* feat: add service-managed self-update
* chore: add temporary self-update test scripts
* chore: simplify temporary script markdown fences
* chore: run frontend in temporary self-update scripts
* fix: show self-update job progress after apply
* chore: add real npm self-update test script
* fix: isolate npm self-update prefix
* fix: detect npm service installs from bin shim
* chore: reset service before real npm update test
* chore: expand real npm status diagnostics
* fix: preserve service home during self-update
* fix(cli): tee self-update helper output to a log file
* fix(cli): avoid launchd bootstrap race when reloading the macOS service
* fix(backend): run macOS self-update helper once via transient launchd plist
* fix(web): show self-update progress and lock the apply button until the update lands
* fix(cli): reinstall via the kandev wrapper on Homebrew self-update
* chore: remove temp self-update test scripts
* fix(web): drop unused apply path from useUpdates hook
* fix(backend): snapshot install state once in apply preflight
* docs: align self-update docs with transient LaunchAgent flow
* chore(release): run cli bundle from apps workspace root
* fix(backend): guard against concurrent self-update applies
* fix(backend): check scheme and helper paths in self-update apply
* fix(backend): drop duplicate binary name from npx manual command
* fix(cli): allow --help for service self-update without --intent
* fix(cli): harden self-update dir perms and darwin uid resolution
* fix(web): set required POST fields last in applyUpdate
* docs: use JSON body notation for the apply endpoint
* fix(backend): expire self-update guard so a stuck helper cannot wedge apply
* refactor(cli): collapse redundant writeSync branch in self-update log