refactor: remove 473 lines of dead code across 5 SDK modules

- obligations: unused vendors state/fetch, unreachable filter==='ai' path
- tom: unused vendorControlsLoading state, unused bulkUpdateTOMs import
- loeschfristen: unused BASELINE_TEMPLATES imports, sdk hook, managingLegalHolds state
- vvt: unused apiGetCompleteness/apiGetLibrary, 7 unused VVTLib* interfaces
- vendor-compliance: 11 unused context methods, 6 unused selector hooks, ContractUploadData type

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

admin-compliance/app/sdk/loeschfristen/page.tsx

@@ -2,7 +2,6 @@
 
 import React, { useState, useEffect, useCallback, useMemo } from 'react'
 import { useRouter } from 'next/navigation'
-import { useSDK } from '@/lib/sdk'
 import { StepHeader, STEP_EXPLANATIONS } from '@/components/sdk/StepHeader'
 import {
   LoeschfristPolicy, LegalHold, StorageLocation,
@@ -15,7 +14,6 @@ import {
   formatRetentionDuration, isPolicyOverdue, getActiveLegalHolds,
   getEffectiveDeletionTrigger,
 } from '@/lib/sdk/loeschfristen-types'
-import { BASELINE_TEMPLATES, templateToPolicy, getTemplateById, getAllTemplateTags } from '@/lib/sdk/loeschfristen-baseline-catalog'
 import {
   PROFILING_STEPS, ProfilingAnswer, ProfilingStep,
   isStepComplete, getProfilingProgress, generatePoliciesFromProfile,
@@ -107,7 +105,6 @@ function TagInput({
 
 export default function LoeschfristenPage() {
   const router = useRouter()
-  const sdk = useSDK()
 
   // ---- Core state ----
   const [tab, setTab] = useState<Tab>('uebersicht')
@@ -127,9 +124,6 @@ export default function LoeschfristenPage() {
   // ---- Compliance state ----
   const [complianceResult, setComplianceResult] = useState<ComplianceCheckResult | null>(null)
 
-  // ---- Legal Hold management ----
-  const [managingLegalHolds, setManagingLegalHolds] = useState(false)
-
   // ---- Saving state ----
   const [saving, setSaving] = useState(false)
 

admin-compliance/app/sdk/obligations/page.tsx

@@ -588,17 +588,6 @@ export default function ObligationsPage() {
   const [profiling, setProfiling] = useState(false)
   const [applicableRegs, setApplicableRegs] = useState<ApplicableRegulation[]>([])
   const [activeTab, setActiveTab] = useState<Tab>('uebersicht')
-  const [vendors, setVendors] = useState<Array<{id: string, name: string, role: string}>>([])
-
-  useEffect(() => {
-    fetch('/api/sdk/v1/vendor-compliance/vendors?limit=500')
-      .then(r => r.ok ? r.json() : null)
-      .then(data => {
-        const items = data?.data?.items || []
-        setVendors(items.map((v: any) => ({ id: v.id, name: v.name, role: v.role })))
-      })
-      .catch(() => {})
-  }, [])
 
   // Compliance check result — auto-computed when obligations change
   const complianceResult = useMemo<ObligationComplianceCheckResult | null>(() => {
@@ -777,9 +766,6 @@ export default function ObligationsPage() {
   const stepInfo = STEP_EXPLANATIONS['obligations']
 
   const filteredObligations = obligations.filter(o => {
-    if (filter === 'ai') {
-      if (!o.source.toLowerCase().includes('ai')) return false
-    }
     if (regulationFilter !== 'all') {
       const src = o.source?.toLowerCase() || ''
       const key = regulationFilter.toLowerCase()

admin-compliance/app/sdk/tom/page.tsx

@@ -35,7 +35,7 @@ const TABS: TabDefinition[] = [
 export default function TOMPage() {
   const router = useRouter()
   const sdk = useSDK()
-  const { state, dispatch, bulkUpdateTOMs, runGapAnalysis } = useTOMGenerator()
+  const { state, dispatch, runGapAnalysis } = useTOMGenerator()
 
   // ---------------------------------------------------------------------------
   // Local state
@@ -53,7 +53,6 @@ export default function TOMPage() {
     status: string
     lastTestedAt?: string
   }>>([])
-  const [vendorControlsLoading, setVendorControlsLoading] = useState(false)
 
   // ---------------------------------------------------------------------------
   // Compliance check (auto-run when derivedTOMs change)
@@ -71,7 +70,6 @@ export default function TOMPage() {
 
   useEffect(() => {
     if (tab !== 'uebersicht') return
-    setVendorControlsLoading(true)
     Promise.all([
       fetch('/api/sdk/v1/vendor-compliance/control-instances?limit=500').then(r => r.ok ? r.json() : null),
       fetch('/api/sdk/v1/vendor-compliance/vendors?limit=500').then(r => r.ok ? r.json() : null),
@@ -95,7 +93,7 @@ export default function TOMPage() {
           lastTestedAt: ci.lastTestedAt || ci.last_tested_at,
         }))
       setVendorControls(tomControls)
-    }).catch(() => {}).finally(() => setVendorControlsLoading(false))
+    }).catch(() => {})
   }, [tab])
 
   // ---------------------------------------------------------------------------

admin-compliance/app/sdk/vvt/page.tsx

@@ -235,21 +235,6 @@ async function apiInstantiateTemplate(templateId: string): Promise<VVTActivity>
   return activityFromApi(await res.json())
 }
 
-async function apiGetCompleteness(activityId: string): Promise<{ score: number; missing: string[]; warnings: string[] }> {
-  const res = await fetch(`${VVT_API_BASE}/activities/${activityId}/completeness`)
-  if (!res.ok) return { score: 0, missing: [], warnings: [] }
-  return res.json()
-}
-
-interface LibraryItem { id: string; label_de: string; description_de?: string; [key: string]: any }
-
-async function apiGetLibrary(type: string): Promise<LibraryItem[]> {
-  const res = await fetch(`${VVT_API_BASE}/libraries/${type}`)
-  if (!res.ok) return []
-  const data = await res.json()
-  return Array.isArray(data) ? data : []
-}
-
 // =============================================================================
 // MAIN PAGE
 // =============================================================================