feat: TextReference component — original text, position, correction in findings

Shows for each finding:
- Original text block from DSE (or "missing" indicator)
- Position: section heading, number, parent section, paragraph index
- Correction: insert/append/replace with copy button
Falls back to plain correction view if no text reference available.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

admin-compliance/app/sdk/agent/_components/ScanResult.tsx

@@ -1,6 +1,7 @@
 'use client'
 
 import React, { useState } from 'react'
+import { TextReference } from './TextReference'
 
 interface ServiceInfo {
   name: string
@@ -14,11 +15,27 @@ interface ServiceInfo {
   status: string
 }
 
+interface TextRef {
+  found: boolean
+  source_url: string
+  document_type: string
+  section_heading: string
+  section_number: string
+  parent_section: string
+  paragraph_index: number
+  original_text: string
+  issue: string
+  correction_type: string
+  correction_text: string
+  insert_after: string
+}
+
 interface ScanFinding {
   code: string
   severity: string
   text: string
   correction: string
+  text_reference: TextRef | null
 }
 
 interface ScanData {
@@ -157,7 +174,12 @@ export function ScanResult({ data }: { data: ScanData }) {
                     </span>
                     <p className="text-sm text-gray-800 flex-1">{f.text}</p>
                   </div>
-                  {f.correction && (
+                  {/* Text Reference (original text + position + correction) */}
+                  {f.text_reference && (
+                    <TextReference ref={f.text_reference} correction={f.correction} />
+                  )}
+                  {/* Fallback: correction without text reference */}
+                  {!f.text_reference && f.correction && (
                     <div className="mt-2">
                       <button
                         onClick={() => setExpandedCorrection(isExpanded ? null : f.code)}