Spike: Facebook Page reached after the operator's Page click; scheduled post + photo created, read back byte-equal, deleted

Read phase passes (Page 1360018983863273, CREATE_CONTENT/MODERATE/ANALYZE, page token PAGE expires_at 0, three insights
metrics alive on v26.0). Write test: removal check accepts Meta's code-10 'Object does not exist' (fixed without a row,
4 tests); run 1 evidence kept. R-914 READY, R-915 narrowed to Live mode.

scripts/facebook/test_fb_probe.py

@@ -67,5 +67,19 @@ class Redact(unittest.TestCase):
         self.assertEqual(fb_probe.redact(fb_probe.TEST_TEXT, secrets=[]), fb_probe.TEST_TEXT)
 
 
+class GoneError(unittest.TestCase):
+    def test_measured_code_10_does_not_exist(self):
+        self.assertTrue(fb_probe.gone_error({"code": 10, "message": "(#10) Object does not exist, cannot be loaded due to missing permission"}))
+
+    def test_code_100(self):
+        self.assertTrue(fb_probe.gone_error({"code": 100, "message": "Unsupported get request"}))
+
+    def test_other_code_10_is_not_removal(self):
+        self.assertFalse(fb_probe.gone_error({"code": 10, "message": "(#10) Application does not have permission"}))
+
+    def test_success_body_is_not_removal(self):
+        self.assertFalse(fb_probe.gone_error(None))
+
+
 if __name__ == "__main__":
     unittest.main()