diff --git a/.scratch/ppac-candidate/issues/01-fixed-tab.md b/.scratch/ppac-candidate/issues/01-fixed-tab.md
new file mode 100644
index 0000000..9a3398c
--- /dev/null
+++ b/.scratch/ppac-candidate/issues/01-fixed-tab.md
@@ -0,0 +1,24 @@
+# Alpha 管理候选PPAC
+Type: task
+Status: ready-for-agent
+
+用户要求新增固定候选清单,并将对应检查结果显示为黄色“候选PPAC”Tag。
+
+## 实现范围
+
+- 仅有一项 Alpha FAIL 且名称为 PURE_POWER_POOL_THEME 时,检查结果派生为 PPAC_CANDIDATE;REGULAR_SUBMISSION 沿用既有排除口径,WARNING/PENDING 不计失败。
+- 固定“候选PPAC”Tab 通过 ppac_candidate=true 在数据库分页前筛选未提交候选;叠加筛选、分页、导出、保存/恢复视图及 AI 页面上下文保持一致。
+- 列表和详情显示黄色候选状态,保留原始 FAIL 检查证据与本地研究记录。候选身份不表示当前可正式提交。
+- 迁移 0022 复用已有 check_type 索引,仅重分类匹配的历史缓存。同步和主动检查沿用 snapshot_columns 自动刷新分类。
+
+## 验证
+
+分类边界、组合筛选/分页/导出、同步与主动检查后的状态迁移、隔离历史迁移、后端静态检查、前端构建和浏览器固定 Tab/黄色 Tag/保存恢复/窄屏验证。
+
+## Comments
+
+已完成本地实现与验证:95 项后端回归通过,包含分类边界、真实业务执行器对模拟 /check 的状态刷新、筛选/分页/导出/保存视图、503 条历史缓存的升级/降级/再升级及迁移 schema check;Ruff、TypeScript 与生产构建通过。
+
+原有 Alpha 管理、提交受阻和本地相关性筛选 3 项浏览器回归通过。另在隔离临时库使用 56 条合成 PPAC Alpha 验证:固定 Tab、列表/详情黄色 Tag、原始 FAIL 保留、跨页勾选、搜索后回第一页及清空选择、保存/恢复视图、空结果和重置保持候选范围。1920px 桌面与 720px 窄屏完成截图检查,行高为 40px,窄屏分页底部 887px 位于 900px 视口内,页面未横向溢出,表体可独立横向滚动。
+
+截图位于忽略目录 output/playwright/ppac-candidate-{desktop,detail,narrow}.png。构建保留已有 lottie eval 和大包提示;浏览器仅有登录前 auth/me 的 401 与 favicon 404。未部署、未迁移实际业务数据库、未请求真实平台。
diff --git a/backend/app/alphas.py b/backend/app/alphas.py
index b330f95..62e5f54 100644
--- a/backend/app/alphas.py
+++ b/backend/app/alphas.py
@@ -31,16 +31,20 @@ def snapshot_columns(settings, metrics, checks, *, checked=False):
Sync snapshots with no failures are PRE_CHECK; a completed explicit /check
with no failures is PASS. WARNING/PENDING do not count as failures, matching
the legacy workflow. Empty, malformed or unknown results remain PENDING.
- No submission eligibility or activity eligibility is inferred here.
+ A sole PURE_POWER_POOL_THEME failure is a PPAC candidate, not confirmation
+ of current submission or activity eligibility. Raw failures stay available.
