The `--maxWorkers=2` fix from the previous commit was falsified by real CI:
run 34574847774 still ended with `[vitest-pool]: Worker forks emitted error /
Worker exited unexpectedly` while reporting 126 of 127 files passed and zero
FAIL lines. The worker that died was the one running
tests/native-surface.spec.ts — it produced NO results at all, which is the
same shape as the two earlier crashes (125/126 and 123/124: N-1 files
reported plus a silent worker exit at teardown).
So the consistent signature across all four crashes is a worker-recycling
race, not a test failure. `test:windows` now runs the whole suite in ONE fork
(`--maxWorkers=1`), which removes recycling entirely; the cost is wall-clock
(14 s -> 41 s locally, and the Windows step stays well inside its 30-minute
budget) and the signal is unchanged. Retries are still deliberately not used —
they would hide a real regression instead of removing the race.
The CI comment now records both Windows failure classes with their evidence,
so the next person can tell what this flag is for.
Two glyphs read wrong in the live instance:
- Tasks shows subagent sessions AND the host's background jobs, so a checklist
glyph described a page that does not exist. `VscLayers` (sheets stacked, i.e.
work running behind the conversation) says what the page is; the amber token
stays, so it still reads as live activity.
- The terminal was the widest glyph in the set and the only bare fill in a
strip of the plugin's own 1.5px-stroked icons, which made it look like a
heavy foreign block. It now renders a step down (0.85x the strip size, floor
10px) and every colored tab glyph gets a hairline outline of its own ink
(`stroke: currentColor` + `non-scaling-stroke`, so the line stays one device
pixel across the sets' mixed 16- and 24-unit viewBoxes; `paint-order: stroke`
centres it on the fill edge instead of fattening the shape).
tests/builtins.spec.ts pins both readings by glyph identity (tasks = layers,
terminal = the shrunk, outlined VscTerminal), so a future swap has to argue
with a failing assertion rather than with a comment.
Gates: typecheck / lint green, pnpm test 127 files / 1343 passed / 9 skipped.
- docs/plans/2026-09-11-file-icons-and-tab-glyphs.md: the design record —
what the two stacked PRs did, the measured upstream facts that made their
colored implementation redundant (rc.2's `FileTypeIcon`/`CodeFileIcon` with
the host's own palette, the classifier never returning a folder, the native
tab definition having no icon field while its title slot IS the chip), the
three merge conflicts and how each was resolved, what was deleted, the
catch-all semantics change, and the verification evidence.
- docs/plans/2026-09-10-dsh-0.1.5-rc.2-adaptation.md: cross-link it from the
change table.
- docs/external-plugin-guide.md: the file-icon fallback chain now ends at the
host's artwork, with the catch-all caveat spelled out; §12 loses its "one
exemption" paragraph entirely — the plugin draws no color of its own any
more (file icons are host pixels, tab glyphs ride tokens).
- AGENTS.md §5: replaces the icon-theme exemption with the two new rules
(file-icon chain + catch-all hazard, and where the colored tab glyphs live
plus the fact that the native chip glyph is drawn by the plugin inside the
host's title slot).
- README.md / README_EN.md: the v0.19.1 entry gains the icon section
(#611 / #531 / #594) with the dataset deletion and the new public API.
Issue #611 asked for file-type icons like the official explorer's, and #429
built a colored theme for them. DSH 0.1.5-rc.2 makes most of that work
unnecessary: `@deepseek-ai/dsh-client-ui-primitives` now exports
`FileTypeIcon` / `CodeFileIcon` with the host's own 48-type full-color code
artwork plus category-colored sheet glyphs (and its classifier behind them).
So the plugin renders the host's icons instead of shipping a color table, and
color becomes the only behaviour rather than an opt-in theme.
File icons (src/client/file-icons.tsx)
- `builtinFileIcon(path, size)` → `<FileTypeIcon path size />`; folders use the
host's folder category. The plugin's own per-extension VSCodicon map is gone.
- The public `registerFileIcon` API from #531 is unchanged and still outranks
the built-ins, so an external plugin can take over any row. One semantic
consequence, now documented and tested: because the host classifier covers
every path, a registered catch-all (`exts: []`) claims rows it used to lose
to the built-in map. An unregistered catch-all (the old icon theme's shape)
is unaffected.
- Nothing is lazy any more: the artwork lives in a platform module the client
already holds, so `lib/client-file-icons.js` and its 563-entry dataset (255
kB) are deleted outright — the core bundle grew by 10 kB (0.85 → 0.86 MB).
