Track: scap upstream Linux fix (periodic re-check)

[Detair]

Status

Our `client/src-tauri/Cargo.toml` pins `scap` to `Detair/scap@fix/linux-frame-enum` because upstream `CapSoftware/scap 0.1.0-beta.1` shipped a Frame enum restructure without updating the Linux pipewire backend. Our fork adapts linux/mod.rs + a Windows typo fix.

Re-check history

Date	Upstream HEAD	Result	CI run
2026-04-12	`c03f15a4`	ubuntu build fails (Frame enum still not adapted)	https://github.com/Detair/kaiku/actions/runs/24294543682

Upstream tracking

• CapSoftware/scap#178 — broader scope fix (sequence numbers + SystemTime + latest-buffer grab). Open since 2025-10-26, no updates.
• No Linux-related commits on upstream main since 2025-03-04.

When to re-check

• When CapSoftware/scap publishes a new release on crates.io
• When PR Refactor permissions: remove redundant KICK_MEMBERS check in MemberRoleDropdown #178 is merged
• When upstream `main` shows any new Linux commits (`gh api repos/CapSoftware/scap/commits?path=src/capturer/engine/linux&per_page=5`)
• Otherwise, quarterly

Re-check procedure

1. Clone latest upstream main: `gh api repos/CapSoftware/scap/branches/main --jq '.commit.sha'`
2. Temporarily point our `Cargo.toml` at that SHA
3. Push to a test branch, verify all 4 CI Build targets pass
4. If yes: merge, drop the Detair fork
5. If no: append a new row to the re-check history table above

Refs

• Original audit finding: fix(security): audit follow-up — advisory ignores, client dep patches, cleanup #513
• Design spec: `docs/superpowers/specs/2026-04-11-security-audit-followups-design.md` Topic 3
• Implementation plan: `docs/superpowers/plans/2026-04-11-scap-fork-cleanup.md`
• Closed re-check PR: chore(client): test if upstream scap main builds #520