fix(security): restore canonical CSV control-prefix boundary - #1177

Draft

seonghobae wants to merge 10 commits into

fix/csv-formula-control-prefix-1103-successor

Commits on Sep 6, 2026

⚡ Bolt: [performance improvement] Replace O(N^2) list membership checks with O(1) dictionary key deduplication in chart export
seonghobae
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f52dc97
test(security): preserve CSV C0 and full-width formula regressions
seonghobae
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a9c2913
fix(security): neutralize CSV control-prefix formula cells
seonghobae
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1157ba9
docs(security): record CSV parser-disagreement boundary
seonghobae
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f9875ae
repair(ci): drop superseded chart note from Ruff owner
seonghobae
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0725eb3
repair(ci): return chart optimization to canonical owner
seonghobae
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1d38e8e
repair(ci): restore protected chart bytes exactly
seonghobae
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a7b0030
chore(ci): verify restacked CSV boundary
seonghobae
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e7d8a08
Merge PR #1176 prerequisite into CSV security repair
seonghobae
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54c45ff
docs(security): record canonical prerequisite lineage
seonghobae
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607957e