fix(git-status): #543 landing fixes

A lone repository git could not read rendered as a clean, empty one. The
panel took its single-repository view whenever the overview held one row,
and the error row only exists in the list view, so it showed "Nothing
uncommitted / No remote configured" with an empty header while the
indicator said "? 1". The single-repository view now needs a readable
repository and an untruncated overview; anything else takes the list view
(headed "1 repository"), and the tooltip names the unreadable repository
instead of saying "no branch".

The same condition covers a limit of 1 in a folder of several projects,
now that max repositories can go down to 1: the one row shown keeps the
"Showing the first" notice instead of looking like the only repository.

A repeated timeout query parameter reaches the route as an array, and
calling trim() on it answered 500 with an internal message, before the
ownership check. The route now treats a non-string timeout as "default",
like an empty or absent one, and the route test pins it.

The browser test gains the lone-unreadable-repository case (error row,
no "Nothing uncommitted", "? 1", tooltip names the repository) and the
truncated single-row case. Both fail against the unfixed panel.

The git timeout input steps by 1, not 5: the save accepts any whole
number of seconds and step 5 flagged values like 7 as invalid.

Docs: api-reference says repoLimit is only present in the
folder-of-projects case, the Settings Reference and Working With Files
glyph lists mention "? N", and the module header says the repository
count is the caller's maxRepos.

The PR's own changeset is removed; its text goes into the single
combined release changeset.

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

docs/api-reference.md

@@ -777,7 +777,7 @@ Admin only in multi-user mode (`403`), like `POST /api/cases/link`: it writes ou
 
 Both routes accept two optional query parameters, which the UI sends from its per-device settings and the server clamps again: `maxRepos` (1 to 50, default 12) and `timeout` (seconds one git command may run, 5 to 120, default 30). An empty or non-numeric value means the default. A repository whose `git status` fails (typically a timeout on a slow network share) is **kept in `repos[]`** with `status.state: 'error'` and the reason in `status.error`, not dropped, so it is visible that something is not being reported.
 
-`data` is `{ state, repos, reposTruncated, repoLimit, checkedAt }`:
+`data` is `{ state, repos, reposTruncated, repoLimit, checkedAt }` (`repoLimit` in the folder-of-projects case only):
 
 - `state: 'ok'`: `repos[]`, each `{ name, path, status }` where `name` is the repository folder's name, `path` its root relative to the working directory, and `status` is:
   `branch` (null when `detached`), `upstream`, `ahead`, `behind`, `hasRemote`, `counts` (`staged`, `unstaged`, `untracked`, `conflicted`, `uncommitted` = distinct paths, `stashes`), `files[]` (`path` relative to `repoRoot`, `origPath` for a rename, `index` and `worktree` status letters, `kind`: `staged` \| `unstaged` \| `untracked` \| `conflicted`; a file that is staged *and* modified again appears once per kind), `filesTruncated`, `unpushedCount` (exact) and `unpushed[]` (newest first: `hash`, `author`, `time` in epoch seconds, `subject`), `repoRoot`, `checkedAt`.

docs/wiki/Settings-Reference.md

@@ -63,8 +63,9 @@ Ultracode Windows, Cron.
 
 **Bottom bar** (below the chips): **Git status** shows a small indicator at the right of the
 bottom bar, off by default and per device. It reads `● N` uncommitted files, `↑ N` commits not
-pushed, `⚠ N` merge conflicts, or `✓` when everything is committed and pushed. Click it for the
-Git window; see [Working With Files](Working-With-Files#git-changes). **Git status: group files
+pushed, `⚠ N` merge conflicts, `? N` repositories git could not read, or `✓` when everything is
+committed and pushed. Click it for the Git window; see
+[Working With Files](Working-With-Files#git-changes). **Git status: group files
 by folder** (per device, on by default) shows changed files under collapsed folders in that
 window; off lists every file by its full path. **Git status: max repositories** (per device,
 1 to 50, default 12) is how many repositories the window lists when a session's folder holds

docs/wiki/Working-With-Files.md

@@ -168,7 +168,7 @@ surface as an artifact attachment rather than a path you have to go and find.
 Agents often leave work uncommitted or unpushed. Turn on **App Settings → Header & Panels →
 Bottom bar → Git status** (per device, off by default) and the right of the bottom bar shows
 the active session's repository: `● 3` uncommitted files, `↑ 2` commits not pushed, `⚠` merge
-conflicts, `✓` when everything is committed and pushed.
+conflicts, `? 1` a repository git could not read, `✓` when everything is committed and pushed.
 
 Click it for a draggable window, in the style of the File Viewer: