分析算子收尾：复算剔除系统字段改用同一个 DERIVED_PARAMS；去掉没用的导入和小函数；测试按仓库的写法从 tests.analysis_samples 导入样例

backend/app/analysis/__init__.py

@@ -111,6 +111,7 @@ def recompute(result: AnalysisResult, load: Callable[[str], InputSnapshot | None
     """复算：load 按 sha256 取回输入快照，load_result 按 sha256 取回 parent 那份结论。用结论里记下的 params（含运行当天、
     目录事实）、settings、probes，不现查、不读目录。取不回输入时抛 CallError（code input_missing）；方法升版后调用不再成立
     时同样抛 CallError（照 run 的说法）。和封存的那份用 contract.same 比。"""
+    from app.analysis.common import DERIVED_PARAMS
     from app.analysis.facts import Facts
     from app.analysis.inputs import _CELL, Inputs
     from app.analysis.probe import Book
@@ -149,7 +150,7 @@ def recompute(result: AnalysisResult, load: Callable[[str], InputSnapshot | None
     today = date.fromisoformat(params["today"]) if isinstance(params.get("today"), str) else None
     env = _env(op, mode, settings, Inputs(resolve, dialect), Facts(recorded=params.get("catalog") or {}),
                Book(result.get("probes") or []), today, parents, result.get("hypothesis"))
-    raw = {k: v for k, v in params.items() if k not in ("catalog", "today", "depth")}
+    raw = {k: v for k, v in params.items() if k not in DERIVED_PARAMS}
     return _compute(op, mode, raw, env)
 
 

backend/app/analysis/differ.py

@@ -21,7 +21,6 @@ direction 是 A 相对 B。
 """
 from __future__ import annotations
 
-import math
 from collections.abc import Mapping, Sequence
 from dataclasses import dataclass, field
 from fractions import Fraction

backend/app/analysis/series.py

@@ -111,10 +111,6 @@ def _completeness(env: Env, series: Series, item: pd.Period) -> tuple[str, str |
     return cmp.span_coverage(span, env.today, env.book)  # type: ignore[arg-type]
 
 
-def _shown_period(item: pd.Period) -> Any:
-    return item.raw
-
-
 # --------------------------------------------------------------------------
 # 波动基线
 # --------------------------------------------------------------------------

backend/tests/test_analysis_comparable.py

@@ -3,8 +3,8 @@
 probes，不现查）。"""
 from __future__ import annotations
 
-from analysis_samples import analyze, fixed_prober, snap
 from app.analysis import comparable_reasons
+from tests.analysis_samples import analyze, fixed_prober, snap
 
 WINDOW = "SELECT SUM(amount) AS gmv FROM orders WHERE order_date >= '{a}' AND order_date < '{b}'"
 RANGE = {("orders", "order_date"): ("2025-01-01", "2026-10-20")}

backend/tests/test_analysis_decompose.py

@@ -9,8 +9,8 @@ from fractions import Fraction
 
 import pytest
 
-from analysis_samples import analyze, call_error, fixed_prober, notes, snap
 from app.analysis.decompose import lmdi, ratio_effects
+from tests.analysis_samples import analyze, call_error, fixed_prober, notes, snap
 
 SQL = "SELECT region, week, SUM(amount) AS gmv FROM orders GROUP BY region, week"
 TYPES = {"region": "text", "week": "text", "gmv": "number"}

backend/tests/test_analysis_differ.py

@@ -7,8 +7,8 @@ from fractions import Fraction
 
 import pytest
 
-from analysis_samples import analyze, call_error, snap
 from app.analysis import stats
+from tests.analysis_samples import analyze, call_error, snap
 
 RATE_SQL = "SELECT region, SUM(refund_flag) AS refunds, COUNT(*) AS orders FROM orders GROUP BY region"
 

backend/tests/test_analysis_probe.py

@@ -9,7 +9,6 @@ from datetime import date, datetime, timedelta, timezone
 
 import pytest
 
-from analysis_samples import CATALOGS, recomputed, snap
 from app import analysis
 from app.analysis.contract import effective_settings, same
 from app.analysis.probe import Book, make_prober
@@ -17,6 +16,7 @@ from app.data import introspect
 from app.data.engine import engines
 from app.db.base import SessionLocal
 from app.db.models import DataSource
+from tests.analysis_samples import CATALOGS, recomputed, snap
 
 CLOCK = "2026-10-21T09:30:00"
 #: SQLite 的 date('now') 按 UTC 算：表里的数据造到 UTC 的昨天

backend/tests/test_analysis_run.py

@@ -7,10 +7,10 @@ from datetime import date, timedelta
 
 import pytest
 
-from analysis_samples import CATALOGS, analyze, call_error, fixed_prober, recomputed, snap
 from app import analysis
 from app.analysis import contract as c
 from app.analysis.contract import CallError, effective_settings, same
+from tests.analysis_samples import CATALOGS, analyze, call_error, fixed_prober, recomputed, snap
 
 WEEKLY_SQL = "SELECT region, week, SUM(amount) AS gmv FROM orders GROUP BY region, week"
 WEEKLY = snap("Q2", WEEKLY_SQL, ["region", "week", "gmv"],

backend/tests/test_analysis_series.py

@@ -7,8 +7,8 @@ from fractions import Fraction
 
 import pytest
 
-from analysis_samples import analyze, call_error, fixed_prober, snap
 from app.analysis.series import MAD_SCALE, run_length
+from tests.analysis_samples import analyze, call_error, fixed_prober, snap
 
 SQL = "SELECT DATE(order_date, 'weekday 0', '-6 days') AS week, COUNT(*) AS orders FROM orders GROUP BY 1"
 #: 每周一的日期：最后一周是 2026-10-12（到 10-18，运行当天 10-21 之前已经过完）