Transaction observations bypass the Micrometer convention, and the Ktor delegating observer drops them entirely

[zantvoort]

• MicrometerQueryObserver.onTransaction (storm-micrometer/src/main/java/st/orm/micrometer/MicrometerQueryObserver.java:94-99) hardcodes the observation name and keys with a plain Observation.Context, bypassing the ObservationConvention that onExecute honors, so transaction observations cannot be renamed or re-tagged.
• DelegatingQueryObserver (storm-ktor/src/main/kotlin/st/orm/ktor/DelegatingQueryObserver.kt:27-33) overrides only onExecute, so every Ktor application silently emits no storm.transaction observations at all.
• QueryContext.shapeId() (storm-core/src/main/java/st/orm/core/spi/QueryContext.java:78) is exactly the low-cardinality statement identity suited to a metric tag and is never used by the observer.