Phase 0 of docs/OWN-STORE.md. Prepares the seam for the Room store while
the provider is still the store.
Task.id (the materialised instance row id) is gone; Task carries
occurrenceStart, its RECURRENCE-ID anchor, instead. updateInstance takes
(taskId, occurrenceStart, form) and AndroidTasksDataSource maps that back
to an instance row itself, so the provider path exercises the new
signature before Room exists.
Lazy-list keys move to Task.occurrenceKey. Two occurrences of one series
can appear in the same list once expansion is ours, and taskId alone
would collide there.
domain/Models.kt stops importing TasksContract — status, priority and
local-account constants now live in domain. StorageMode gains OWN as a
third value; LOCAL keeps meaning the dmfs provider until it is deleted.
Room 2.8.4 and room.schemaLocation added to the build.
Jean-Luc Makiola
11b20faf82