"""
settings = settings if isinstance(settings, dict) else {}
metrics = metrics if isinstance(metrics, dict) else {}
blocked = submission_limits(checks)["status"] == "blocked"
checks, _ = split_checks(checks)
valid = [check for check in checks if isinstance(check, dict)]
- failures = len(failed_checks(checks))
+ failed_names = failed_checks(checks)
+ failures = len(failed_names)
by_name = {check["name"]: check for check in valid if isinstance(check.get("name"), str)}
- if failures:
+ if failed_names == ["PURE_POWER_POOL_THEME"]:
+ check_type = "PPAC_CANDIDATE"
+ elif failures:
check_type = "FAIL_1" if failures == 1 else "FAIL_2"
elif not checks or len(valid) != len(checks) or any(check_result(check) not in ("PASS", "WARNING", "PENDING") for check in valid):
check_type = "PENDING"
@@ -75,7 +79,7 @@ def check_summary(checks, *, check_type):
"check_type": check_type,
"failed_checks": failed_checks(checks),
"submission_limits": submission_limits(checks),
- "meaning": "PRE_CHECK 为同步无失败项;PASS 为主动检查完成且无失败项。PENDING/WARNING 不算失败,不代表全部检查项 PASS 或当前可提交",
+ "meaning": "PRE_CHECK 为同步无失败项;PASS 为主动检查完成且无失败项;PPAC_CANDIDATE 为唯一失败项是 PURE_POWER_POOL_THEME 的候选。PENDING/WARNING 不算失败,不代表全部检查项 PASS 或当前可提交",
}
@@ -199,6 +203,11 @@ def list_statement(filters):
query = query.where(Alpha.submission_blocked == filters.submission_blocked)
if filters.submission_blocked:
query = query.where(submission_condition("UNSUBMITTED"))
+ if filters.ppac_candidate is not None:
+ candidate = Alpha.check_type == "PPAC_CANDIDATE"
+ query = query.where(candidate if filters.ppac_candidate else ~candidate)
+ if filters.ppac_candidate:
+ query = query.where(submission_condition("UNSUBMITTED"))
if (filters.local_correlation_status is not None or filters.local_correlation_min is not None
or filters.local_correlation_max is not None):
# One cache row per Alpha keeps totals/export stable; stale overrides the displayed status.
diff --git a/backend/app/schemas.py b/backend/app/schemas.py
index bf39e18..b867725 100644
--- a/backend/app/schemas.py
+++ b/backend/app/schemas.py
@@ -9,7 +9,7 @@ from pydantic import BaseModel, ConfigDict, Field, field_validator, model_valida
ResearchState = Literal["inbox", "candidate", "optimizing", "archived"]
Submission = Literal["UNSUBMITTED", "SUBMITTED"]
-CheckType = Literal["PENDING", "PRE_CHECK", "PASS", "FAIL_1", "FAIL_2"]
+CheckType = Literal["PENDING", "PRE_CHECK", "PASS", "PPAC_CANDIDATE", "FAIL_1", "FAIL_2"]
SortField = Literal[
"id",
"name",
@@ -74,6 +74,7 @@ class AlphaFilters(Contract):
local_correlation_min: float | None = Field(default=None, ge=-1, le=1)
local_correlation_max: float | None = Field(default=None, ge=-1, le=1)
submission_blocked: bool | None = None
+ ppac_candidate: bool | None = None
submission: Submission | None = None
source: str | None = Field(default=None, max_length=100)
source_reference: str | None = Field(default=None, max_length=200)
diff --git a/backend/migrations/versions/0022_ppac_candidate.py b/backend/migrations/versions/0022_ppac_candidate.py
new file mode 100644
index 0000000..f3f1f94
--- /dev/null
+++ b/backend/migrations/versions/0022_ppac_candidate.py
@@ -0,0 +1,41 @@
+"""Classify snapshots whose sole Alpha failure is the unopened PPAC theme."""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "0022"
+down_revision = "0021"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ # Reuse the indexed check_type column; preserve all raw evidence and check stages.
+ table = sa.table("alphas", sa.column("id", sa.String()), sa.column("checks", sa.JSON()),
+ sa.column("check_type", sa.String(20)))
+ connection = op.get_bind()
+ last_id = None
+ while True:
+ query = sa.select(table.c.id, table.c.checks).order_by(table.c.id).limit(500)
+ if last_id is not None:
+ query = query.where(table.c.id > last_id)
+ rows = connection.execute(query).mappings().all()
+ if not rows:
+ break
+ candidates = []
+ for row in rows:
+ # Freeze the current interpretation instead of importing application code.
