The evidence captures the new regression scripts, formal-first query
narrowing, and the fresh verification trail used to support the next
round of fallback removal.
Constraint: Evidence must match commands and outcomes actually executed in backend worktree
Rejected: Fold this into an older summary doc | would hide the stepwise proof for fallback reduction
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep appending fresh verification evidence here until the remaining legacy fallback is either removed or explicitly retained
Tested: Evidence cross-checked against backend worktree commands, regression logs, and targeted test outputs
Not-tested: No doc export/render pipeline executed
tangweijie
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