docs(handoff): rank 42 built and in flight as homelab-infra#749 — two guards walkable by a NAME, one banner carrying the DSN

[ZacxDev]

Records rank 42 of the tmux-webapp arc: all three UI residuals closed in ZacxDev/homelab-infra#749 (OPEN at time of writing).

Status replaced (0.8.28 → the current 0.8.29 authenticated posture), with the "loop is closed and proven" evidence carried forward across the replace after the write gate flagged it. Open investigations and Gotchas appended.

Worth reading even if you skip the rest:

• Two clawgate guards, both with docstrings asserting they were unwalkable, were walkable by a name — aaOffScreen by a CSS unit, aaEvictsIn by an import alias. Both read a derived surface while a defining one sat next to them.
• Redacting the pgx DSN out of the operator banner would have destroyed the only copy of the driver error: the three toggles that build that notice logged it nowhere.
• The devrc clone was 2 commits behind on this doc, so the working copy still described 0.8.28 and an open rank 39. Read the doc from the ref, or fast-forward first.

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🤖 Generated with Claude Code

https://claude.ai/code/session_01Mi9GPkd2dFWCBcEPCk8v1q

[ZacxDev]

Superseded by the arc-wide handoff, which contains this commit plus the full record of the tmux-page round.