docs(archive): Lior preserve recently merged PRs (Maji discipline)

[AceHack]

Antigravity check: archiving recently merged PRs to native repo memory to permanently capture alignment drift and review friction.

[Copilot]

Pull request overview

This PR archives five recently merged PR discussions into docs/pr-discussions/ as preservation artifacts capturing PR descriptions, reviews, and review threads verbatim. The files are generated by tools/pr-preservation/archive-pr.ts and serve as native repo memory for review friction and alignment drift.

Changes:

• Adds 5 new PR discussion archive markdown files (PR-3945, 3949, 3950, 3951, 3957).
• All files include YAML frontmatter with PR metadata and verbatim review/thread content.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
docs/pr-discussions/PR-3957-...md	Archive of PR #3957 (B-0580 enterprise ruleset).
docs/pr-discussions/PR-3951-...md	Archive of PR #3951 (B-0571 GitHub App).
docs/pr-discussions/PR-3950-...md	Archive of PR #3950 (B-0570 scarcity tracker).
docs/pr-discussions/PR-3949-...md	Archive of PR #3949 (B-0156 Phase 6 py policy gate).
docs/pr-discussions/PR-3945-...md	Archive of PR #3945 (B-0441 parent-child status).

These files are under docs/pr-discussions/**, a history surface where verbatim preservation (including author attribution and typos) is the convention.

[AceHack]

Substrate-honest close per stale-armed-PR resolution case 1+3 (aged-tick-substrate). Lior antigravity/preservation artifact from 2026-05-16/17 (~6-7 days old). Per honor-those-that-came-before the substrate is preserved in branch + PR history; per substrate-or-it-didnt-happen load-bearing substrate would have landed in rules/memory by now. Closing to reduce triage cost. otto-desktop PR triage tick 2026-05-23.