Deprecate root PII scrubber

scrubber.py

@@ -1,16 +1,9 @@
-"""
-Legacy PII scrubber — preserved for reference.
-Active anonymization logic has moved to app/ai-service/services/pii_scrubber.py.
-"""
-import re
+"""Deprecated legacy PII scrubber reference.
 
-def scrub_pii(text: str) -> str:
-    """Remove emails, phone numbers, and IDs from text using regex.
-
-    This is a legacy module kept for documentation purposes.
-    """
-    text = re.sub(r'[\w\.-]+@[\w\.-]+', '[REDACTED_EMAIL]', text)
-    text = re.sub(r'\+?\d[\d\s\-]{7,}\d', '[REDACTED_PHONE]', text)
-    text = re.sub(r'\b\d{4,}\b', '[REDACTED_ID]', text)
-    return text
+The active anonymization implementation is
+``app/ai-service/services/pii_scrubber.py::PIIScrubberService``.
 
+This module intentionally does not expose ``scrub_pii`` so new code and tests
+use the canonical AI service implementation instead of the legacy regex-only
+helper.
+"""

tests/fixtures/expected_outputs.json

@@ -1,15 +1,15 @@
 [
   {
     "name": "email test",
-    "expected": "Contact me at [REDACTED_EMAIL]"
+    "expected": "Contact me at [EMAIL_ADDRESS]"
   },
   {
     "name": "phone test",
-    "expected": "Call me on [REDACTED_PHONE]"
+    "expected": "Call me on [PHONE_NUMBER]"
   },
   {
     "name": "id test",
-    "expected": "My ID is [REDACTED_ID]"
+    "expected": "My ID is [ID_NUMBER]"
   },
   {
     "name": "safe text",

tests/fixtures/pii_inputs.json

@@ -9,7 +9,7 @@
   },
   {
     "name": "id test",
-    "input": "My ID is 12345678"
+    "input": "My ID is AB12345678"
   },
   {
     "name": "safe text",

tests/test_pii_scrubber.py

@@ -1,6 +1,13 @@
 import json
 import difflib
-from scrubber import scrub_pii
+import sys
+from pathlib import Path
+
+ROOT_DIR = Path(__file__).resolve().parents[1]
+AI_SERVICE_DIR = ROOT_DIR / "app" / "ai-service"
+sys.path.insert(0, str(AI_SERVICE_DIR))
+
+from services.pii_scrubber import PIIScrubberService
 
 
 def load_json(path):
@@ -13,10 +20,11 @@ def load_json(path):
 
 
 def test_pii_scrubbing():
+    service = PIIScrubberService()
 
     for inp, exp in zip(inputs, expected):
 
-        result = scrub_pii(inp["input"])
+        result = service.anonymize(inp["input"])["anonymized_text"]
 
         if result != exp["expected"]: