feat(sprint9): Phase 5 — Berichtszentrale, sidebar reorg, dashboard enhancement

- Sidebar: reorganized into 4 collapsible groups (Betrieb, Kommunikation, Verwaltung, Compliance)
- Berichtszentrale: new /reports-center page with report cards grouped by category (Finance, KCanG, DSGVO, Admin), format selector, date range pickers, Behörden-Export dialog with password protection
- Dashboard: added Outstanding Payments and Monthly Income KPI cards, Upcoming Events widget, Latest Announcements widget, conditional alert cards
- Pricing: fixed mobile overflow at 375px viewport on comparison table
- Frontend service: new compliance-reports.ts with React Query hooks for report generation, authority export, and download
- i18n: added reportsCenter.* and dashboard widget keys to de.json and en.json

cannamanage-frontend/messages/en.json

@@ -66,7 +66,15 @@
     "today": "Today",
     "trend": "+{value}% vs last month",
     "quotaUsed": "{value}% used",
-    "distributionCount": "{count} distributions, {grams}g"
+    "distributionCount": "{count} distributions, {grams}g",
+    "outstandingPayments": "Outstanding Payments",
+    "monthlyIncome": "Monthly Income",
+    "thisMonth": "This month",
+    "strainsAvailable": "strains available",
+    "upcomingEvents": "Upcoming Events",
+    "latestAnnouncements": "Latest Announcements",
+    "rsvps": "RSVPs",
+    "viewAll": "View all"
   },
   "members": {
     "title": "Member Management",
@@ -1004,5 +1012,100 @@
     "positions": "Positions",
     "active": "Active",
     "inactive": "Inactive"
+  },
+  "reportsCenter": {
+    "title": "Reports Center",
+    "subtitle": "Generate and manage all regulatory and internal reports in one place.",
+    "generate": "Generate",
+    "cancel": "Cancel",
+    "authorityExport": {
+      "title": "Authority Export",
+      "description": "Bundled export of all authority-relevant documents for a calendar year.",
+      "button": "Start Authority Export",
+      "dialogTitle": "Create Authority Export",
+      "dialogDescription": "Creates a password-protected archive with all compliance-relevant reports for the selected year.",
+      "warning": "This export contains sensitive data and will be logged in the audit trail. Only proceed with a legitimate request.",
+      "year": "Report Year",
+      "password": "Archive Password",
+      "passwordPlaceholder": "Enter secure password",
+      "confirm": "Create Export"
+    },
+    "categories": {
+      "finance": "Finance",
+      "kcang": "KCanG Compliance",
+      "dsgvo": "GDPR",
+      "admin": "Administration"
+    },
+    "reports": {
+      "EUER": {
+        "name": "Income Statement",
+        "description": "Simplified income statement for the selected period"
+      },
+      "KASSENBUCH_EXPORT": {
+        "name": "Cash Book Export",
+        "description": "Complete cash book as PDF or CSV"
+      },
+      "BEITRAGSBESCHEINIGUNG": {
+        "name": "Membership Fee Certificate",
+        "description": "Certificate of paid membership fees"
+      },
+      "JAHRESBERICHT_BEHOERDE": {
+        "name": "Annual Authority Report",
+        "description": "Legally required annual report to the responsible authority"
+      },
+      "AUSGABEPROTOKOLL": {
+        "name": "Distribution Log",
+        "description": "Log of all distributions in the period with amounts and recipients"
+      },
+      "VERNICHTUNGSPROTOKOLL": {
+        "name": "Destruction Protocol",
+        "description": "Documentation of proper cannabis destruction"
+      },
+      "TRANSPORTZERTIFIKAT": {
+        "name": "Transport Certificate",
+        "description": "Certificate for approved cannabis transport"
+      },
+      "BESTANDSFUEHRUNG": {
+        "name": "Inventory Report",
+        "description": "Current stock with all inflows and outflows"
+      },
+      "VERARBEITUNGSVERZEICHNIS": {
+        "name": "Processing Register",
+        "description": "Register of all processing activities per Art. 30 GDPR"
+      },
+      "TOM": {
+        "name": "TOM",
+        "description": "Technical and organizational measures per Art. 32 GDPR"
+      },
+      "DSFA": {
+        "name": "DPIA",
+        "description": "Data Protection Impact Assessment per Art. 35 GDPR"
+      },
+      "LOESCHKONZEPT": {
+        "name": "Deletion Policy",
+        "description": "Policy for timely data deletion"
+      },
+      "DATENPANNEN_MELDUNG": {
+        "name": "Data Breach Report",
+        "description": "Template for reporting a data protection violation"
+      },
+      "MITGLIEDERLISTE_REGISTER": {
+        "name": "Member Registry List",
+        "description": "Official member list for the association register"
+      },
+      "VORSTANDSAENDERUNG": {
+        "name": "Board Change Notification",
+        "description": "Notification of board change to the association register"
+      }
+    },
+    "history": {
+      "title": "Generated Reports",
+      "empty": "No reports generated yet. Select a report above to get started.",
+      "report": "Report",
+      "format": "Format",
+      "date": "Date",
+      "user": "Created by",
+      "size": "Size"
+    }
   }
 }