+ checks = row["checks"] if isinstance(row["checks"], list) else []
+ failures = [check for check in checks if isinstance(check, dict)
+ and check.get("name") != "REGULAR_SUBMISSION"
+ and isinstance(check.get("result"), str) and check["result"].upper() == "FAIL"]
+ if len(failures) == 1 and failures[0].get("name") == "PURE_POWER_POOL_THEME":
+ candidates.append(row["id"])
+ if candidates:
+ connection.execute(table.update().where(table.c.id.in_(candidates)).values(check_type="PPAC_CANDIDATE"))
+ last_id = rows[-1]["id"]
+
+
+def downgrade():
+ table = sa.table("alphas", sa.column("check_type", sa.String(20)))
+ op.execute(table.update().where(table.c.check_type == "PPAC_CANDIDATE").values(check_type="FAIL_1"))
diff --git a/backend/tests/test_ppac_candidate.py b/backend/tests/test_ppac_candidate.py
new file mode 100644
index 0000000..57c9a35
--- /dev/null
+++ b/backend/tests/test_ppac_candidate.py
@@ -0,0 +1,108 @@
+"""PPAC candidates retain their theme failure and wait for platform eligibility."""
+
+import copy
+import csv
+import io
+
+import pytest
+
+from app.alphas import check_summary, snapshot_columns, upsert_alpha
+from tests import test_submission
+from tests.conftest import alpha
+
+THEME = {"name": "PURE_POWER_POOL_THEME", "result": "FAIL"}
+LIMIT = {"name": "REGULAR_SUBMISSION", "result": "FAIL"}
+OTHER = {"name": "LOW_SHARPE", "result": "FAIL"}
+
+
+@pytest.mark.parametrize("checked", [False, True])
+@pytest.mark.parametrize("checks,expected", [
+ ([THEME], "PPAC_CANDIDATE"),
+ ([{**THEME, "result": "fail"}], "PPAC_CANDIDATE"),
+ ([THEME, LIMIT, {"name": "MATCHES_THEMES", "result": "WARNING"},
+ {"name": "PROD_CORRELATION", "result": "PENDING"}], "PPAC_CANDIDATE"),
+ ([THEME, OTHER], "FAIL_2"),
+ ([THEME, THEME], "FAIL_2"),
+ ([THEME, {"result": "FAIL"}], "FAIL_2"),
+ ([OTHER], "FAIL_1"),
+ ([{**THEME, "result": "PASS"}, OTHER], "FAIL_1"),
+ ([{**THEME, "result": False}], "PENDING"),
+ ([{**THEME, "value": False}], "PPAC_CANDIDATE"),
+ ([], "PENDING"),
+ ([{}], "PENDING"),
+])
+def test_only_a_single_explicit_theme_failure_is_a_candidate(checks, expected, checked):
+ original = copy.deepcopy(checks)
+ columns = snapshot_columns({}, {}, checks, checked=checked)
+ assert columns["check_type"] == expected
+ assert checks == original
+ if expected == "PPAC_CANDIDATE":
+ assert check_summary(checks, check_type=expected)["failed_checks"] == ["PURE_POWER_POOL_THEME"]
+
+
+async def test_ppac_scope_filters_before_pagination_and_export(app, logged_in):
+ async with app.state.sessions.begin() as db:
+ for name, checks, status, region, hidden in [
+ ("candidate1", [THEME], "UNSUBMITTED", "USA", False),
+ ("candidate2", [THEME, LIMIT], "UNSUBMITTED", "USA", True),
+ ("other_region", [THEME], "UNSUBMITTED", "CHN", False),
+ ("submitted", [THEME], "ACTIVE", "USA", False),
+ ("missing_status", [THEME], None, "USA", False),
+ ("two_failures", [THEME, OTHER], "UNSUBMITTED", "USA", False),
+ ("other_failure", [OTHER], "UNSUBMITTED", "USA", False),
+ ("passed", [{**THEME, "result": "PASS"}], "UNSUBMITTED", "USA", False),
+ ("missing", [], "UNSUBMITTED", "USA", False),
+ ]:
+ await upsert_alpha(db, alpha(name, status=status, hidden=hidden, settings={"region": region},
+ **{"is": {"checks": checks}}))
+ query = "ppac_candidate=true®ion=USA&sort=id&direction=asc&limit=1&offset=1"
+ response = await logged_in.get(f"/api/v1/alphas?{query}")
+ assert response.status_code == 200, response.text
