Add geometry draft mode and pad silhouette descenders

pre-commit: 1 maintain.sh - not rerun full, ruff + 34 targeted tests passed; 2) /simplify - pad lives in silhouette crop, stable=False reuses probes; 3) docs sync - no README/cli refs to update; 4) CLAUDE.md - no change
EOF
)

tests/test_text_draft.py

@@ -139,3 +139,20 @@ class TestDraftTextLines:
         (line,) = draft.accepted
         assert line.language == "ch"
         assert line.script == "cjk"
+
+    def test_unstable_geometry_draft_accepts_a_single_high_score_read(self, tmp_path: Path):
+        path = self._poster(tmp_path)
+        jitter = _JitterEngine(["Hello", "Hallo", "Hullo"])
+        stable = _FakeEngine("Hello")
+        # Probes disagree across engines so language is en; jitter would fail
+        # the stable gate. Geometry mode uses the one en probe and accepts.
+        draft = draft_text_lines(
+            path,
+            min_score=0.75,
+            stable=False,
+            detector=_FakeDetector([(20, 20, 200, 60)]),
+            engines={"en": jitter, "ru": stable, "ch": stable},
+        )
+        (line,) = draft.accepted
+        assert line.text == "Hello"
+        assert line.min_score >= 0.75

tests/test_text_restoration.py

@@ -15,6 +15,7 @@ from remove_ai_watermarks._internal.text_restoration import (
     load_verified_text_manifest,
     restore_verified_text,
     source_pixel_sha256,
+    source_silhouette_mask,
 )
 
 
@@ -126,3 +127,14 @@ def test_restoration_uses_lama_and_qwen_vae_core(monkeypatch) -> None:
     assert calls
     assert np.all(restored[16, 20] == donor[16, 20])
     assert np.all(restored[0, 0] == candidate[0, 0])
+
+
+def test_silhouette_includes_descender_below_the_detector_box() -> None:
+    source = np.full((40, 50, 3), 240, dtype=np.uint8)
+    source[10:22, 18:24] = 20
+    source[22:27, 18:22] = 20  # tail of a y / Cyrillic u, under the box
+
+    mask = source_silhouette_mask(source, (10, 10, 40, 22))
+
+    assert mask[24, 20] == 255
+    assert mask[16, 20] == 255