feat(governance): 顯示異地 escrow 準備度

apps/api/src/api/v1/agents.py

@@ -56,6 +56,9 @@ from src.services.backup_notification_policy import (
 from src.services.backup_restore_drill_approval_package_template import (
     load_latest_backup_restore_drill_approval_package_template,
 )
+from src.services.offsite_escrow_readiness_status import (
+    load_latest_offsite_escrow_readiness_status,
+)
 from src.services.package_supply_chain_inventory import (
     load_latest_package_supply_chain_inventory,
 )
@@ -583,6 +586,34 @@ async def get_backup_restore_drill_approval_package_template() -> dict[str, Any]
         ) from exc
 
 
+@router.get(
+    "/offsite-escrow-readiness-status",
+    response_model=dict[str, Any],
+    summary="取得異地 / Escrow 準備度狀態",
+    description=(
+        "讀取最新已提交的異地備份、credential escrow 與 K8s resource offsite readiness 狀態；"
+        "此端點只回傳 read-only status，不執行 backup、restore、offsite sync、"
+        "不寫 credential marker、不讀 credential、不輸出 secret 明文、不改排程、不寫 workflow、"
+        "不送 Telegram 測試通知、不做破壞性 prune、不改生產路由。"
+    ),
+)
+async def get_offsite_escrow_readiness_status() -> dict[str, Any]:
+    """Return the latest read-only offsite / escrow readiness status."""
+    try:
+        return await asyncio.to_thread(load_latest_offsite_escrow_readiness_status)
+    except FileNotFoundError as exc:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=str(exc),
+        ) from exc
+    except (json.JSONDecodeError, ValueError) as exc:
+        logger.error("offsite_escrow_readiness_status_invalid", error=str(exc))
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="異地 / Escrow 準備度狀態快照無效",
+        ) from exc
+
+
 @router.get(
     "/package-supply-chain-inventory",
     response_model=dict[str, Any],

