Fix: Rename app folder to match app ID

- Renamed analytics-hub/ → analyticshub/
- App ID in info.xml is 'analyticshub' (no hyphen)
- Nextcloud requires folder name to match app ID exactly
- Fixes 'Could not download app analyticshub' error during installation

Installation:
- Upload analyticshub/ folder to /var/www/nextcloud/apps/
- Folder name must match app ID in info.xml

analyticshub/lib/Controller/ReportController.php

@@ -0,0 +1,83 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\AnalyticsHub\Controller;
+
+use OCP\IRequest;
+use OCP\AppFramework\Http;
+
+use OCA\AnalyticsHub\Service\GoogleAnalyticsService;
+use OCA\AnalyticsHub\Service\LLMService;
+use OCA\AnalyticsHub\Service\DataProcessor;
+use OCA\AnalyticsHub\Model\ClientConfig;
+
+/**
+ * Report Controller - Internal report generation logic
+ */
+class ReportController {
+
+    private GoogleAnalyticsService $gaService;
+    private LLMService $llmService;
+    private DataProcessor $dataProcessor;
+
+    public function __construct(
+        GoogleAnalyticsService $gaService,
+        LLMService $llmService,
+        DataProcessor $dataProcessor
+    ) {
+        $this->gaService = $gaService;
+        $this->llmService = $llmService;
+        $this->dataProcessor = $dataProcessor;
+    }
+
+    /**
+     * Generate report for a specific client
+     * Called by cron job
+     */
+    public function generateForClient(ClientConfig $client): ?string {
+        \OCP\Util::writeLog("Generating report for: {$client->getName()}");
+
+        try {
+            // Fetch GA4 data (last 7 days)
+            $rawData = $this->gaService->fetchGA4Data($client, '7d');
+
+            // Process and validate
+            $processed = $this->dataProcessor->process($rawData, $client);
+
+            // Generate report via LLM
+            $markdown = $this->llmService->generate($processed, $client);
+
+            // Save to Nextcloud
+            $report = $this->gaService->saveReport($client, $markdown);
+
+            \OCP\Util::writeLog("Report generated: {$report->getFilePath()}");
+
+            return $markdown;
+
+        } catch (\Exception $e) {
+            \OCP\Util::writeLog("Report generation failed for {$client->getName()}: {$e->getMessage()}");
+            throw $e;
+        }
+    }
+
+    /**
+     * Generate reports for all active clients
+     * Called by cron job
+     */
+    public function generateForAllClients(): array {
+        $clients = $this->gaService->getActiveClients();
+        $results = [];
+
+        foreach ($clients as $client) {
+            try {
+                $this->generateForClient($client);
+                $results[$client->getSlug()] = 'success';
+            } catch (\Exception $e) {
+                $results[$client->getSlug()] = "error: {$e->getMessage()}";
+            }
+        }
+
+        return $results;
+    }
+}