- `src/client/file-icon-theme.ts`, the `fileIconTheme` pref (prefs-shared /
config / client prefs), the settings-page select row and the six
`settingsFileIconTheme*` keys in all 20 dictionaries are removed with it.
Tab glyphs (src/client/builtins/tab-icons.tsx)
- Every built-in tab type now declares a colored glyph: files (the host's
folder artwork), changes/diff (commit), tasks (checklist), side chat
(discussion), terminal (shell), browser (globe).
- The color comes from a `--dsw-alias-*` token through a wrapper class, never
from a literal — the skin contract (§12) holds and `tests/theme.spec.ts`
enforces both halves (no literals in the module, every color declaration in
the stylesheet resolves to a token).
Native right Sidebar chips (src/client/native/tab-adapter.tsx)
- The host's tab definition has no icon field, but the
`sidebar.right.pane.tab.title` slot IS the chip's content, so the plugin
draws the glyph itself: an editor tab with a path shows that file's icon,
every other tab shows its descriptor's icon — the same `descriptor.icon` the
workbench strip and the guide capsules already render, so the three cannot
drift. The glyph is `aria-hidden`, which keeps the chip's accessible name
exactly the title the mount lane matches on.
Gates: typecheck / lint / check:consumer-types green; pnpm test 127 files /
1342 passed / 9 skipped (3 new chip cases, 1 rewritten built-in case).
Brings in the theme plumbing around #531's API — the `fileIconTheme` pref
thread, the settings row, the 20 dictionaries' keys and the theme loader's
test — so the working tree is a complete, green starting point before the
colored implementation is replaced.
Conflicts (three; resolved by taking this line's side where it had moved on):
- src/client/service.ts: the import block keeps `baseName, extOf` (the
`isNarrowWidth` import the theme branch needed belongs to its own
fresh-session seeding, which main has since rewritten) and the feature-list
doc comment keeps main's "v0.19.0 REMOVED 'floatWindows'" note while
adopting the sharper `fileIcons` wording (matched by exts / names /
folderNames).
- tests/plugin-shape.spec.ts and tests/prefs.spec.ts: main DELETED the store
seeding tests these files used to hold and rewrote the schema assertions
(the `SIDEBAR_PREFS_DEFAULTS` destructuring), so this line's side wins —
the theme branch's re-added blocks describe behaviour main no longer has.
Next commit removes `fileIconTheme` again along with the 563-entry dataset and
its lazy chunk: DSH 0.1.5-rc.2 exports the official `FileTypeIcon` artwork, so
the plugin renders the host's icons instead of shipping its own color table.
Brings in the plugin-side file-icon feature (issue #611): the public
`registerFileIcon` API plus the resolver chain the tree, the editor tab and
the external-plugin surface all read.
Conflicts (three, all comment/list unions — resolved by union, verified green):
- src/client/service.ts: main's "v0.19.0 REMOVED 'floatWindows'" note stays
(the capability is gone and must not come back); the feature list gains
'fileIcons'.
- src/client/Sidebar.tsx: one comment above `tabIconOf`; both sides' wording
is kept (the editor-with-path special case and the descriptor fallback).
- docs/external-plugin-guide.md: the `features` list comment keeps main's
"additive only, the one exception being floatWindows" wording plus the new
'fileIcons' entry.
Notes on what this merge does NOT bring in: #594 (feat/file-icon-theme) is
stacked on this branch and lands next, but its colored-theme implementation
(563-entry react-icons dataset in a 255 kB lazy chunk plus a `fileIconTheme`
switch) is being replaced — DSH 0.1.5-rc.2 exports the official
`FileTypeIcon`/`CodeFileIcon` artwork from ui-primitives, so the plugin does
not need to ship its own color dataset.
Gates on the merge result: pnpm typecheck clean, pnpm test 127 files /
1331 passed / 9 skipped.
ci-windows is green twice on 5451f5c — the PR-triggered run 34561189320 and a
follow-up workflow_dispatch run 34561457067, both 126 files / 1318 passed /
3 skipped with zero `Unhandled Errors` and zero `Worker exited unexpectedly`
(the window that motivated this work saw two of the latter). plugin-mount is
green twice as well: `added 521 packages in 24s` with no ERESOLVE lines
against 3062 in the historical OOM run, mount smoke 7 passed, aggregate lane
passed.
