(cherry picked from commit 1db02545f74c96b3b92be4fc32954659cec1f814)
Reconcile-conflict: A14b E402 imports referencing cloud.handler_core (does not exist here; core methods live in server.py) — kept HEAD imports with incoming's noqa: E402 markers, dropped the unused core_mod import (verified unused elsewhere in both files).
- CostStore: per-model breakdown, report_by_creator (JOIN tasks.created_by),
dual-column reports with priced_usd_micros, unpriced_models listed
separately and a billing note (proxy price, not the relay bill);
_report itself untouched, old exact-key tests keep passing.
- Hard cutoff: cost.quota_cutoff_reason is the single USD/unpriced-cap
decision; worker._quota_exceeded now delegates to it (identical
messages); claim gate, turn boundary and poll kill stop spend and
record interrupted + quota reason + audit; auto-resume re-checks
live quota before requeueing.
- Approval timeout (G7 ops metric): cloud/approval_timeout.py —
default stays 600s, >20% timeout rate recommends 1800s, <5% keeps,
mid-range keeps; stats + recommendation + info log; wired into
/metrics (member projects, no log spam) and a global-admin
/admin/ops/approval-timeout endpoint (sweeps overdue first).
- Server: task/project cost endpoints return dual-column reports;
new GET /users/me/cost and GET /admin/cost-by-creator.
- Tests: cloud/tests/test_cost_quota.py, 10 tests.
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