apps/api/src/services/offsite_escrow_readiness_status.py

@@ -0,0 +1,160 @@
+"""
+Offsite / escrow readiness status snapshot.
+
+Loads the latest committed, read-only offsite / escrow readiness status. The
+status view never runs backups, restores, offsite sync, credential marker
+writes, credential reads, schedule changes, workflow writes, Telegram test
+notifications, destructive prune, or production routing changes.
+"""
+
+from __future__ import annotations
+
+import json
+from pathlib import Path
+from typing import Any
+
+from src.services.snapshot_paths import default_evaluations_dir
+
+_DEFAULT_EVALUATIONS_DIR = default_evaluations_dir(Path(__file__))
+_SNAPSHOT_PATTERN = "offsite_escrow_readiness_status_*.json"
+_SCHEMA_VERSION = "offsite_escrow_readiness_status_v1"
+
+
+def load_latest_offsite_escrow_readiness_status(
+    evaluations_dir: Path | None = None,
+) -> dict[str, Any]:
+    """Load the newest committed offsite / escrow readiness status snapshot."""
+    directory = evaluations_dir or _DEFAULT_EVALUATIONS_DIR
+    candidates = sorted(directory.glob(_SNAPSHOT_PATTERN))
+    if not candidates:
+        raise FileNotFoundError(f"no offsite / escrow readiness status snapshots found in {directory}")
+
+    latest = candidates[-1]
+    with latest.open(encoding="utf-8") as handle:
+        payload = json.load(handle)
+
+    if not isinstance(payload, dict):
+        raise ValueError(f"{latest}: expected JSON object")
+    _require_schema(payload, _SCHEMA_VERSION, str(latest))
+    _require_read_only_boundaries(payload, str(latest))
+    _require_operation_boundaries(payload, str(latest))
+    _require_rollup_consistency(payload, str(latest))
+    _require_redacted_cards(payload, str(latest))
+    return payload
+
+
+def _require_schema(payload: dict[str, Any], expected: str, label: str) -> None:
+    actual = payload.get("schema_version")
+    if actual != expected:
+        raise ValueError(f"{label}: expected schema_version={expected}, got {actual!r}")
+
+
+def _require_read_only_boundaries(payload: dict[str, Any], label: str) -> None:
+    program_status = payload.get("program_status") or {}
+    if program_status.get("read_only_mode") is not True:
+        raise ValueError(f"{label}: program_status.read_only_mode must be true")
+
+    boundaries = payload.get("approval_boundaries") or {}
+    blocked_flags = {
+        "sdk_installation_allowed",
+        "paid_api_call_allowed",
+        "shadow_or_canary_allowed",
+        "production_routing_allowed",
+        "destructive_operation_allowed",
+        "restore_execution_allowed",
+        "offsite_sync_execution_allowed",
+        "credential_marker_write_allowed",
+    }
+    allowed = sorted(flag for flag in blocked_flags if boundaries.get(flag) is not False)
+    if allowed:
+        raise ValueError(f"{label}: approval boundaries must remain false: {allowed}")
+
+
+def _require_operation_boundaries(payload: dict[str, Any], label: str) -> None:
+    boundaries = payload.get("operation_boundaries") or {}
+    if boundaries.get("read_only_status_allowed") is not True:
+        raise ValueError(f"{label}: read_only_status_allowed must be true")
+
+    blocked_flags = {
+        "backup_execution_allowed",
+        "restore_execution_allowed",
+        "offsite_sync_execution_allowed",
+        "credential_marker_write_allowed",
+        "credential_read_allowed",
+        "secret_plaintext_allowed",
+        "schedule_change_allowed",
+        "workflow_write_allowed",
+        "telegram_test_notification_allowed",
+        "destructive_prune_allowed",
+        "production_routing_allowed",
+    }
+    allowed = sorted(flag for flag in blocked_flags if boundaries.get(flag) is not False)
+    if allowed:
+        raise ValueError(f"{label}: operation boundaries must remain false: {allowed}")
+
+
+def _require_rollup_consistency(payload: dict[str, Any], label: str) -> None:
+    cards = payload.get("readiness_cards") or []
+    rollups = payload.get("rollups") or {}
+    if rollups.get("total_cards") != len(cards):
+        raise ValueError(f"{label}: rollups.total_cards must match readiness_cards")
+
+    verified_offsite = {
+        card.get("card_id")
+        for card in cards
+        if card.get("kind") == "offsite_mirror" and card.get("readiness") == "verified"
+    }
+    if set(rollups.get("verified_offsite_card_ids") or []) != verified_offsite:
+        raise ValueError(f"{label}: rollups.verified_offsite_card_ids must match verified offsite cards")
+
+    blocked_escrow = {
+        card.get("card_id")
+        for card in cards
+        if card.get("kind") == "credential_escrow" and card.get("readiness") == "blocked"
+    }
+    if set(rollups.get("blocked_escrow_card_ids") or []) != blocked_escrow:
+        raise ValueError(f"{label}: rollups.blocked_escrow_card_ids must match blocked escrow cards")
+
+    action_required = {
+        card.get("card_id")
+        for card in cards
+        if card.get("readiness") == "action_required"
+    }
+    if set(rollups.get("action_required_card_ids") or []) != action_required:
+        raise ValueError(f"{label}: rollups.action_required_card_ids must match action_required cards")
+
+    execution_blocked = {
+        card.get("card_id")
+        for card in cards
+        if any(operation.endswith("_execution") or operation == "credential_marker_write" for operation in card.get("blocked_operations", []))
+    }
+    if set(rollups.get("execution_blocked_card_ids") or []) != execution_blocked:
+        raise ValueError(f"{label}: rollups.execution_blocked_card_ids must match cards with blocked execution operations")
+
+
+def _require_redacted_cards(payload: dict[str, Any], label: str) -> None:
+    cards = payload.get("readiness_cards") or []
+    forbidden_exposure = {
+        "plaintext",
+        "secret_plaintext",
+        "credential_plaintext",
+        "token_visible",
+    }
+    exposed = sorted(
+        card.get("card_id")
+        for card in cards
+        if card.get("credential_exposure_status") in forbidden_exposure
+    )
+    if exposed:
+        raise ValueError(f"{label}: credential exposure must stay redacted: {exposed}")
+
+    contract = payload.get("operator_contract") or {}
+    must_not_interpret_as = set(contract.get("must_not_interpret_as") or [])
+    required_denials = {
+        "復原批准",
+        "異地同步批准",
+        "credential marker 寫入批准",
+        "完整 DR 綠燈",
+    }
+    if not required_denials.issubset(must_not_interpret_as):
+        raise ValueError(f"{label}: operator_contract.must_not_interpret_as is missing required denials")