+ result = response.json()
+ assert result["total"] == 2
+ assert [row["id"] for row in result["items"]] == ["candidate2"]
+ assert result["items"][0]["check_type"] == "PPAC_CANDIDATE"
+ assert result["items"][0]["failed_checks"] == ["PURE_POWER_POOL_THEME"]
+ export = await logged_in.get(f"/api/v1/alphas/export?{query}")
+ rows = list(csv.DictReader(io.StringIO(export.text.lstrip("\ufeff"))))
+ assert [row["id"] for row in rows] == ["candidate1", "candidate2"]
+ assert {row["check_type"] for row in rows} == {"PPAC_CANDIDATE"}
+ assert (await logged_in.get("/api/v1/alphas?ppac_candidate=true&submission=SUBMITTED")).json()["total"] == 0
+ assert (await logged_in.get("/api/v1/alphas?ppac_candidate=true&check_type=FAIL_1")).json()["total"] == 0
+ assert (await logged_in.get("/api/v1/alphas?ppac_candidate=true&submission_blocked=true")).json()["total"] == 1
+ assert (await logged_in.get("/api/v1/alphas?ppac_candidate=true&q=candidate1")).json()["total"] == 1
+ assert (await logged_in.get("/api/v1/alphas?check_type=PPAC_CANDIDATE&submission=UNSUBMITTED")).json()["total"] == 3
+ assert (await logged_in.get("/api/v1/alphas?ppac_candidate=false")).json()["total"] == 4
+
+ saved = await logged_in.post("/api/v1/research/assets", json={
+ "kind": "view", "content": {"name": "候选PPAC", "filters": {
+ "submission": "UNSUBMITTED", "ppac_candidate": True, "region": "USA",
+ }, "columns": ["name", "check_type"]},
+ })
+ assert saved.status_code in (200, 201), saved.text
+ assert saved.json()["content"]["filters"]["ppac_candidate"] is True
+
+
+async def test_check_and_sync_refresh_candidate_status_without_losing_evidence(app, logged_in, monkeypatch):
+ await test_submission.setup(app, alpha(**{"is": {"checks": [OTHER]}}))
+ for checks, expected in [([THEME, LIMIT], "PPAC_CANDIDATE"), ([{**THEME, "result": "PASS"}], "PASS")]:
+ monkeypatch.setattr(test_submission, "CHECKS", checks)
+ response = await test_submission.enqueue(logged_in)
+ assert response.status_code == 202, response.text
+ await app.state.runner.execute(response.json()["id"])
+ state = (await logged_in.get("/api/v1/alphas/alpha1/submission")).json()
+ assert state["job"]["status"] == "completed"
+ assert state["check_summary"]["check_type"] == expected
+ detail = (await logged_in.get("/api/v1/alphas/alpha1")).json()
+ assert detail["checks"] == checks
+ assert detail["check_type"] == expected
+ assert detail["research"]["note"] == "preserve local research"
+ assert (await logged_in.get("/api/v1/alphas?ppac_candidate=true")).json()["total"] == (expected == "PPAC_CANDIDATE")
+ for checks, expected in [([THEME], "PPAC_CANDIDATE"), ([THEME, OTHER], "FAIL_2")]:
+ async with app.state.sessions.begin() as db:
+ await upsert_alpha(db, alpha(**{"is": {"checks": checks}}))
+ detail = (await logged_in.get("/api/v1/alphas/alpha1")).json()
+ assert detail["check_type"] == expected
+ assert detail["checks"] == checks
+ assert detail["research"]["note"] == "preserve local research"
+ assert (await logged_in.get("/api/v1/alphas?ppac_candidate=true")).json()["total"] == (expected == "PPAC_CANDIDATE")
diff --git a/backend/tests/test_ppac_candidate_migration.py b/backend/tests/test_ppac_candidate_migration.py
new file mode 100644
index 0000000..0da2790
--- /dev/null
+++ b/backend/tests/test_ppac_candidate_migration.py
@@ -0,0 +1,55 @@
+"""Historical PPAC classification changes only matching cached check types."""
