* Keep long live session logs stable while updating
* fix(editor): normalize content before append sync
* chore(editor): export e2e probe type and link gate motivator
Post-review cleanup: env.d.ts referenced the probe's method shape as an
inline literal, so a probe rename would only surface in the e2e spec;
the new reliability gate's motivatingLinks pointed at the repo root.
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Co-authored-by: Brennan Benson <brennanbenson@Brennans-MacBook-Pro.local>
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