diff --git a/pitch-deck/app/api/admin/fp-patch/route.ts b/pitch-deck/app/api/admin/fp-patch/route.ts
index 46a681f..ff87109 100644
--- a/pitch-deck/app/api/admin/fp-patch/route.ts
+++ b/pitch-deck/app/api/admin/fp-patch/route.ts
@@ -1,39 +1,17 @@
-import { NextResponse } from 'next/server'
+import { NextRequest, NextResponse } from 'next/server'
+import { requireAdmin } from '@/lib/admin-auth'
 import pool from '@/lib/db'
 import { computeFinanzplan } from '@/lib/finanzplan/engine'
 
-export async function POST() {
-  const WD = 'c0000000-0000-0000-0000-000000000200'
-  const results: string[] = []
+/** Admin-only: recompute a Finanzplan scenario. */
+export async function POST(request: NextRequest) {
+  const guard = await requireAdmin(request)
+  if (guard.kind === 'response') return guard.response
 
-  // Re-add KFZ-Steuern and KFZ-Versicherung with values from m25 only
-  const steuern = Object.fromEntries(Array.from({length:36},(_,i)=>[`m${i+25}`,45]))
-  const versicherung = Object.fromEntries(Array.from({length:36},(_,i)=>[`m${i+25}`,300]))
+  const body = await request.json().catch(() => ({}))
+  const scenarioId = body.scenarioId || (await pool.query("SELECT id FROM fp_scenarios WHERE is_default = true LIMIT 1")).rows[0]?.id
+  if (!scenarioId) return NextResponse.json({ error: 'No scenario found' }, { status: 404 })
 
-  for (const [label, vals] of [['KFZ-Steuern', steuern], ['KFZ-Versicherung', versicherung]] as [string, Record<string,number>][]) {
-    const { rows } = await pool.query(`SELECT id FROM fp_betriebliche_aufwendungen WHERE scenario_id=$1 AND row_label=$2`, [WD, label])
-    if (rows.length === 0) {
-      await pool.query(`INSERT INTO fp_betriebliche_aufwendungen (scenario_id, category, row_label, row_index, is_editable, is_sum_row, values, sort_order) VALUES ($1, 'fahrzeug', $2, 25, true, false, $3, 25)`, [WD, label, JSON.stringify(vals)])
-      results.push(`ADDED ${label}`)
-    } else {
-      await pool.query(`UPDATE fp_betriebliche_aufwendungen SET values=$1 WHERE id=$2`, [JSON.stringify(vals), rows[0].id])
-      results.push(`UPDATED ${label}`)
-    }
-  }
-
-  // Also delete any leftover old formula rows
-  const { rowCount } = await pool.query(`DELETE FROM fp_betriebliche_aufwendungen WHERE scenario_id=$1 AND row_label IN ('KFZ-Steuern (F)', 'KFZ-Versicherung (F)', 'Fahrzeugkosten (F)')`, [WD])
-  if (rowCount && rowCount > 0) results.push(`DELETED ${rowCount} old formula rows`)
-
-  // Add Fahrzeugkosten header if missing
-  const { rows: hdr } = await pool.query(`SELECT id FROM fp_betriebliche_aufwendungen WHERE scenario_id=$1 AND category='fahrzeug' AND is_sum_row=true`, [WD])
-  if (hdr.length === 0) {
-    await pool.query(`INSERT INTO fp_betriebliche_aufwendungen (scenario_id, category, row_label, row_index, is_editable, is_sum_row, values, sort_order) VALUES ($1, 'fahrzeug', 'Fahrzeugkosten', 20, false, true, '{}', 20)`, [WD])
-    results.push('ADDED Fahrzeugkosten header')
-  }
-
-  const r = await computeFinanzplan(pool, WD)
-  results.push(`cash_m60=${r.liquiditaet?.endstand?.m60}`)
-
-  return NextResponse.json({ ok: true, results })
+  const result = await computeFinanzplan(pool, scenarioId)
+  return NextResponse.json({ success: true, scenarioId, cash_m60: result.liquiditaet?.endstand?.m60 })
 }
diff --git a/pitch-deck/middleware.ts b/pitch-deck/middleware.ts
index fc6dfe4..2cfd3ba 100644
--- a/pitch-deck/middleware.ts
+++ b/pitch-deck/middleware.ts
@@ -6,7 +6,6 @@ const PUBLIC_PATHS = [
   '/auth',                    // investor login pages
   '/api/auth',                // investor auth API
   '/api/health',
-  '/api/admin/fp-patch',
   '/api/admin-auth',          // admin login API
   '/pitch-admin/login',       // admin login page
   '/_next',