chore(sync): re-base the fork onto upstream dsh-better-sidebar v0.19.1

The fork was pinned at upstream v0.18.0. That is the entire reason the window
ran TWO sidebars and TWO near-identical panel toggles: DSH 2.0.10 ships its own
right sidebar (@deepseek-ai/dsh-client-ui-sidebar-right), and upstream only
adopted it in v0.19.0-alpha.1 — which arrived after our fork point. v0.19.1 is
also the one upstream line whose support range actually matches our host
(engines.dsh >=0.1.5-rc.1, 14 DSH peers ^0.1.5-rc.1, host = 0.1.5-rc.2), so it
is the only tag the host's startup precheck accepts.

What upstream v0.18.0 → v0.19.1 brings
- src/client/native/{index,surface,tab-adapter}.tsx: every tab the plugin can
  draw becomes an OFFICIAL native tab type + body, and an external plugin's
  descriptor registered later gets its native type too. This is what retires
  the fork's own right panel — and with it the duplicate toggle cluster
  (`toggleCluster` is gone from v0.19.1).
- native tab-chip icons via the `sidebar.right.pane.tab.title` seat, coloured
  built-in tab icons, file/folder glyphs from DSH's own `FileTypeIcon`.
- guide descriptions (DSH renders them while the guide lists <= 4 entries),
  tab bodies that fill the panel, and the 0.1.5-rc.2 adaptation work we were
  carrying by hand (peer/devDep pinning, primitives' transitive devDeps).

How the sync was done
Rebuilt the tree from the v0.19.1 tag rather than resolving 53 conflicted
files: our v0.18.0 delta was measured first and is only (a) one mechanical
rename `dsh-better-sidebar` -> `dsh-apes-sidebar` and (b) ten real edits. So:
tag tree + rename (scoped: code/config/scripts/tests/README, while the 46
historical docs/plans records and switch.sh's upstream package name stay
untouched) + re-applied deltas + our apes module.

Fork deltas re-applied on the new base
- src/client/apes/ (icons / locales / tabs): the three apes:* information-layer
  tabs (agents / apps / profile), registered through the same BetterSidebarService
  as the builtins — which is exactly why they now ride upstream's native adapter
  into the official sidebar for free.
- identity: package.json (name/version 1.2.0/description/forkedFrom), dsh.plugin.json
  (id/version), SIDEBAR_SERVICE_VERSION 1.2.0, README fork notice,
  docs/external-plugin-guide.md.
- scripts/switch.sh + the pnpm switch* scripts (apes <-> upstream two-line switch).
- tests/apes-tabs.spec.ts (unescaped: it starts from the v0.19.1 base).

Dropped
- the Phase A native-registration spike (`apes/native-tabs.tsx` + its spec): it
  re-derived by hand exactly what upstream's native layer already does — the
  hand-written bridge is dead weight now, and v0.19.1's own e2e/jsdom lanes
  cover the same seat contract far better.
- the unused apesProfileGuideDesc key and the two package.json.bak.* backups.

Verified on the new base: typecheck clean; build clean; 1351 passed / 9 skipped
(128 files), up from 1255 on the old base.

src/client/locales-id.ts

@@ -401,7 +401,7 @@ export const id: Record<string, string> = {
   addPluginsViewerCardDesc: 'Daftarkan pratinjau tipe berkas',
   addPluginsTabDesc: 'Halaman sidebar (tab) dapat diperluas oleh plugin. Plugin mendaftar melalui layanan ctx.betterSidebar; klik Install menyalin perintah instalasi — tempel ke terminal tempat profil DSH Anda berada dan jalankan.',
   addPluginsViewerDesc: 'Pratinjau berkas dapat diperluas oleh plugin. Plugin mendaftar melalui layanan ctx.betterSidebar; klik Install menyalin perintah instalasi — tempel ke terminal tempat profil DSH Anda berada dan jalankan.',
-  addPluginsBrowseMore: 'Jelajahi lebih banyak plugin di GitHub (topic: dsh-better-sidebar)',
+  addPluginsBrowseMore: 'Jelajahi lebih banyak plugin di GitHub (topic: dsh-apes-sidebar)',
   addPluginsSearch: 'Cari berdasarkan nama / deskripsi plugin…',
   addPluginsNoMatch: 'Tidak ada plugin yang cocok',
   addPluginsRecommended: 'Plugin yang direkomendasikan',
@@ -414,7 +414,7 @@ export const id: Record<string, string> = {
   pluginGithubWorkbenchDesc: 'Tab GitHub Workbench: pohon repo remote + Issues / Pull requests / Actions dengan dukungan tulis penuh — buat Issue/PR, komentar, edit, tutup/buka ulang, merge squash·merge·rebase (konfirmasi kuat), jalankan ulang/batalkan CI; pengalih repo otomatis mencantumkan repo yang dapat diakses dan mencari repo publik; tanpa better-sidebar otomatis beralih ke panel kanan mandiri',
   pluginMdExportDesc: 'Menambahkan tombol "Ekspor" ke bilah alat Markdown di better-sidebar: merender .md saat ini menjadi HTML mandiri dalam satu klik (tabel/blok kode/diagram Mermaid inline, tata letak mengikuti tema pratinjau) dan menyimpannya di folder yang sama, atau mengekspor ke PDF lewat dialog cetak',
   pluginCodeNavDesc: 'Navigasi pratinjau kode: mengenali bahasa dari jenis berkas dan menyorot sintaks, kerangka simbol (filter kelas/metode/variabel + lompat sekali klik), serta pencarian dalam berkas (sorot semua kecocokan, sebelum/berikutnya, peka huruf besar-kecil) — mengambil alih pratinjau berkas kode di editor better-sidebar',
-  pluginSuhuangScrollDesc: 'Menghubungkan Suhuang Scroll Runtime lokal ke pengaturan DSH dan better-sidebar untuk konfigurasi model, uji koneksi, dan kontrol penilaian berkelanjutan; memerlukan Suhuang Scroll Runtime dan dsh-better-sidebar',
+  pluginSuhuangScrollDesc: 'Menghubungkan Suhuang Scroll Runtime lokal ke pengaturan DSH dan better-sidebar untuk konfigurasi model, uji koneksi, dan kontrol penilaian berkelanjutan; memerlukan Suhuang Scroll Runtime dan dsh-apes-sidebar',
   pluginBetterOverleafDesc: 'Tab Overleaf untuk better-sidebar: login langsung lewat peramban CDP (mendukung Chromium pihak ketiga), daftar/pergantian proyek, mirror git lokal di <workspace>/overleaf/, sinkronisasi git dua arah dengan fallback API baca-saja, dan pratinjau berkas melalui workbench sidebar',
   pluginGitRemotesDesc: 'Tab Git Remotes: branch/upstream/ahead-behind, fetch (prune opsional), ff-only pull, dan push hanya setelah konfirmasi dalam tab. Tidak menggantikan tab stage/commit Git bawaan, dan tidak menawarkan force-push atau alat auto-push model',
   pluginSentinelDesc: 'Sistem bangun agen berbasis kondisi: sensor berkas/proses/port/http/perintah/webhook membangunkan sesi yang tidur saat kondisi terpicu; mendaftarkan tab "Sentinel" dengan tabel pengawasan server-wide',