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/importProcessor.ts

@@ -1,41 +1,29 @@
 // SessionImport to Session processor
+import type { Prisma, SessionImport } from "@prisma/client";
 import { ProcessingStage, SentimentCategory } from "@prisma/client";
 import cron from "node-cron";
-import { withRetry } from "./database-retry.js";
+import { withRetry } from "./database-retry";
 import { getSchedulerConfig } from "./env";
-import { prisma } from "./prisma.js";
+import { prisma } from "./prisma";
 import {
   completeStage,
   failStage,
   initializeSession,
   skipStage,
   startStage,
-} from "./processingStatusManager.js";
+} from "./processingStatusManager";
 import {
   fetchTranscriptContent,
   isValidTranscriptUrl,
 } from "./transcriptFetcher";
 
-interface ImportRecord {
-  id: string;
-  companyId: string;
-  startTimeRaw: string;
-  endTimeRaw: string;
-  externalSessionId: string;
-  sessionId?: string;
-  userId?: string;
-  category?: string;
-  language?: string;
-  sentiment?: string;
-  escalated?: boolean;
-  forwardedHr?: boolean;
-  avgResponseTime?: number;
-  messagesSent?: number;
-  fullTranscriptUrl?: string;
-  rawTranscriptContent?: string;
-  aiSummary?: string;
-  initialMsg?: string;
-}
+type ImportRecord = SessionImport & {
+  company: {
+    id: string;
+    csvUsername: string | null;
+    csvPassword: string | null;
+  };
+};
 
 /**
  * Parse European date format (DD.MM.YYYY HH:mm:ss) to JavaScript Date
@@ -245,7 +233,7 @@ async function handleTranscriptFetching(
     );
 
     if (transcriptResult.success) {
-      transcriptContent = transcriptResult.content;
+      transcriptContent = transcriptResult.content ?? null;
       console.log(
         `[Import Processor] ✓ Fetched transcript for ${importRecord.externalSessionId} (${transcriptContent?.length} chars)`
       );
@@ -397,6 +385,15 @@ async function processQueuedImportsInternal(batchSize = 50): Promise<void> {
           status: "ACTIVE", // Only process imports from active companies
         },
       },
+      include: {
+        company: {
+          select: {
+            id: true,
+            csvUsername: true,
+            csvPassword: true,
+          },
+        },
+      },
       take: batchSize,
       orderBy: {
         createdAt: "asc", // Process oldest first
@@ -429,7 +426,10 @@ async function processQueuedImportsInternal(batchSize = 50): Promise<void> {
 
     // Process with concurrency limit to avoid overwhelming the database
     const concurrencyLimit = 5;
-    const results = [];
+    const results: Array<{
+      importRecord: ImportRecord;
+      result: { success: boolean; error?: string };
+    }> = [];
 
     for (let i = 0; i < batchPromises.length; i += concurrencyLimit) {
       const chunk = batchPromises.slice(i, i + concurrencyLimit);