Also records the falsification this PR went through — the first cut still
failed on real CI in two places (the third 5000 ms default victim,
tests/git.spec.ts:85 at 9607 ms, and `--legacy-peer-deps` breaking the CLI
install with ERR_MODULE_NOT_FOUND) — and states plainly that two green runs
do not prove the worker-death root cause, only that it stopped reproducing
once concurrency was bounded and the timeout budgets were corrected.
The first run of this PR against real Windows and real npm found two things
the local macOS pass could not:
1. ci-windows lost a THIRD file to vitest's 5000 ms default —
`tests/git.spec.ts:85` ("caps status entries at the truncation limit")
took 9607 ms building a pathological untracked set with real git calls.
Three different files (git / powershell / agent-pty), one root cause, so
per-file timeouts were whack-a-mole: vitest.config.ts now sets a global
`testTimeout: 15_000`. The two heaviest suites keep their own 30 s budgets
and a genuinely hung case still fails.
2. `--legacy-peer-deps` made the mount lane's CLI install broken instead of
robust: it skips exactly the peers a global install has to supply, and
`@deepseek-ai/cordis-plugin-group` — required at boot by
`@deepseek-ai/dsh-app-boot` — is a peer, not a dependency, so the CLI died
with ERR_MODULE_NOT_FOUND (`Cannot find package
'@deepseek-ai/cordis-plugin-group'`) before the smoke could start. The
flag is removed; the pin to a fully-published rc.2 (no ETARGET) plus the
4 GB heap (no resolver OOM) is the whole fix.
Verified locally: a plain `npm install -g @deepseek-ai/dsh@0.1.5-rc.2` into a
scratch prefix (with NODE_OPTIONS=--max-old-space-size=4096) resolves the peer
(`dsh/node_modules/@deepseek-ai/cordis-plugin-group` present), that CLI reports
0.1.5-rc.2, and `DSH_CMD` pointed at it runs the mount lane green — 7 passed.
`pnpm test` stays green with the new timeout: 126 files / 1312 passed / 9 skipped.
Docs (plan §C, AGENTS.md §2, both READMEs' v0.19.1 entries) record the rejected
middle step and why, so nobody re-adds it.
- docs/plans/2026-09-10-dsh-0.1.5-rc.2-adaptation.md: the adaptation plan —
the upstream rc.1 -> rc.2 delta per affected area, why there is no
plugin-side code change, and the CI failure taxonomy (A real Windows
timeouts, B the two silent worker deaths, C the mount lane's npm
ETARGET/OOM) with the evidence and the fix for each.
- AGENTS.md §2/§3: CI pins rc.2, the mount lane's npm flags and their reason
(floating transitives + staged prerelease publishing), the Windows lane's
bounded pool and why, and the primitives-dependencies note extended to rc.2.
- README.md / README_EN.md: support badge (v0.19.1, verified on rc.2), the
install section's stable-release note (rc.1 hosts need no upgrade — the peer
floor is unchanged) and a v0.19.1 changelog entry covering the two CI fixes.
- docs/external-plugin-guide.md: baseline line -> v0.19.1 / DSH 0.1.5-rc.1+,
verified on rc.2.
- Comment-only: `DSH 0.1.5-rc.1` -> `0.1.5-rc.1+` where the note describes a
behaviour that arrived in rc.1 and is unchanged in rc.2 (native guide
description rendering, in src/client/native/index.ts, src/client/service.ts
and the three specs that assert it).
Two independent, evidence-backed defects in the 2026-09-09/10 CI window
(60 completed runs: 26 success / 17 failure; ci-windows|Test red 8 times,
plugin-mount|Install dsh CLI red 4 times).
1. Windows: six of the eight red ci-windows runs were genuine 5000 ms
vitest timeouts in specs that really start a process —
`tests/agent-pty.spec.ts` (`:71` / `:106`; a PowerShell + ConPTY pair per
terminal) and `tests/install-powershell.spec.ts` (`:105`; a cold
`powershell.exe` start measured 12.1 s). vitest.config.ts sets no
testTimeout, so both suites ran on the 5000 ms default, and
`waitForTranscript`'s own poll budget was *also* 5000 ms — the inner wait
consumed the whole outer budget, which is a structurally guaranteed
timeout, not a flake. Both suites now declare a 30 s budget (describe-level
options, verified working on vitest 4) and the inner poll drops to 15 s so
it stays strictly below the outer bound.