apps/api/tests/test_ai_agent_automation_backlog_snapshot_api.py

@@ -18,12 +18,12 @@ def test_ai_agent_automation_backlog_snapshot_endpoint_returns_committed_snapsho
     assert data["schema_version"] == "ai_agent_automation_backlog_v1"
     assert data["program_status"]["overall_completion_percent"] == 100
     assert data["program_status"]["read_only_mode"] is True
-    assert data["program_status"]["current_task_id"] == "P1-105"
-    assert data["program_status"]["next_task_id"] == "P1-106"
-    assert data["rollups"]["total_items"] == len(data["backlog_items"]) == 20
-    assert data["rollups"]["by_priority"]["P1"] == 18
-    assert data["rollups"]["by_status"]["done"] == 13
-    assert data["rollups"]["by_gate_status"]["read_only_allowed"] == 17
+    assert data["program_status"]["current_task_id"] == "P1-106"
+    assert data["program_status"]["next_task_id"] == "P1-305"
+    assert data["rollups"]["total_items"] == len(data["backlog_items"]) == 21
+    assert data["rollups"]["by_priority"]["P1"] == 19
+    assert data["rollups"]["by_status"]["done"] == 14
+    assert data["rollups"]["by_gate_status"]["read_only_allowed"] == 18
     assert data["approval_boundaries"]["sdk_installation_allowed"] is False
     assert data["approval_boundaries"]["paid_api_call_allowed"] is False
     assert data["approval_boundaries"]["production_routing_allowed"] is False
@@ -33,4 +33,5 @@ def test_ai_agent_automation_backlog_snapshot_endpoint_returns_committed_snapsho
     assert any(item["item_id"] == "AUTO-P1-103" for item in data["backlog_items"])
     assert any(item["item_id"] == "AUTO-P1-104" for item in data["backlog_items"])
     assert any(item["item_id"] == "AUTO-P1-105" for item in data["backlog_items"])
+    assert any(item["item_id"] == "AUTO-P1-106" for item in data["backlog_items"])
     assert any(item["item_id"] == "AUTO-P3-001" for item in data["backlog_items"])

apps/api/tests/test_ai_agent_automation_inventory_snapshot_api.py

@@ -18,8 +18,8 @@ def test_ai_agent_automation_inventory_snapshot_endpoint_returns_committed_snaps
     assert data["schema_version"] == "ai_agent_automation_inventory_snapshot_v1"
     assert data["program_status"]["overall_completion_percent"] == 100
     assert data["program_status"]["read_only_mode"] is True
-    assert data["program_status"]["current_task_id"] == "P1-105"
-    assert data["program_status"]["next_task_id"] == "P1-106"
+    assert data["program_status"]["current_task_id"] == "P1-106"
+    assert data["program_status"]["next_task_id"] == "P1-305"
     assert data["approval_boundaries"]["sdk_installation_allowed"] is False
     assert data["approval_boundaries"]["paid_api_call_allowed"] is False
     assert data["approval_boundaries"]["production_routing_allowed"] is False
@@ -30,6 +30,7 @@ def test_ai_agent_automation_inventory_snapshot_endpoint_returns_committed_snaps
     assert any(task["task_id"] == "P1-103" for task in data["tasks"])
     assert any(task["task_id"] == "P1-104" for task in data["tasks"])
     assert any(task["task_id"] == "P1-105" for task in data["tasks"])
+    assert any(task["task_id"] == "P1-106" for task in data["tasks"])
     assert any(evidence["evidence_id"] == "dependency_risk_policy_api" for evidence in data["evidence"])
     assert any(evidence["evidence_id"] == "dependency_drift_check_plan_api" for evidence in data["evidence"])
     assert any(
@@ -42,3 +43,4 @@ def test_ai_agent_automation_inventory_snapshot_endpoint_returns_committed_snaps
         evidence["evidence_id"] == "backup_restore_drill_approval_package_template_api"
         for evidence in data["evidence"]
     )
+    assert any(evidence["evidence_id"] == "offsite_escrow_readiness_status_api" for evidence in data["evidence"])

