feat(iace-fmea): KI-Vorschlag Uebernehmen/Ablehnen flow + AP unit tests

Closes the loose end from IACE Phase 5 handover: the LLM FM-suggest button
existed and the backend endpoint was wired, but accepted suggestions had
no path into the FMEA worksheet.

Hook (useFMEA.ts):
- acceptSuggestion(fm, componentId): builds an FMEARow from FM defaults,
  prepends to rows (sorted by RPZ), removes the FM from suggestions.
  No-ops + drops the suggestion when (component, fm.id) is already in rows.
- rejectSuggestion(fmId): drops the FM from suggestions list.

Page (fmea/page.tsx):
- Suggestion cards now have explicit Uebernehmen / Ablehnen buttons.
- Counter "X Vorschlaege uebernommen" tracks accept count for the run.
- RPZ in each suggestion is colour-coded (red >200, orange >100).
- Hinweis line explains S/O/D adjustability after acceptance.
- acceptedCount auto-resets when suggesting starts or panel closes.

Tests (useFMEA.test.ts):
- 8 calculateAP cases covering AIAG-VDA 2019 boundary points for severity
  10 / 9 / 7 / 5 / 3, validating the H/M/L action priority matrix.

LOC: fmea/page.tsx hits 320 (soft target 300, well under 500 hard cap).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

admin-compliance/app/sdk/iace/[projectId]/fmea/_hooks/useFMEA.test.ts

@@ -0,0 +1,36 @@
+import { describe, expect, it } from 'vitest'
+import { calculateAP } from './useFMEA'
+
+describe('calculateAP — AIAG-VDA 2019 Handbook Action Priority', () => {
+  it('returns H for severity 10 with mid occurrence', () => {
+    expect(calculateAP(10, 5, 5)).toBe('H')
+  })
+
+  it('returns H for severity 9 with low detection', () => {
+    expect(calculateAP(9, 4, 7)).toBe('H')
+  })
+
+  it('returns M for severity 9 with low occurrence and good detection', () => {
+    expect(calculateAP(9, 2, 5)).toBe('M')
+  })
+
+  it('returns L for severity 9 with very low occurrence and detection', () => {
+    expect(calculateAP(9, 1, 4)).toBe('L')
+  })
+
+  it('returns H for severity 7 with high occurrence', () => {
+    expect(calculateAP(7, 5, 1)).toBe('H')
+  })
+
+  it('returns M for severity 7 with mid occurrence', () => {
+    expect(calculateAP(7, 3, 5)).toBe('M')
+  })
+
+  it('returns L for low-severity well-controlled mode', () => {
+    expect(calculateAP(3, 1, 1)).toBe('L')
+  })
+
+  it('returns L for severity 5 with very low occurrence and detection', () => {
+    expect(calculateAP(5, 1, 1)).toBe('L')
+  })
+})

admin-compliance/app/sdk/iace/[projectId]/fmea/_hooks/useFMEA.ts

@@ -156,5 +156,52 @@ export function useFMEA(projectId: string) {
   // Get unique components for the suggest button
   const components = [...new Map(rows.map((r) => [r.component.id, r.component])).values()]
 
-  return { rows, loading, stats, components, suggestFMs, suggesting, suggestions, suggestSource, setSuggestions }
+  /**
+   * Accept a suggested FM: build an FMEA row from the FM defaults, prepend it
+   * to the table state, and remove the FM from the suggestion list.
+   * Returns false if the (component, fm.id) combo already exists in rows.
+   */
+  function acceptSuggestion(fm: FailureMode, componentId: string): boolean {
+    const comp = components.find((c) => c.id === componentId)
+    if (!comp) return false
+    const dup = rows.find((r) => r.component.id === componentId && r.failureMode.id === fm.id)
+    if (dup) {
+      // Still drop the suggestion so the UI does not keep offering it.
+      setSuggestions((prev) => prev.filter((s) => s.id !== fm.id))
+      return false
+    }
+    const s = fm.default_severity || 5
+    const o = fm.default_occurrence || 5
+    const d = fm.default_detection || 5
+    const newRow: FMEARow = {
+      component: comp,
+      failureMode: fm,
+      severity: s,
+      occurrence: o,
+      detection: d,
+      rpz: s * o * d,
+      ap: calculateAP(s, o, d),
+    }
+    setRows((prev) => [newRow, ...prev].sort((a, b) => b.rpz - a.rpz))
+    setSuggestions((prev) => prev.filter((sg) => sg.id !== fm.id))
+    return true
+  }
+
+  function rejectSuggestion(fmId: string) {
+    setSuggestions((prev) => prev.filter((sg) => sg.id !== fmId))
+  }
+
+  return {
+    rows,
+    loading,
+    stats,
+    components,
+    suggestFMs,
+    suggesting,
+    suggestions,
+    suggestSource,
+    setSuggestions,
+    acceptSuggestion,
+    rejectSuggestion,
+  }
 }