2. Windows: `ci-windows`'s Test step runs `pnpm test:windows`
(`vitest run --maxWorkers=2`, the script added with the baseline commit)
instead of `pnpm test`. Five specs spawn real processes, node-pty's ConPTY
helper and a cold powershell.exe are both console-bound, and an unbounded
fork pool on a 2-core runner is the amplifier behind both the timeouts
above and the two silent worker deaths (`Worker exited unexpectedly` with
0 FAIL and every file reported passing — one of them on a commit whose
sibling run was green). Local `pnpm test` semantics are unchanged; only the
Windows lane is bounded.
The worker-death mode itself is NOT proven fixed here: it does not
reproduce on macOS and the two occurrences have no same-commit rerun. This
is the evidence-backed part; the real Windows result decides whether more
is needed, and retries are deliberately not used to paper over it.
3. plugin-mount: `npm install -g @deepseek-ai/dsh@<ver>` never really pinned
anything — the pin's transitives are floating `^` ranges, so while upstream
publishes a prerelease in stages (rc.2 went out package by package between
14:43 and 14:57 UTC on 09-10) npm resolved a mixed rc.1/rc.2 peer graph:
3062 ERESOLVE lines then `Ineffective mark-compacts near heap limit`
(exit 134), or a hard ETARGET on a sibling that appeared 5.5 minutes (resp.
25 seconds) later. The same mechanism hit the alpha line on 09-09. The lane
now pins an already-complete rc.2 and passes `--legacy-peer-deps` plus
`NODE_OPTIONS=--max-old-space-size=4096` to decouple the install from the
upstream publish window; a mismatch would not be silent because the mount
smoke in the same lane boots the real shell.
The stale comment claiming rc.1 is both `latest` and `next` is corrected —
it documented a reality that had already changed.
The pinned baseline moves to DSH 0.1.5-rc.2 (npm `next`; `latest` is still
rc.1) while the plugin's peer floor stays ^0.1.5-rc.1, so rc.1 hosts need no
DSH upgrade to run this version. Nothing in the rc.1 -> rc.2 delta touches
this plugin: of 300 changed upstream files, the overwhelming majority are
single-line `version` bumps in per-package package.json files, and the only
real code edits are the message-feedback dialog, deliverables card CSS and
the CodeFileIcon SVG artwork split (`code-file-icon-artwork.ts`). There are
zero changes under packages/api|host|session|agent and zero type-surface
changes beyond one line in message-feedback/types.ts, so the adaptation is
the pin itself — devDependencies, the CI mount lane and
SIDEBAR_SERVICE_VERSION — with no plugin-side code change and no runtime
compatibility layer.
- package.json: devDependency pins 0.1.5-rc.1 -> 0.1.5-rc.2 (including
dsh-client-locale, which is still published on the DSH tuple); peers keep
the ^0.1.5-rc.1 floor; version -> 0.19.1
- dsh.plugin.json: version -> 0.19.1; engines.dsh keeps >=0.1.5-rc.1 (same
supported range as the peer floor — the two must not fork)
- pnpm-lock.yaml: lockfile realigned to rc.2
- src/client/service.ts: SIDEBAR_SERVICE_VERSION -> 0.19.1 (tests/service.spec.ts
asserts it equals package.json's version)
Verified locally on macOS arm64 against the rc.2 tree: pnpm install clean,
`pnpm peers check` reports no peer dependency issues, typecheck / lint /
check:consumer-types green, `pnpm test` 126 files / 1312 passed / 9 skipped.
The real-mount smoke (scripts/e2e-mount.sh with DSH_CMD pinned to rc.2) and
the aggregate double-mount lane both pass — evidence recorded in
docs/plans/2026-09-10-dsh-0.1.5-rc.2-adaptation.md.
Conflict: src/client/sidebar/use-host-feeds.ts
- ours: import { mirrorAgentWaits, ... } from '../state.ts'
- theirs: same line + new import { isNarrowWidth } from '../breakpoints.ts'
Resolution keeps both imports; the two sides' semantic changes are in
disjoint regions (ours: tab-disabled wait mirroring; theirs:
activateTasksPage native-landing) and both survive intact.
The v0.19.0 regression, its root cause in 223b254, the four decisions
(native landing, narrow-viewport park, jump-back always expands, bottom
workbench keeps its own flows), the change list, and the evidence — including
the environment trap that the PATH `dsh` on this machine is 0.1.2-rc.1 and
cannot register the `file:` tarball into a scratch profile.
