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fix(lifecycle): stock hello app keeps its session after Linux native Close #176
Description
Activity
KEL-185's Linux lifecycle correction is merged in PR #228 as
9eb54fb7fe31f94a3c1e2c70b97714b869768c67.Native acceptance used the exact final candidate
e4987703812a9c7ebb8d2656b870bbb99f03c730; its tree is identical to the landed merge. Environment: Ubuntu 26.04.1 x86_64, GNOME 50.1 native Wayland, WebKitGTK 2.52.6, Bun 1.4.2, Rust 1.97.1.Run Native Close UTC (2026-09-12) CLI exit Captured process identities exited Exact stage removed 1 06:19:11 0 10/10 yes 2 06:20:05 0 10/10 yes; fresh stage and process identities Both used the untouched generated stock app. Native active/showing/visible frames, stock content, actual host PID/start ticks, reciprocal Wayland socket binding to the local compositor, and the native Close action were recorded. No forced cleanup was used. Screenshot methods were unavailable; no bitmap or pixel-rendering claim is made.
The final candidate and actual landed primary checkout each passed full
just ci: 659 workspace tests passed with 5 explicit skips, plus format, warning-denied workspace Clippy, TypeScript, generated docs/rendering and dependency checks. Final candidate CI and landed-main CI passed. Landedkeld doctorexited 0.The current README and quick-start qualify this Ubuntu result and retain historical failure records. X11, non-Debian and release packaging remain unverified. Raw source/fixture/process/stage records, command logs and checksums are retained on KEL-185; final evidence archive SHA-256:
cce1966c0a7488d770625359a0e0ff074bb23ed788c48df733adffe7af767eed.
Current defect
On physical Ubuntu 26.04.1/GNOME Wayland, the stock app generated at docs candidate 8981b67 (runtime base dcc4676) opens normally. Clicking native Close removes the renderer, but CLI, host, Bun/bwrap and the nonce stage remain after an independent bounded process observation. Ctrl-C cleanup works and is a separate result.
Evidence and ownership
Maintainer coordination: KEL-185; source observations from KEL-183.
crates/keld-cli/templates/hello/src/main-body.tsawaits forever after echo without consuming lifecycle events. The Linux window loop emits LastWindowClosed and waits for Bun Quit; core forwards that existing event.Acceptance
Reproduce with the untouched generated app before fixing. Derive the smallest change at the existing lifecycle/transport owner: preserve one authenticated link, existing framing/correlation and custom listener behavior. No blanket kill, platform-loop workaround, duplicate parser or sleep retry. Verify native Close, descendant/stage cleanup and relaunch independently, and retain the unfixed failure. Run required Rust/TS/conformance/real-OS gates and independent review.
The Linux operator owns the fix through a separate claimed worktree. Discuss before competing edits. If the shared transport contract must change, record the prerequisite/spec decision first. Foundation #167; docs #172 must qualify behavior until fixed.