feat(cli): hyperframes history lists, undoes and restores a project's recorded changes (#4449)

* feat(cli): hyperframes history lists, undoes and restores a project's recorded changes

* fix(cli): an agent's history turn ends after 10 idle minutes on every path

A turn left open no longer takes the person's later edits: the engine
files a CLI turn's writes by the same idle rule as a preview window.
Studio claims take their paths back from an agent's window; refusals,
--json shapes, --limit and time parsing follow the review.

* refactor(cli): the project-history opener lives in its own module

The history command and other commands open a project's history the same
way: through a running preview, or directly under the engine's lock.

* docs(skills): the history loop lines sit in one marked trial block per skill

* fix(cli): a turn marker without its last write time has ended

Idle-limit tests set file times instead of racing the clock, and the
restore refusal test picks a ref no entry id starts with.

* docs(cli): the history entry shape comment names no other app

* refactor(cli): history reuses the busy error class and its who helper

* fix(cli): undo --who reverts the agent's whole last turn and nothing older

When the open turn recorded nothing, undo fell back to the agent's
earlier turn; when a mid-turn command split the turn, it reverted only
the newest part. The turn now keeps the entries it filed, and undo --who
reverts exactly those or refuses. Engine tests pin the write timing
rules, and a date that rolls over (Feb 31) is refused.

* fix(cli): an undo --who that meets a conflict leaves the whole turn as it was

It redoes the parts it already undid, lists the newer entries as they
are now, and offers --just-this and --back-to-before for the whole turn.
The last turn is recorded atomically before its marker is cleared.

* chore(cli): history keeps each file's comment share at or under main's

* fix(cli): history keeps log order past a turn's idle limit and undoes a turn's cut parts

* fix(cli): history drops unused imports and splits undo and reopen steps

Author: miguel-heygen

packages/cli/src/cli.ts

@@ -160,6 +160,7 @@ const commandLoaders = {
   info: () => import("./commands/info.js").then((m) => m.default),
   compositions: () => import("./commands/compositions.js").then((m) => m.default),
   timeline: () => import("./commands/timeline.js").then((m) => m.default),
+  history: () => import("./commands/history.js").then((m) => m.default),
   benchmark: () => import("./commands/benchmark.js").then((m) => m.default),
   browser: () => import("./commands/browser.js").then((m) => m.default),
   "remove-background": () => import("./commands/remove-background.js").then((m) => m.default),