SessionMessage) =>
-          `[${new Date(msg.timestamp)
+          `[${new Date(msg.timestamp ?? msg.createdAt)
             .toLocaleString("en-GB", {
               day: "2-digit",
               month: "2-digit",
@@ -710,9 +716,8 @@ async function processUnprocessedSessionsInternal(
 
   // Filter to only sessions that have messages
   const sessionsWithMessages = sessionsToProcess.filter(
-    (session): session is SessionForProcessing =>
-      session.messages && session.messages.length > 0
-  );
+    (session) => session.messages && session.messages.length > 0
+  ) as SessionForProcessing[];
 
   if (sessionsWithMessages.length === 0) {
     process.stdout.write(