feat(db): shared live-query observer + migrate all five adapters (RFC #1623 step 3)#1642

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kevin-dp wants to merge 18 commits into

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refactor/live-query-observer

Commits on Jul 13, 2026

test(db): cover live-query keyed-state invariant on recompile

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fix(solid-db): clear keyed state before subscribing to a new collection

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Commits on Jul 20, 2026

fix(db): FIFO non-reentrant observer dispatch over subscription records

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fix(db): release the collection subscription on dispose during initial replay

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fix(db): seed late observer subscribers; reject subscribe after dispose

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fix(db): drive observer snapshots from a collection-owned state revision

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test(angular-db): align the mock collection with the real collection contract

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fix(db): publish collection status changes through the canonical path

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fix(db): per-consumer initial-state policy; lazy snapshot materialization

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fix(db): remove deferInitialNotify — event reordering gone by construction

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fix(db): make observer construction inert — sync activates on first subscribe

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fix(solid-db): generation-guard the resource's async continuations

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docs(db): mark the observer as internal/unstable; honest changeset

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Merge branch 'main' into refactor/live-query-observer
KyleAMathews
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