apps/api/tests/test_offsite_escrow_readiness_status.py

@@ -0,0 +1,213 @@
+from __future__ import annotations
+
+import json
+
+import pytest
+
+from src.services.offsite_escrow_readiness_status import (
+    load_latest_offsite_escrow_readiness_status,
+)
+
+
+def test_load_latest_offsite_escrow_readiness_status_reads_newest_file(tmp_path):
+    older = _snapshot(generated_at="2026-06-04T00:00:00+08:00", completion=40)
+    newer = _snapshot(generated_at="2026-06-05T00:00:00+08:00", completion=100)
+    (tmp_path / "offsite_escrow_readiness_status_2026-06-04.json").write_text(
+        json.dumps(older),
+        encoding="utf-8",
+    )
+    (tmp_path / "offsite_escrow_readiness_status_2026-06-05.json").write_text(
+        json.dumps(newer),
+        encoding="utf-8",
+    )
+
+    loaded = load_latest_offsite_escrow_readiness_status(tmp_path)
+
+    assert loaded["generated_at"] == "2026-06-05T00:00:00+08:00"
+    assert loaded["program_status"]["overall_completion_percent"] == 100
+    assert loaded["rollups"]["total_cards"] == 3
+
+
+def test_offsite_escrow_readiness_status_requires_read_only_mode(tmp_path):
+    snapshot = _snapshot()
+    snapshot["program_status"]["read_only_mode"] = False
+    (tmp_path / "offsite_escrow_readiness_status_2026-06-05.json").write_text(
+        json.dumps(snapshot),
+        encoding="utf-8",
+    )
+
+    with pytest.raises(ValueError, match="read_only_mode"):
+        load_latest_offsite_escrow_readiness_status(tmp_path)
+
+
+def test_offsite_escrow_readiness_status_requires_blocked_approval_boundaries(tmp_path):
+    snapshot = _snapshot()
+    snapshot["approval_boundaries"]["credential_marker_write_allowed"] = True
+    (tmp_path / "offsite_escrow_readiness_status_2026-06-05.json").write_text(
+        json.dumps(snapshot),
+        encoding="utf-8",
+    )
+
+    with pytest.raises(ValueError, match="approval boundaries"):
+        load_latest_offsite_escrow_readiness_status(tmp_path)
+
+
+def test_offsite_escrow_readiness_status_requires_blocked_operation_boundaries(tmp_path):
+    snapshot = _snapshot()
+    snapshot["operation_boundaries"]["offsite_sync_execution_allowed"] = True
+    (tmp_path / "offsite_escrow_readiness_status_2026-06-05.json").write_text(
+        json.dumps(snapshot),
+        encoding="utf-8",
+    )
+
+    with pytest.raises(ValueError, match="operation boundaries"):
+        load_latest_offsite_escrow_readiness_status(tmp_path)
+
+
+def test_offsite_escrow_readiness_status_requires_total_consistency(tmp_path):
+    snapshot = _snapshot()
+    snapshot["rollups"]["total_cards"] = 999
+    (tmp_path / "offsite_escrow_readiness_status_2026-06-05.json").write_text(
+        json.dumps(snapshot),
+        encoding="utf-8",
+    )
+
+    with pytest.raises(ValueError, match="total_cards"):
+        load_latest_offsite_escrow_readiness_status(tmp_path)
+
+
+def test_offsite_escrow_readiness_status_requires_escrow_blocked_consistency(tmp_path):
+    snapshot = _snapshot()
+    snapshot["rollups"]["blocked_escrow_card_ids"] = []
+    (tmp_path / "offsite_escrow_readiness_status_2026-06-05.json").write_text(
+        json.dumps(snapshot),
+        encoding="utf-8",
+    )
+
+    with pytest.raises(ValueError, match="blocked_escrow_card_ids"):
+        load_latest_offsite_escrow_readiness_status(tmp_path)
+
+
+def test_offsite_escrow_readiness_status_rejects_credential_plaintext(tmp_path):
+    snapshot = _snapshot()
+    snapshot["readiness_cards"][1]["credential_exposure_status"] = "credential_plaintext"
+    (tmp_path / "offsite_escrow_readiness_status_2026-06-05.json").write_text(
+        json.dumps(snapshot),
+        encoding="utf-8",
+    )
+
+    with pytest.raises(ValueError, match="credential exposure"):
+        load_latest_offsite_escrow_readiness_status(tmp_path)
+
+
+def test_offsite_escrow_readiness_status_requires_operator_denials(tmp_path):
+    snapshot = _snapshot()
+    snapshot["operator_contract"]["must_not_interpret_as"] = ["復原批准"]
+    (tmp_path / "offsite_escrow_readiness_status_2026-06-05.json").write_text(
+        json.dumps(snapshot),
+        encoding="utf-8",
+    )
+
+    with pytest.raises(ValueError, match="must_not_interpret_as"):
