docs(story-mode): this round's fields and the invariants behind the frontend fixes

API reference: `roundsOk` carries `null` for a run still going, a
background command's `output`, script writes in `edits`, what `helpers`
counts, and the page text budget behind `truncated`.

src/web/CLAUDE.md: panels kept by identity, the balloon text span the
clamp must target, the drawer's unchanged-refresh skip and held turn, the
drawer under the bar and the inert page behind a full-width one, and text
tokens versus accents.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

docs/api-reference.md

@@ -1076,15 +1076,15 @@ A turn is one prompt and everything Claude did for it. `origin` says who sent th
 
 A helper started in the background (`run_in_background`, or as a teammate: `status: teammate_spawned`) has `helper.background` and `helper.running: true` until it reports back. A `<task-notification>` (matched by tool call) or a `<teammate-message>` (matched by name) joins the answer, tool count and duration back onto the helper in the turn that started it. A report that arrives after that turn ended starts a turn of its own (origin `task`) whose prompt event carries the report as `output` and the helper as `helper`; one that lands mid-turn is an event with intent `notice` instead of a new mission. `page.helpersRunning` counts the helpers still out.
 
-A Bash call sent to the background (its result is only `Command running in background with ID: …`) has `running: true` and no `ok`: it started, nothing more is known. Its `<task-notification>` settles `ok` from the exit code in the summary, and reading the job's output file later is a test run when that output reports test counts.
+A Bash call sent to the background (its result is only `Command running in background with ID: …`) has `running: true` and no `ok`: it started, nothing more is known, and its `output` says so instead of carrying the launch note meant for Claude. Its `<task-notification>` settles `ok` from the exit code in the summary (the `output` then names the exit code), and reading the job's output file later is a test run when that output reports test counts.
 
 ### A page
 
 A `page` carries the turn's summary fields plus:
 
-- `events`: one per prompt, sentence Claude wrote and tool call. Each has `intent`, `tool`, `label` and, when the call returned, `ok` (`false` when the result was flagged as an error, or reported failed tests or lint problems a pipe kept from the exit code). Depending on the call: `edit` (an Edit/Write, hunks in Claude Code's own `structuredPatch` shape), `edits` (files a Bash call wrote through here-documents or `printf`/`echo` redirects, or that Claude Code says it changed; an append's hunk has `atEnd: true` and no line numbers, since where it lands is not in the command), the tail of `output`, `tests` (`{ passed, failed, errors? }`, counted on the whole output before it is cut), `helper`, `files` (files a Bash call printed with `cat`/`head`/`tail`, resolved against the command's folder), `headline` (the part of a one-liner that decided its intent), `commits`, `subject` (the first commit's message, when the command spells it out with `-m` or a `git commit -F -` here-document), `ships` (`push` / `pr`), `running` (see Background work), `question` and, for prompts, `origin`. The advisor (a server tool) is an event with tool `Advisor` and intent `helper`; its answer is encrypted in the transcript. In plan mode the plan file under `~/.claude/plans/` is planning (intent `plan`, its numbered steps as `todos`), and `ExitPlanMode`'s result carries the plan (`output`) and your answer (`Approved` / `Sent back`).
-- `panels`: at most 12, each `{ kind, events, caption: { story, director }, balloon?, files?, notes?, helpers?, todos?, tests?, ok?, rounds?, roundsOk?, question?, live? }`, with `events` as indices into `events`. `balloon.who` is `you`, `claude` or `note` (words that start a turn but are not yours: a background job's report, another session's message). A loop's `roundsOk` lists every test run in order, `true` where it passed, so a failure inside a round that passed in the end still shows. Kinds: `mission`, `investigate`, `research`, `plan`, `backup`, `fix`, `check`, `loop` (fix and check rounds folded), `run`, `save`, `ask`, `compact`, `montage` (quieter panels folded to fit) and `complete`.
-- `filesChanged`, `added`, `removed` (summed per edit), `helpers`, `helpersRunning`, `noneWorked` (every tool call of the turn failed, so the last panel is no celebration), `durationMs`, `partial` (the turn began before the part that was read) and `truncated` (older outputs were dropped to keep the page small).
+- `events`: one per prompt, sentence Claude wrote and tool call. Each has `intent`, `tool`, `label` and, when the call returned, `ok` (`false` when the result was flagged as an error, or reported failed tests or lint problems a pipe kept from the exit code). Depending on the call: `edit` (an Edit/Write, hunks in Claude Code's own `structuredPatch` shape), `edits` (files a Bash call wrote through here-documents or `printf`/`echo` redirects, that a python or node script fed by a here-document opens for writing, or that Claude Code says it changed; the last two have no lines, since what changed is not in the command; an append's hunk has `atEnd: true` and no line numbers, since where it lands is not in the command), the tail of `output`, `tests` (`{ passed, failed, errors? }`, counted on the whole output before it is cut), `helper`, `files` (files a Bash call printed with `cat`/`head`/`tail`, resolved against the command's folder), `headline` (the part of a one-liner that decided its intent), `commits`, `subject` (the first commit's message, when the command spells it out with `-m` or a `git commit -F -` here-document), `ships` (`push` / `pr`), `running` (see Background work), `question` and, for prompts, `origin`. The advisor (a server tool) is an event with tool `Advisor` and intent `helper`; its answer is encrypted in the transcript. In plan mode the plan file under `~/.claude/plans/` is planning (intent `plan`, its numbered steps as `todos`), and `ExitPlanMode`'s result carries the plan (`output`) and your answer (`Approved` / `Sent back`).
+- `panels`: at most 12, each `{ kind, events, caption: { story, director }, balloon?, files?, notes?, helpers?, todos?, tests?, ok?, rounds?, roundsOk?, question?, live? }`, with `events` as indices into `events`. `balloon.who` is `you`, `claude` or `note` (words that start a turn but are not yours: a background job's report, another session's message). A loop's `roundsOk` lists every test run in order, `true` where it passed and `null` for one still running, so a failure inside a round that passed in the end still shows, and a live loop shows the runs that finished. Kinds: `mission`, `investigate`, `research`, `plan`, `backup`, `fix`, `check`, `loop` (fix and check rounds folded), `run`, `save`, `ask`, `compact`, `montage` (quieter panels folded to fit) and `complete`.
+- `filesChanged`, `added`, `removed` (summed per edit), `helpers` (the turn's own helper calls; a report turn's prompt carries the helper it answers, which is not counted), `helpersRunning`, `noneWorked` (every tool call of the turn failed, so the last panel is no celebration), `durationMs`, `partial` (the turn began before the part that was read) and `truncated` (older outputs, hunks and helper texts were dropped to keep the page small: a page carries at most 120,000 characters of them, newest first; an edit that lost its lines keeps its counts and an empty `hunks`).
 
 ## Git worktrees of a case