fix(sdk): Auto-save company profile to SDK context and backend

Profile data was lost when navigating away because it was only saved
to SDK context on explicit button click (Next/Save). Scope data
persisted because it auto-synced on every change.

Added two debounced auto-save mechanisms:
- SDK context sync (500ms) — survives in-app navigation
- Backend save (2s) — survives page reload/session change

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

admin-compliance/app/sdk/company-profile/page.tsx

@@ -1,6 +1,6 @@
 'use client'
 
-import React, { useState, useEffect } from 'react'
+import React, { useState, useEffect, useRef } from 'react'
 import { useSDK } from '@/lib/sdk'
 import {
   CompanyProfile,
@@ -2469,6 +2469,39 @@ export default function CompanyProfilePage() {
     setFormData(prev => ({ ...prev, ...updates }))
   }
 
+  // ---------------------------------------------------------------------------
+  // Auto-save: sync formData to SDK context (debounced) so data survives navigation.
+  // This mirrors the pattern used by compliance-scope/page.tsx.
+  // ---------------------------------------------------------------------------
+  const autoSaveRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+  const initialLoadDone = useRef(false)
+
+  useEffect(() => {
+    // Skip the initial load — only auto-save after user has started editing
+    if (!initialLoadDone.current) {
+      // Mark initial load done after first formData update (from backend or SDK state)
+      if (formData.companyName !== undefined) {
+        initialLoadDone.current = true
+      }
+      return
+    }
+
+    // Debounce: sync to SDK context after 500ms of inactivity
+    if (autoSaveRef.current) clearTimeout(autoSaveRef.current)
+    autoSaveRef.current = setTimeout(() => {
+      // Only sync if there's meaningful data (not just defaults)
+      const hasData = formData.companyName || (formData.industry && formData.industry.length > 0)
+      if (hasData) {
+        setCompanyProfile({ ...formData, isComplete: false, completedAt: null } as CompanyProfile)
+      }
+    }, 500)
+
+    return () => {
+      if (autoSaveRef.current) clearTimeout(autoSaveRef.current)
+    }
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [formData])
+
   // Shared payload builder for draft saves and final save (DRY)
   const buildProfilePayload = (isComplete: boolean) => ({
     project_id: projectId || null,
@@ -2537,7 +2570,39 @@ export default function CompanyProfilePage() {
     } : {}),
   })
 
-  // Auto-save draft to backend (fire-and-forget, non-blocking)
+  // ---------------------------------------------------------------------------
+  // Auto-save draft to backend (debounced, 2s after last change)
+  // ---------------------------------------------------------------------------
+  const backendAutoSaveRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+
+  useEffect(() => {
+    if (!initialLoadDone.current) return
+
+    const hasData = formData.companyName || (formData.industry && formData.industry.length > 0)
+    if (!hasData) return
+
+    if (backendAutoSaveRef.current) clearTimeout(backendAutoSaveRef.current)
+    backendAutoSaveRef.current = setTimeout(async () => {
+      try {
+        await fetch(profileApiUrl(), {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify(buildProfilePayload(false)),
+        })
+        setDraftSaveStatus('saved')
+        if (draftSaveTimerRef.current) clearTimeout(draftSaveTimerRef.current)
+        draftSaveTimerRef.current = setTimeout(() => setDraftSaveStatus('idle'), 3000)
+      } catch {
+        // Silent fail for auto-save — user can still manually save via Next
+      }
+    }, 2000)
+
+    return () => {
+      if (backendAutoSaveRef.current) clearTimeout(backendAutoSaveRef.current)
+    }
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [formData])
+
   const [draftSaveStatus, setDraftSaveStatus] = useState<'idle' | 'saving' | 'saved' | 'error'>('idle')
   const draftSaveTimerRef = React.useRef<ReturnType<typeof setTimeout> | null>(null)