feat: consumption log top1 + elapsed since recording; RTSP play once

- Add top1_name/top1_conf to TSV and show top1–3 in pending markdown
- Add 相对开录 column and pass since_recording_start from surgery start
- Track surgery_started_wall and format_elapsed_mmss_since in session registry
- Remove ffmpeg stream_loop from synthetic/demo fake RTSP (play once)
- Fix fake_rtsp_from_file poll loop indentation; update README
- Extend consumption TSV tests; add face test PNGs under tests/faces

Made-with: Cursor

tests/test_consumption_tsv_log.py

@@ -11,6 +11,7 @@ from app.services.consumption_tsv_log import (
     append_consumption_log_summary,
     append_consumption_tsv_line,
     build_consumption_markdown,
+    build_pending_consumption_markdown,
     build_tsv_line,
     init_consumption_log_file,
     replace_pending_line_with_voice_resolution,
@@ -48,7 +49,7 @@ def test_build_tsv_line_matches_sample_shape(monkeypatch: pytest.MonkeyPatch) ->
         wall_end_epoch=w0 + 45.0,
     )
     parts = line.rstrip("\n").split("\t")
-    assert len(parts) == 9
+    assert len(parts) == 11
     assert parts[0] == "2237844"
     assert parts[1] == "一次性医用灭菌棉签"
     assert parts[2] == "1"
@@ -59,10 +60,12 @@ def test_build_tsv_line_matches_sample_shape(monkeypatch: pytest.MonkeyPatch) ->
         + _RANGE_SEP
         + "2024-01-01T00:00:45.000+00:00"
     )
-    assert parts[5] == "cls2"
-    assert parts[6] == "0.0003"
-    assert parts[7] == "cls3"
-    assert parts[8] == "0.0002"
+    assert parts[5] == "一次性医用灭菌棉签"
+    assert parts[6] == "0.9997"
+    assert parts[7] == "cls2"
+    assert parts[8] == "0.0003"
+    assert parts[9] == "cls3"
+    assert parts[10] == "0.0002"
 
 
 def test_resolve_consumption_item_id_uses_normalized_catalog_key() -> None:
@@ -78,6 +81,8 @@ def test_header_columns() -> None:
         "qty",
         "doctor_id",
         "timestamp",
+        "top1_name",
+        "top1_conf",
         "top2_name",
         "top2_conf",
         "top3_name",
@@ -101,7 +106,8 @@ def test_replace_pending_line_with_voice_resolution_rewrites_one_row(
     pending = (
         "pending:abc-123\t待确认\t1\tvision\t"
         "cam01@2024-01-01T00:00:00.000+00:00"
-        f"{_RANGE_SEP}2024-01-01T00:00:45.000+00:00\tx\t0.1\ty\t0.2\n"
+        f"{_RANGE_SEP}2024-01-01T00:00:45.000+00:00\t"
+        "一次性针头\t0.5000\tx\t0.1\ty\t0.2\n"
     )
     append_consumption_tsv_line("SURG01", pending)
     replace_pending_line_with_voice_resolution(
@@ -189,6 +195,7 @@ def test_build_consumption_markdown_top123_columns(monkeypatch: pytest.MonkeyPat
         wall_end_epoch=w0 + 45.0,
     )
     assert "| item_id |" in md and "| item_name |" in md and "| qty |" in md
+    assert "| 相对开录 |" in md
     assert "| top2 |" in md and "| top3 |" in md
     assert "2237844" in md
     assert "一次性医用灭菌棉签" in md
@@ -199,3 +206,33 @@ def test_build_consumption_markdown_top123_columns(monkeypatch: pytest.MonkeyPat
     assert "2024-01-01 00:00:00.000" in md and "2024-01-01 00:00:45.000" in md
     assert "cam01" in md and " · " in md and _RANGE_SEP in md
     assert "cam01@2024-01" not in md
+    assert "| DOCTOR_PLACEHOLDER | — |" in md
+
+
+def test_build_pending_consumption_markdown_top123(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.setattr(bp, "CONSUMPTION_LOG_TIMEZONE", "UTC")
+    snap = ClsTop3(
+        t1_name="输液器A",
+        t1_conf=0.88,
+        t2_name="候选二",
+        t2_conf=0.07,
+        t3_name="候选三",
+        t3_conf=0.02,
+        t1_pid="",
+        t2_pid="",
+        t3_pid="",
+    )
+    w0 = 1704067200.0
+    md = build_pending_consumption_markdown(
+        confirmation_id="cid-1",
+        model_snap=snap,
+        doctor_id="vision",
+        camera_id="or-cam-01",
+        wall_start_epoch=w0,
+        wall_end_epoch=w0 + 15.0,
+        since_recording_start="0分15秒",
+    )
+    assert "| top1 | top2 | top3 |" in md
+    assert "输液器A (0.8800)" in md
+    assert "候选二 (0.0700)" in md
+    assert "候选三 (0.0200)" in md