Stop displaying the summary model name

Drop the "요약 모델" footer from rendered briefings and the model badge
from the dashboard (degraded briefings keep a "요약 없음" chip). The
model is still recorded in the DB/result JSON for diagnostics.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/test_render.py

@@ -115,7 +115,7 @@ def test_markdown_header_and_degraded_mode():
     assert "🧩 축소 모드(LLM 요약 없음)" in md
     assert "## 총평" not in md and "## 시장 개요" not in md
     assert "## 📊 주요 지수" in md  # tables still present
-    assert md.rstrip().endswith("요약 모델: 없음")
+    assert "요약 모델" not in md  # the model is an implementation detail, never displayed
 
 
 def test_markdown_with_report_sections_and_numbers_from_payload():
@@ -132,7 +132,7 @@ def test_markdown_with_report_sections_and_numbers_from_payload():
     # numeric table values come from the payload
     assert "| S&P 500 | 6,432.10 | +0.52% |" in md
     assert "| VIX | 15.20 | -5.00% |" in md
-    assert md.rstrip().endswith("요약 모델: MiniMax-M3")
+    assert "요약 모델" not in md
 
 
 def test_markdown_group_order_and_sections():
@@ -333,7 +333,6 @@ def test_telegram_full_briefing_roundtrip(limit: int):
         assert 0 < len(c) <= limit
         _assert_balanced(c)
     joined = "\n".join(chunks)
-    assert "요약 모델: MiniMax-M3" in joined
     assert "미 10년물" in joined and "+3.5bp" in joined