+
+from datetime import datetime, timezone
+from pathlib import Path
+
+import sqlalchemy as sa
+from alembic import command
+from alembic.config import Config
+from cryptography.fernet import Fernet
+
+
+def test_ppac_backfill_preserves_evidence_across_batches_and_downgrade(tmp_path, monkeypatch):
+ database = tmp_path / "ppac.db"
+ monkeypatch.setenv("DATABASE_URL", f"sqlite+aiosqlite:///{database}")
+ monkeypatch.setenv("ADMIN_PASSWORD", "migration-test-only")
+ monkeypatch.setenv("ENCRYPTION_KEY", Fernet.generate_key().decode())
+ monkeypatch.setenv("WQ_EMAIL", "")
+ monkeypatch.setenv("WQ_PASSWORD", "")
+ root = Path(__file__).resolve().parents[1]
+ config = Config(str(root / "alembic.ini"))
+ config.set_main_option("script_location", str(root / "migrations"))
+ command.upgrade(config, "0021")
+ engine = sa.create_engine(f"sqlite:///{database}")
+ alphas = sa.Table("alphas", sa.MetaData(), autoload_with=engine)
+ theme = {"name": "PURE_POWER_POOL_THEME", "result": "FAIL"}
+ other = {"name": "LOW_SHARPE", "result": "FAIL"}
+ patterns = [
+ ([theme], "FAIL_1", "PPAC_CANDIDATE"),
+ ([{**theme, "result": "fail"}, {"name": "REGULAR_SUBMISSION", "result": "FAIL"}], "FAIL_1", "PPAC_CANDIDATE"),
+ ([theme, other], "FAIL_2", "FAIL_2"),
+ ([theme, theme], "FAIL_2", "FAIL_2"),
+ ([other], "FAIL_1", "FAIL_1"),
+ ([{**theme, "result": "PASS"}], "PASS", "PASS"),
+ ([{**theme, "result": "WARNING"}], "PRE_CHECK", "PRE_CHECK"),
+ ([{}], "PENDING", "PENDING"),
+ (None, "PENDING", "PENDING"),
+ ]
+ with engine.begin() as db:
+ db.execute(alphas.insert(), [
+ {"id": f"ppac{i:04}", "status": "UNSUBMITTED", "hidden": False, "settings": {}, "os_metrics": {},
+ "is_metrics": {"checks": patterns[i % len(patterns)][0]}, "checks": patterns[i % len(patterns)][0],
+ "check_type": patterns[i % len(patterns)][1], "synced_at": datetime(2026, 9, 13, tzinfo=timezone.utc),
+ "raw": {"is": {"checks": patterns[i % len(patterns)][0]}}}
+ for i in range(503)
+ ])
+ original = db.execute(sa.select(alphas).order_by(alphas.c.id)).mappings().all()
+ for target, position in [("0022", 2), ("0021", 1), ("0022", 2)]:
+ (command.upgrade if target == "0022" else command.downgrade)(config, target)
+ with engine.connect() as db:
+ rows = db.execute(sa.select(alphas).order_by(alphas.c.id)).mappings().all()
+ assert len(rows) == 503
+ for i, row in enumerate(rows):
+ assert dict(row) == {**original[i], "check_type": patterns[i % len(patterns)][position]}
+ command.check(config)
+ engine.dispose()
diff --git a/frontend/src/components/AlphaDetail.tsx b/frontend/src/components/AlphaDetail.tsx
index c7775c3..5c974ca 100644
--- a/frontend/src/components/AlphaDetail.tsx
+++ b/frontend/src/components/AlphaDetail.tsx
@@ -230,6 +230,11 @@ export function AlphaDetail({
+ 唯一失败项为 PURE_POWER_POOL_THEME,等待平台开放 PPAC + 主题后可重新检查提交资格。 +
+ )} {detail.alpha_type === "SUPER" && (