The two auto-open switches (a new subagent, a new background job) and the
topology jump-back opened the Tasks page with `target: 'bottom'` — the
plugin's own bottom workbench, i.e. the bottom bar. The right column IS DSH's
native Sidebar since v0.19.0 and every other open in this plugin already lands
there, so `service.ts`'s native branch was bypassed and the switches did NOT
do what their copy promises (README feature table + `settingsSubagentDesc` /
`settingsJobsDesc` in all 20 dictionaries: "wide viewports also expand the
sidebar, while narrow full-screen drawers are not forced open").
- use-host-feeds: one `activateTasksPage(ctx, sessionId, { background })`
carries all three triggers and opens the Tasks page at the default (native)
landing, so the host expands the column in the same step.
- Narrow viewports keep that promise: below 768px the host draws the column
FULLSCREEN (`autoFullscreen = viewportWidth < 768`, `position: fixed;
inset: 0`) and expands it on every open with no way to suppress it, so a
BACKGROUND activation parks the tab — reads `ctx.sidebarRight.isExpanded()`
first and puts the column back to collapsed in the same React batch (only
for the mounted session, which is what that face acts on, and only when the
user had it collapsed). The explicit jump-back is a user gesture and always
takes the host's expansion.
- The bottom workbench keeps its own flows on `target: 'bottom'` (its `+`
menu, the first-expansion auto-terminal); `OpenTabSeed.target` is unchanged.
- tests/sidebar-auto-activation.spec.tsx: asserts the native surface receives
`openTab { kind: 'subagent', revealIfOpened: true }`, that the workbench
stays closed and gains no tab, the park counts per width, the resize-before
-fire read, and the jump-back's no-park. All 10 cases fail against the
unfixed module.
Root cause: 223b254 (retire the plugin's own right panel, v0.19.0-alpha.0)
rewrote these three landings from the plugin's right pane to the bottom one.
A GFM IMPORTANT alert under the title states that the right column is
DSH's own sidebar since v0.19.0 (tab types/bodies via ctx.sidebarRightTabs
/ ctx.sidebarRight, file opens via ctx.sidebarRight.openResource, no
self-drawn right panel), and that the bottom workbench plus the
ctx.betterSidebar service are unchanged.
Baseline moves to DSH 0.1.5-rc.1 — the 0.1.5 line's first release
candidate, and the npm `latest` dist-tag now: peer floor ^0.1.5-rc.1,
devDependency pins, the CI mount-lane pin and dsh.plugin.json engines
all follow. 0.1.5-alpha.2 users stay on v0.19.0-alpha.1.
The upstream delta from alpha.2 is small: 373 changed files, mostly
version bumps, sidebar preview polish and test snapshots. Exactly two
changes touch this plugin, and only one needs work:
- `SidebarRightGuideEntry.description` is back (optional). The native
guide renders it only while it lists at most 4 entries; a longer list
drops every description. The plugin restores `TabDescriptor.description`
and the six built-in `guideDesc*` lines (20 dictionaries) verbatim from
0b6ac5d^, but deliberately does NOT restore the old generic
`nativeGuideDesc` fallback: the host has no fallback of its own, so a
descriptor that declares none now ships no `description` field at all
and renders as a clean title-only capsule.
Consequence worth knowing: the plugin contributes six guide entries, so
the default composition is over the 4-entry limit and shows titles only.
The mount lane proves the restored field end to end by shrinking the
enabled set to three types through the plugin's own settings route
(scratch profile only) and requiring the Files capsule to grow its line.
- The built-in `files` type declares a guide description again and uses a
coloured folder glyph; the plugin owns that kind, so nothing to do.
Verified unchanged from alpha.2 (so nobody re-checks them): the global
main-panel model, the file address grammar (util/workspace-path changed
only its package.json), the native tab-body host contract (.paneBody is
still a block scroller with a definite height), the core/agent/session/
subagent host APIs and the ui-primitives export surface.
Restore caveat fixed in the lane: the settings route merges patches
key-wise, so undoing a temporary `tabsEnabled` change by posting the
original (empty) map leaves the disabled keys behind — the e2e restores
every key it touched explicitly.
Baseline moves to DSH 0.1.5-alpha.2 only (peer floor ^0.1.5-alpha.2,
CI pin, manifest engines); alpha.1 users stay on v0.19.0-alpha.0.
Host-contract changes handled:
- the native guide entry lost its `description` field (entries are
icon+title capsules now): `TabDescriptor.description` and the six
`guideDesc*` keys plus the `nativeGuideDesc` fallback are removed.
