fix(chart): divisional tables show that chart's own rows, not D1 (T3, BUG-1076)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017eEAG8HD3mm8gsKXgk8uU8

tests/test_chart_page_vedic_tables_contract.py

@@ -0,0 +1,58 @@
+"""The chart page's dignity and varga-meaning tables must be the engine's.
+
+`frontend/src/lib/vedic-chart-tables.json` is read by the chart-page mapper so
+the divisional tables can show 入旺 / 自宫 / 落陷 without a second hand-written
+rule set. This test pins it to the constants `jyotish_engine._get_dignity_level`
+uses and to `divisional_charts_extended.VargaType`.
+"""
+
+from __future__ import annotations
+
+import json
+import sys
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / "scripts"))
+
+import divisional_charts_extended  # noqa: E402
+import jyotish_engine  # noqa: E402
+
+TABLES = json.loads((ROOT / "frontend/src/lib/vedic-chart-tables.json").read_text(encoding="utf-8"))
+PLANETS = ["Sun", "Moon", "Mars", "Mercury", "Jupiter", "Venus", "Saturn", "Rahu", "Ketu"]
+
+
+def _table_dignity(planet: str, sign: str) -> str | None:
+    """Same precedence as `vargaDignity` in frontend/src/lib/chart-view-varga.ts."""
+    if TABLES["exaltation"].get(planet) == sign:
+        return "EXALTED"
+    if TABLES["signLords"].get(sign) == planet or TABLES["nodeOwnSign"].get(planet) == sign:
+        return "OWN_SIGN"
+    if TABLES["debilitation"].get(planet) == sign:
+        return "DEBILITATED"
+    return None
+
+
+def test_tables_equal_engine_constants() -> None:
+    assert TABLES["signLords"] == jyotish_engine.SIGN_LORDS
+    assert TABLES["exaltation"] == jyotish_engine.EXALTATION
+    assert TABLES["debilitation"] == jyotish_engine.DEBILITATION
+
+
+def test_every_planet_sign_pair_matches_engine_dignity_level() -> None:
+    for planet in PLANETS:
+        for sign in jyotish_engine.SIGN_LORDS:
+            # No degree and no chart context: the varga table shows the sign
+            # dignity only (no moolatrikona band, no neecha bhanga, no friendship).
+            engine = jyotish_engine._get_dignity_level(planet, sign)
+            expected = engine if engine in {"EXALTED", "OWN_SIGN", "DEBILITATED"} else None
+            if engine == "NEECHA_BHANGA":
+                expected = "DEBILITATED"
+            assert _table_dignity(planet, sign) == expected, (planet, sign, engine)
+
+
+def test_varga_meanings_equal_engine_varga_types() -> None:
+    engine = {str(v.division): v.meaning for v in divisional_charts_extended.VargaType if v.division <= 60}
+    assert TABLES["vargaMeaning"] == engine
+    for division in ("40", "45", "60"):
+        assert division in TABLES["vargaMeaning"]