TemplateEngine-011: ResolvedNativeAlarmSource bindings were absent from the
flattened-config revision hash, so edits to a native alarm source binding
(source reference, connection, condition filter, locked state) went undetected
by staleness detection. Add a HashableNativeAlarmSource record and fold the
sorted, null-when-empty NativeAlarmSources collection into HashableConfiguration
in its alphabetical slot. WhenWritingNull keeps every native-source-free config
byte-identical to its pre-migration hash (pinned literal test proves it), so the
migration is surgical: only native-source-bearing instances flip stale once
after upgrade; redeploy clears it — deliberate.
Claude-Session: https://claude.ai/code/session_01MtdgwpEeCUn6cUA5f1LMPj
Fold a List attribute's ElementDataType into the hashable projection so a
change to the element type (e.g. Int32 -> Double) with identical JSON-encoded
values is detected as a staleness/revision change. Inserted in alphabetical
position; null ElementDataType (scalars) is omitted by the canonical
serializer (WhenWritingNull), so scalar-only configs hash identically to
before. DiffService.AttributesEqual gains the same comparison to keep the
structured diff in parity with the staleness hash. Adds tests for differing
vs. equal ElementDataType (hash + diff) and the scalar no-op guard.
Joseph Doherty