* fix(sync): resync the active session after reconnect transitions
Include the viewed session in reconnect recovery and trigger a targeted resync on transport switches so the active chat catches up after missed live events.
Constraint: Keep the fix in the sync layer instead of adding ChatContainer-only recovery
Rejected: Widen reconnect heuristics for every cached session | broader recovery scope than needed
Confidence: high
Scope-risk: narrow
* Avoid no-op reconnect resync store writes
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Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