+        load_latest_offsite_escrow_readiness_status(tmp_path)
+
+
+def test_offsite_escrow_readiness_status_fails_when_missing(tmp_path):
+    with pytest.raises(FileNotFoundError):
+        load_latest_offsite_escrow_readiness_status(tmp_path)
+
+
+def _snapshot(
+    *,
+    generated_at: str = "2026-06-05T00:00:00+08:00",
+    completion: int = 100,
+) -> dict:
+    return {
+        "schema_version": "offsite_escrow_readiness_status_v1",
+        "generated_at": generated_at,
+        "source_refs": ["docs/evaluations/backup_dr_readiness_matrix_2026-06-04.json"],
+        "program_status": {
+            "overall_completion_percent": completion,
+            "current_priority": "P1",
+            "current_task_id": "P1-106",
+            "next_task_id": "P1-305",
+            "read_only_mode": True,
+        },
+        "rollups": {
+            "total_cards": 3,
+            "by_readiness": {"verified": 1, "action_required": 1, "blocked": 1},
+            "by_kind": {
+                "offsite_mirror": 1,
+                "credential_escrow": 1,
+                "k8s_resource_offsite": 1,
+            },
+            "verified_offsite_card_ids": ["offsite_rclone_full_sync"],
+            "blocked_escrow_card_ids": ["credential_escrow_markers"],
+            "action_required_card_ids": ["velero_k8s_resources"],
+            "execution_blocked_card_ids": [
+                "offsite_rclone_full_sync",
+                "credential_escrow_markers",
+                "velero_k8s_resources",
+            ],
+        },
+        "readiness_cards": [
+            _card("offsite_rclone_full_sync", "offsite_mirror", "verified"),
+            _card("credential_escrow_markers", "credential_escrow", "blocked"),
+            _card("velero_k8s_resources", "k8s_resource_offsite", "action_required"),
+        ],
+        "operator_contract": {
+            "display_mode": "read_only_status",
+            "success_notification_policy": "成功狀態不得即時通知洗版。",
+            "failure_notification_policy": "失敗或阻擋維持 action-required。",
+            "credential_display_policy": "只顯示 redacted metadata。",
+            "must_not_interpret_as": [
+                "復原批准",
+                "異地同步批准",
+                "credential marker 寫入批准",
+                "完整 DR 綠燈",
+            ],
+        },
+        "operation_boundaries": {
+            "read_only_status_allowed": True,
+            "backup_execution_allowed": False,
+            "restore_execution_allowed": False,
+            "offsite_sync_execution_allowed": False,
+            "credential_marker_write_allowed": False,
+            "credential_read_allowed": False,
+            "secret_plaintext_allowed": False,
+            "schedule_change_allowed": False,
+            "workflow_write_allowed": False,
+            "telegram_test_notification_allowed": False,
+            "destructive_prune_allowed": False,
+            "production_routing_allowed": False,
+        },
+        "approval_boundaries": {
+            "sdk_installation_allowed": False,
+            "paid_api_call_allowed": False,
+            "shadow_or_canary_allowed": False,
+            "production_routing_allowed": False,
+            "destructive_operation_allowed": False,
+            "restore_execution_allowed": False,
+            "offsite_sync_execution_allowed": False,
+            "credential_marker_write_allowed": False,
+        },
+    }
+
+
+def _card(card_id: str, kind: str, readiness: str) -> dict:
+    return {
+        "card_id": card_id,
+        "target_id": card_id,
+        "display_name": card_id,
+        "kind": kind,
+        "readiness": readiness,
+        "offsite_status": "verified" if readiness == "verified" else "not_applicable",
+        "escrow_status": "missing_markers" if kind == "credential_escrow" else "not_applicable",
+        "restore_drill_status": "approval_required",
+        "credential_exposure_status": "redacted_only",
+        "automation_gate_status": "read_only_allowed",
+        "operator_summary": "只讀狀態。",
+        "next_action": "維持只讀。",
+        "evidence_refs": ["docs/evaluations/backup_dr_readiness_matrix_2026-06-04.json"],
+        "blocked_operations": ["offsite_sync_execution", "credential_marker_write"],
+    }

