fix(BA-5878): close accelerator pattern gap for *_power and *_temperature

The window-stat gauge patterns lagged behind what legacy accelerator
plugins actually publish:

- *_power: legacy emits both stats.max and stats.avg; this PR was
  emitting only stats.max.
- *_temperature: legacy emits both stats.max and stats.avg; this PR
  was emitting neither.

Surveyed plugins (rebellions/common, rebellions/atom_max, habana, ipu,
mock):
- All emit *_mem (max only) and *_util (max + avg).
- Only mock currently emits *_power and *_temperature, both with
  {avg, max} filters.

Extend STATS_MAX_GAUGE_METRIC_PATTERNS to include _temperature and
STATS_AVG_GAUGE_METRIC_PATTERNS to include _power and _temperature so
the new pipeline matches what every legacy plugin actually publishes.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: seedspirit

src/ai/backend/common/clients/prometheus/metric_types.py

@@ -82,11 +82,11 @@ def to_list(self) -> list[MetricPreset]:
     "io_scratch_size",
 })
 STATS_MAX_GAUGE_METRIC_PATTERNS: Final[frozenset[str]] = frozenset({
-    r"[A-Za-z0-9][A-Za-z0-9_-]*_(mem|util|power)",
+    r"[A-Za-z0-9][A-Za-z0-9_-]*_(mem|util|power|temperature)",
 })
 STATS_AVG_GAUGE_METRICS: Final[frozenset[str]] = frozenset()
 STATS_AVG_GAUGE_METRIC_PATTERNS: Final[frozenset[str]] = frozenset({
-    r"[A-Za-z0-9][A-Za-z0-9_-]*_util",
+    r"[A-Za-z0-9][A-Za-z0-9_-]*_(util|power|temperature)",
 })
 STATS_MAX_OVER_RATE_METRICS: Final[frozenset[str]] = frozenset({"cpu_util"})
 STATS_AVG_OVER_RATE_METRICS: Final[frozenset[str]] = frozenset({"cpu_util"})

tests/unit/manager/services/utilization_metric/test_container_metric.py

@@ -820,7 +820,7 @@ def test_stats_queries_render_legacy_labels_from_typed_value_types(self) -> None
             "backendai_container_utilization"
             '{kernel_id=~"12345678-1234-5678-1234-567812345678",'
             'container_metric_name=~"io_scratch_size|mem|'
-            '[A-Za-z0-9][A-Za-z0-9_-]*_(mem|util|power)",'
+            '[A-Za-z0-9][A-Za-z0-9_-]*_(mem|util|power|temperature)",'
             'value_type="current"}))[5m:]),'
             '"value_type","stats.max","value_type",".*")'
             " or "
@@ -835,7 +835,7 @@ def test_stats_queries_render_legacy_labels_from_typed_value_types(self) -> None
             "label_replace(avg_over_time((sum by (container_metric_name,kernel_id,value_type)("
             "backendai_container_utilization"
             '{kernel_id=~"12345678-1234-5678-1234-567812345678",'
-            'container_metric_name=~"[A-Za-z0-9][A-Za-z0-9_-]*_util",'
+            'container_metric_name=~"[A-Za-z0-9][A-Za-z0-9_-]*_(util|power|temperature)",'
             'value_type="current"}))[5m:]),'
             '"value_type","stats.avg","value_type",".*")'
             " or "