[masarray]

P1 — C264 native WPF field alignment (isolated implementation)

Base: exact verified cumulative ARSAS #501 HEAD 34d8f55f499be94cc49539ba632aafa6efdef105. Cross-reference the audited plans: #502 and #503. This is code, unlike those documentation-only PRs.

• IED IP: center ComboBox display and explicitly center the real editable PART_EditableTextBox on Loaded; preserve OS/WPF theme template, saved/recent IP bindings, validation and focus.
• Fault Records: remove the inherited 9px insets only in Get checkbox column, aligning tri-state header and row checkboxes by shared centered column geometry; preserve all other column padding.
• Add C264FieldAlignmentRegressionTests contracts that assert both modes, scoped styles, retained bulk-selection semantics, no template rewrite, and unaffected text-cell styling.

Safety boundaries: no modifications to ARIEC61850 pin, IED controls, report acquisition, static DataSet, Npcap, GOOSE, SNTP, CI guard, release, or main. Draft: no Windows CI or DPI visual acceptance has yet been claimed. Must qualify on exact HEAD and user screenshot at 100/125/150% scale. Other defects (typed structured FCD and same-host GOOSE adapter classification) remain in planned P2/P3 follow-on PRs.

[masarray]

Exact-head CI qualification — 2026-10-10

Commit f90f4697fb1ee607bb5500119f6b5298ce01879f (P1 only, four files, branch exactly 4 commits ahead / 0 behind #501 baseline).

• Build ARSAS Windows x64: SUCCESS. Exact SHA checkout, pinned-engine resolution, solution compile, regression tests, portable x64 publish, executable smoke and artifact upload succeeded.
• Portable single EXE artifact: ARSAS-win-x64-portable-single-exe.
• Merge Execution Guard, Golden Budget Lock, Golden Provenance, and Repeat-Run Stability: SUCCESS.
• Mainline Readiness: expected CLOSED/FAIL, because independent R10 physical authority is not approved. Do not disable or weaken gate.
• Field trial still required: center IP editor and Fault Records header/row checkbox at 100/125/150% Windows scaling; verify no regressions to recent-endpoint typing and tri-state bulk selection. P2 typed report completeness and P3 GOOSE same-host NIC selection are outside this PR.

This PR stays DRAFT. No merges, engine changes or release changes.

[masarray]

Disposition: Superseded — administrative consolidation of a verified commit-ancestry milestone, not a merge into main or physical acceptance.

Canonical replacement: #543 (head 6285867780b8ea79c231d72a3819e9e5f99748d2; stays OPEN for staged integration). This PR head f90f4697fb1ee607bb5500119f6b5298ce01879f is an exact Git ancestor of #543 head: GitHub compare old-head...canonical-head = ahead, ahead=233, behind=0.

Unique delta: C264 IP dialog alignment and Fault Records select-all layout; 4 changed files, including tests/ARSAS.Tests/C264FieldAlignmentRegressionTests.cs. No original commits from this PR are omitted from #543's commit ancestry; the original branch and historical patch/tests remain recoverable. The final tree's semantic equivalence and physical qualification are not claimed by ancestry alone: these are follow-up requirements at the canonical tip.

Safety: Close only the redundant intermediate PR conversation, do not delete any branch. No code edits, no engine repin, no change to main, stable v1.6.42, checksums or safety/CI gates. This particular PR is not the remaining integration gate.

Follow-up: Revalidate the accepted compact IP-connect UX on the final integration candidate; keep cross-thread IP-form redesign independent. Track unfinished acceptance and missing behaviors via #543 or the later authoritative integration/qualification workstream; do not merge #543 to main without required gates.