Add time-series transforms (rate / downsample / resample)#306
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observability counters store only the current value (nothing turns a counter into a per-second rate) and cost_telemetry only buckets by day. Add Prometheus-style reset-aware ts_rate / ts_irate / ts_increase / ts_delta / ts_idelta plus ts_downsample (tumbling buckets) and ts_resample (grid, last/linear/none fill) over (timestamp, value) series. No wall clock — windows use the series' own timestamps. Wired through facade, executor (AC_ts_rate / AC_ts_downsample), MCP, and the Script Builder with a headless test batch and EN/Zh docs.
Up to standards ✅🟢 Issues
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| Metric | Results |
|---|---|
| Complexity | 62 |
| Duplication | 0 |
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What
observabilitycounters/gauges store only the current value (no counter→rate anywhere) andcost_telemetryonly buckets by day.ts_rate(series, *, window_s=None)/ts_increase/ts_irate— Prometheus-style, reset-aware, over(timestamp, value)pairs.ts_delta/ts_idelta— gauge first-to-last / last-two differences.ts_downsample(series, bucket_s, agg)— tumbling buckets (avg/sum/min/max/first/last/count).ts_resample(series, bucket_s, *, fill)— fixed grid (last/linear/None).No wall clock — windows use the series' own timestamps, so everything is deterministic.
Layers
utils/timeseries/(pure stdlibbisect, zero PySide6).ts_*symbols +__all__.AC_ts_rate,AC_ts_downsample.ac_ts_rate,ac_ts_downsample(read-only).test/unit_test/headless/test_timeseries_batch.py(11 tests, incl. counter reset + interpolation).v98_features_doc.rst(EN + Zh) + toctrees + 3 README What's-new sections.Verification
pytest test/unit_test/headless/test_timeseries_batch.py→ 11 passed.ruff check je_auto_control/clean; pylint 10.00/10; bandit clean; radon CC clean.