Keep directly observed renderer listeners singular when bridge traversal
reaches them, while retaining separate paths for every exposed bridge member.
Preserve separate physical callsites and on/once operation identities.
Validation: 190 focused tests passed, including public CLI and stdio MCP
analysis and incoming feature tracing. Typecheck/lint and discovery passed.
The inert fixture was analyzed statically; no Electron target was executed.
Three alternating synthetic CLI tasks showed overlapping wall times (median
1.825s baseline, 1.808s current). Corrected bridge provenance increases serialized
task payload; no speed or context reduction is claimed. Actual model tokens
and full process-family CPU/peak memory were not measured.
Fixes#5586
morluto
506400748e