refactor(client): command decorations replace the hostBacked contribution mode

A popup on a host command is not a second command — it is what that
command's BARE invocation does on this client. CommandContribution loses
hostBacked (contributions are pure client commands again; a host-name
collision fails loud, unchanged for /model), and the contract gains
CommandDecoration + command.decorate(): key = the HOST command name, no
catalog row, no claim participation. Dispatch consults decorations only on
the bare paths (menu pick / bare enter) after the host row resolves; space
and argued enter never see them — the two edges hostBacked had to guard
explicitly hold by construction in the decoration model. A decorated name
with no host row in the session's directory never fires (a decoration
cannot manufacture a command).

ui-permission switches register→decorate with zero behavior change
(options still read the permissions projection; a pick still submits
'/permission <preset>'). Specs rewrite to the decoration semantics: no
catalog row, bare-enter popup vs argued-enter host claim, space host
claim, no-host-row miss, unavailable fall-through, duplicate fail-loud.
This commit is contained in:
imccyu
2026-07-29 12:01:36 +08:00
parent 79dbe4c6fb
commit 83c2115de8
12 changed files with 150 additions and 81 deletions
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English | [中文](README.zh.md)
Permission preset selection plugin, browser half: the `/permission` popupSelect contribution (registered through `ctx.command`). The contribution is `hostBacked` — the host's `/permission` command owns the slash-menu row, the argued path (`/permission <preset>` switches directly), and the durable lifecycle logging; this entry supplies only the bare-invocation picker: one flat preset list with the current value marked active, where a pick submits the `/permission <preset>` command line. Options and the active mark read the session's `permissions` projection (the same host-computed select the composer chip renders), so both surfaces share one read source and one write path, and the pushed projection frame is the single confirmation both follow. The contribution is available exactly while the projection key is present; a permission-less composition shows no picker.
Permission preset selection plugin, browser half: a popupSelect DECORATION hung on the host `/permission` command (`ctx.command.decorate`). A decoration is not a second command — the host command keeps its slash-menu row, the argued path (`/permission <preset>` switches directly), and the durable lifecycle logging; the decoration replaces only the bare invocation with the picker: one flat preset list with the current value marked active, where a pick submits the `/permission <preset>` command line. Options and the active mark read the session's `permissions` projection (the same host-computed select the composer chip renders), so both surfaces share one read source and one write path, and the pushed projection frame is the single confirmation both follow. The decoration is available exactly while the projection key is present; a permission-less composition shows no picker (a decoration never manufactures a catalog row).
The `/client` export surface is the plugin body (`apply`/`inject`).