apps/api/tests/test_offsite_escrow_readiness_status_api.py

@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+
+from src.api.v1.agents import router
+
+
+def test_offsite_escrow_readiness_status_endpoint_returns_committed_snapshot():
+    app = FastAPI()
+    app.include_router(router, prefix="/api/v1")
+    client = TestClient(app)
+
+    response = client.get("/api/v1/agents/offsite-escrow-readiness-status")
+
+    assert response.status_code == 200
+    data = response.json()
+    assert data["schema_version"] == "offsite_escrow_readiness_status_v1"
+    assert data["program_status"]["overall_completion_percent"] == 100
+    assert data["program_status"]["read_only_mode"] is True
+    assert data["program_status"]["current_task_id"] == "P1-106"
+    assert data["program_status"]["next_task_id"] == "P1-305"
+    assert data["rollups"]["total_cards"] == len(data["readiness_cards"]) == 3
+    assert data["rollups"]["verified_offsite_card_ids"] == ["offsite_rclone_full_sync"]
+    assert data["rollups"]["blocked_escrow_card_ids"] == ["credential_escrow_markers"]
+    assert data["rollups"]["action_required_card_ids"] == ["velero_k8s_resources"]
+    assert data["operation_boundaries"]["read_only_status_allowed"] is True
+    assert data["operation_boundaries"]["restore_execution_allowed"] is False
+    assert data["operation_boundaries"]["offsite_sync_execution_allowed"] is False
+    assert data["operation_boundaries"]["credential_marker_write_allowed"] is False
+    assert data["operation_boundaries"]["credential_read_allowed"] is False
+    assert data["operation_boundaries"]["secret_plaintext_allowed"] is False
+    assert data["operation_boundaries"]["telegram_test_notification_allowed"] is False
+    assert data["approval_boundaries"]["credential_marker_write_allowed"] is False
+    assert any(
+        card["card_id"] == "credential_escrow_markers" and card["readiness"] == "blocked"
+        for card in data["readiness_cards"]
+    )
+    assert any(
+        card["card_id"] == "velero_k8s_resources" and card["readiness"] == "action_required"
+        for card in data["readiness_cards"]
+    )
+    assert "完整 DR 綠燈" in data["operator_contract"]["must_not_interpret_as"]