Server responses now require execution_scope, but the strict frontend schema rejected it and prevented investigation and appointment loading. Declare it in the shared response schema and align task fixtures; regression coverage exercises summaries, details and both task categories.
Server responses now include source.replay_context, including null for ordinary tasks. The strict frontend source schema rejected the new field and blocked the shared task snapshot and detail loading path.
Validate replay metadata explicitly and cover investigation, appointment, and scheduled task contracts plus browser loading. Six acceptance regressions failed before the fix; all 877 unit tests and the focused browser loading test passed after it. Lint and type checking passed. The separate approval browser case remains blocked by its reconnect-toast assertion.
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