Rollback - PDF Import funzt so semi

backend/src/config/database.ts

@@ -376,6 +376,119 @@ export function initializeDatabase() {
     )
   `)
 
+  // Organizational Structure Tables
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS organizational_units (
+      id TEXT PRIMARY KEY,
+      code TEXT NOT NULL UNIQUE,
+      name TEXT NOT NULL,
+      type TEXT NOT NULL CHECK(type IN ('direktion', 'abteilung', 'dezernat', 'sachgebiet', 'teildezernat', 'fuehrungsstelle', 'stabsstelle', 'sondereinheit')),
+      level INTEGER NOT NULL,
+      parent_id TEXT,
+      position_x INTEGER,
+      position_y INTEGER,
+      color TEXT,
+      order_index INTEGER DEFAULT 0,
+      description TEXT,
+      has_fuehrungsstelle INTEGER DEFAULT 0,
+      fuehrungsstelle_name TEXT,
+      is_active INTEGER DEFAULT 1,
+      created_at TEXT NOT NULL,
+      updated_at TEXT NOT NULL,
+      FOREIGN KEY (parent_id) REFERENCES organizational_units(id)
+    );
+    
+    CREATE INDEX IF NOT EXISTS idx_org_units_parent ON organizational_units(parent_id);
+    CREATE INDEX IF NOT EXISTS idx_org_units_type ON organizational_units(type);
+    CREATE INDEX IF NOT EXISTS idx_org_units_level ON organizational_units(level);
+  `)
+
+  // Employee Unit Assignments
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS employee_unit_assignments (
+      id TEXT PRIMARY KEY,
+      employee_id TEXT NOT NULL,
+      unit_id TEXT NOT NULL,
+      role TEXT NOT NULL CHECK(role IN ('leiter', 'stellvertreter', 'mitarbeiter', 'beauftragter')),
+      start_date TEXT NOT NULL,
+      end_date TEXT,
+      is_primary INTEGER DEFAULT 1,
+      created_at TEXT NOT NULL,
+      updated_at TEXT NOT NULL,
+      FOREIGN KEY (employee_id) REFERENCES employees(id) ON DELETE CASCADE,
+      FOREIGN KEY (unit_id) REFERENCES organizational_units(id) ON DELETE CASCADE,
+      UNIQUE(employee_id, unit_id, role)
+    );
+    
+    CREATE INDEX IF NOT EXISTS idx_emp_units_employee ON employee_unit_assignments(employee_id);
+    CREATE INDEX IF NOT EXISTS idx_emp_units_unit ON employee_unit_assignments(unit_id);
+  `)
+
+  // Special Positions (Personalrat, Beauftragte, etc.)
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS special_positions (
+      id TEXT PRIMARY KEY,
+      employee_id TEXT NOT NULL,
+      position_type TEXT NOT NULL CHECK(position_type IN ('personalrat', 'schwerbehindertenvertretung', 'datenschutzbeauftragter', 'gleichstellungsbeauftragter', 'inklusionsbeauftragter', 'informationssicherheitsbeauftragter', 'geheimschutzbeauftragter', 'extremismusbeauftragter')),
+      unit_id TEXT,
+      start_date TEXT NOT NULL,
+      end_date TEXT,
+      is_active INTEGER DEFAULT 1,
+      created_at TEXT NOT NULL,
+      updated_at TEXT NOT NULL,
+      FOREIGN KEY (employee_id) REFERENCES employees(id) ON DELETE CASCADE,
+      FOREIGN KEY (unit_id) REFERENCES organizational_units(id)
+    );
+    
+    CREATE INDEX IF NOT EXISTS idx_special_pos_employee ON special_positions(employee_id);
+    CREATE INDEX IF NOT EXISTS idx_special_pos_type ON special_positions(position_type);
+  `)
+
+  // Deputy Assignments (Vertretungen)
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS deputy_assignments (
+      id TEXT PRIMARY KEY,
+      principal_id TEXT NOT NULL,
+      deputy_id TEXT NOT NULL,
+      unit_id TEXT,
+      valid_from TEXT NOT NULL,
+      valid_until TEXT NOT NULL,
+      reason TEXT,
+      can_delegate INTEGER DEFAULT 1,
+      created_by TEXT NOT NULL,
+      created_at TEXT NOT NULL,
+      updated_at TEXT NOT NULL,
+      FOREIGN KEY (principal_id) REFERENCES employees(id),
+      FOREIGN KEY (deputy_id) REFERENCES employees(id),
+      FOREIGN KEY (unit_id) REFERENCES organizational_units(id),
+      FOREIGN KEY (created_by) REFERENCES users(id)
+    );
+    
+    CREATE INDEX IF NOT EXISTS idx_deputy_principal ON deputy_assignments(principal_id);
+    CREATE INDEX IF NOT EXISTS idx_deputy_deputy ON deputy_assignments(deputy_id);
+    CREATE INDEX IF NOT EXISTS idx_deputy_dates ON deputy_assignments(valid_from, valid_until);
+  `)
+
+  // Deputy Delegations (Vertretungs-Weitergaben)
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS deputy_delegations (
+      id TEXT PRIMARY KEY,
+      original_assignment_id TEXT NOT NULL,
+      from_deputy_id TEXT NOT NULL,
+      to_deputy_id TEXT NOT NULL,
+      reason TEXT,
+      delegated_at TEXT NOT NULL,
+      created_at TEXT NOT NULL,
+      FOREIGN KEY (original_assignment_id) REFERENCES deputy_assignments(id),
+      FOREIGN KEY (from_deputy_id) REFERENCES employees(id),
+      FOREIGN KEY (to_deputy_id) REFERENCES employees(id)
+    );
+    
+    CREATE INDEX IF NOT EXISTS idx_delegation_assignment ON deputy_delegations(original_assignment_id);
+    CREATE INDEX IF NOT EXISTS idx_delegation_from ON deputy_delegations(from_deputy_id);
+    CREATE INDEX IF NOT EXISTS idx_delegation_to ON deputy_delegations(to_deputy_id);
+  `)
+
   // Audit Log für Änderungsverfolgung
   db.exec(`
     CREATE TABLE IF NOT EXISTS audit_log (