fix: unescape newlines and quotes in gemini response

sanitizer.py

@@ -109,6 +109,16 @@ def sanitize_response(text: str) -> str:
     # Fix user-reported "/N" artifact (treat as newline if standalone)
     cleaned = ARTIFACT_N_PATTERN.sub("\n", cleaned)
 
+    # === Unescape JSON/Raw Literals ===
+    # User wants "\n" to be actual newline and "\"" to be actual quote.
+    # We try to unescape, but carefully.
+    if "\\n" in cleaned or '\\"' in cleaned:
+        try:
+            # First try standard replace for safety and speed
+            cleaned = cleaned.replace("\\n", "\n").replace('\\"', '"')
+        except Exception:
+             pass
+
     # === Spam Removal ===
     for pattern in COMPILED_SPAM:
         cleaned = pattern.sub("", cleaned)

test_unescape.py

@@ -0,0 +1,19 @@
+from sanitizer import sanitize_response
+
+test_input = 'There are 3 \\"r\\"s in the word strawberry.\\n\\nHere is the breakdown:\\nstrawberry'
+expected_output = 'There are 3 "r"s in the word strawberry.\n\nHere is the breakdown:\nstrawberry'
+
+cleaned = sanitize_response(test_input)
+
+print("--- INPUT ---")
+print(test_input)
+print("\n--- CLEANED ---")
+print(cleaned)
+print("\n--- EXPECTED ---")
+print(expected_output)
+
+if cleaned == expected_output:
+    print("\n✅ SUCCESS: Text was correctly unescaped.")
+else:
+    print("\n❌ FAILURE: Output does not match expected.")
+    print(f"Got: {repr(cleaned)}")