- the file address grammar changed: `fileAddressFor` always returns a
session-scoped address (absolute paths keep their leading `/`),
`parseFileAddress` is prefix-based and strips `?`/`#`. The plugin's
purity-gated mirror follows.
- global main panels replaced the `conversation` root slot with the
keyed `main` slot (`main.conversation`): the bottom workbench's
center-column locator now accepts both keys and skips
`display: contents` slot hosts.
Fixes a pre-existing fill bug the alpha.2 probe made obvious: the native
tab body host is a block scroller with a definite height, so tab roots
that only declared `flex: 1` collapsed to content height and the side
chat composer drifted off the pane bottom. The native adapter now wraps
every tab body in a `height: 100%` column flex host.
Also promotes the dependencies `dsh-client-ui-primitives@0.1.5-alpha.2`
dropped from its manifest (anser / shiki / mdast-util-* / micromark-* /
katex / @shikijs/langs) and the newly unmet `dsh-session-persistence`
peer into devDependencies.
The native new-tab list rendered one generic line ("opens in the DSH
sidebar") under every plugin entry, so six plugin rows read identically.
`TabDescriptor.description` now carries the real purpose (string or
locale-following thunk; absent falls back to the generic line), and the
six visible builtins declare theirs across all 20 dictionaries.
- service.ts: `TabDescriptor.description` + docs (guide §4.1, §0 row).
- native/: the guide entry's description follows the descriptor; the
`files` takeover reuses the editor's line.
- builtins: files / changes / tasks / side chat / terminal / browser.
- tests: builtins assert every visible type declares a distinct line;
the lifecycle test asserts descriptor lines (and the takeover reuse).
DSH 0.1.5 owns the right column (its native Sidebar hosts every tab type
this plugin registers), so the plugin's own right panel, its width drag /
new-session seed prefs, and the free-window feature are gone. The bottom
workbench is the only plugin-owned surface left, and its expand/collapse
control is registered into DSH's session-header utilities list slot (the
header's corner seat belongs to the native sidebar's own control).
- state: one `bottomSplits` tree; `makeDefaultState()` takes no arguments;
`toggleBottomPanel` / `openTabInBottomPane` are the only landing
reducers; `setBottomHeight` and `sanitizeState` share the
`CONVERSATION_MIN` cap (a persisted tall height no longer snaps on the
first drag).
- service: every landing in the workbench (creation or focus) expands it;
`SIDEBAR_FEATURES` drops `'floatWindows'`; the open/close/activate tab
pools cover the single tree.
- shell: `Sidebar.tsx` renders only the bottom workbench; the toggle lives
in `sidebar/bottom-toggle.tsx`; layout-push pushes height only (no width,
no `--dsh-sidebar-width`).
- prefs: `openByDefault` / `defaultWidthPercent` / `changesDiffFloat`
removed from the schema, defaults, client parser, settings page, and all
20 dictionaries; the retired keys in stored documents are ignored.
- tests: free-window specs deleted, panel/float assertions dropped,
remaining suites adapted (124 files / 1287 tests); the mount lane asserts
the header toggle and sweeps the native sidebar's guide page.
- docs: README / README_EN / guide §0,§11 / AGENTS test map.
The guide renders `entry.icon`, and the `files` kind takeover registered
without one — so after the editor type stopped contributing its own
duplicate row (b56ceec), the single "Files" row was the only entry in the
new-tab list with a blank icon slot. The takeover now carries the editor
descriptor's icon (the takeover IS that descriptor's page).
Extracted `guideIconOf` so both registration sites build the icon field
the same way; the lifecycle test asserts the takeover's guide entry has
an icon.
The editor type's page identity IS the `files` kind takeover (same
explorer, same title), so the guide/new-tab list showed two identical
"Files" entries — observed on a real profile after the takeover landed.
The editor type now contributes no guide entry of its own; it stays
registered as the file RESOURCE viewer. Covered by the registration
lifecycle test (editor: no guide, files takeover: guide).
The editor type serves both the files PAGE and every file RESOURCE; its
native `title` callback ignored the address, so every opened file showed
up in the strip as "Files" — indistinguishable tabs. Verified on a real
profile: after opening `AGENTS.md` from the tree and a chat file link,
the strip read ["文件", "文件", "文件"].
`title(address)` now returns the file name for a file address and keeps
the descriptor title for a page address (`sidebar://editor`). Covered by
the registration-lifecycle test in tests/native-surface.spec.ts.
Menghuan1918