feat(sync): re-base the fork onto upstream dsh-better-sidebar v0.24.1 (fork 1.3.0)

Branch for hardware verification on a host that meets v0.24.1's peer range.

Base: upstream `dsh-better-sidebar` v0.24.1 (tag v0.24.1 = a2751cf), MIT.
Measured delta carried over from the v0.19.1 line: 78 rename-only files, 11 real
edits, 10 additions. Ported with the same measurement method as the v0.19.1
re-base: build a normalized base (upstream tree + the fork rename, excluding
README.md / package.json / docs/plans/* which deliberately keep the upstream
name), extract the delta against it, then three-way apply onto the renamed
v0.24.1 tree (`git apply -3`). 13 conflicts resolved by hand.

Identity:
- version 1.3.0, SIDEBAR_SERVICE_VERSION 1.3.0 (package.json ↔ service.ts pair
  is asserted by tests/service.spec.ts), forkedFrom -> v0.24.1/a2751cf.
- package.json keeps the union of both sides' metadata: upstream's new
  `zustand` + `icon`/`locale` files entries, plus the fork's `scripts/switch.sh`
  entry and its `forkedFrom` block.
- README.md takes upstream v0.24.1 wholesale (its own v0.24.1 changelog and all
  16 sections) and keeps the fork's two deltas: the fork-notice block at the top
  (now documenting the 0.2.0-rc.1+ requirement) and the fork package name.
- peerDependencies stay upstream's `^0.2.0-rc.1` — this line does NOT load on
  DSH 0.1.x: the host's semver pre-check rejects a caret range across a minor
  and silently disables the row (no error, no load).

Carried features, all re-verified against the new base:
- apes:* information-layer tabs (src/client/apes/) — the subtree's session feed
  changed shape in 0.1.7 and the port follows the host's own migration notes in
  context-types.ts: the per-session catalog is now
  `projectionsBySession[id].values.subagentCatalog` (a flat entry list) instead
  of 0.1.6's `subagentsByParent` catalog with `entries`/`kind`/`activity`, and
  the removed `list.current` is answered by `props.scope.sessionId`. Rows are
  normalized to { id, label, mode } with activity read from the durable
  summaries, so catalog and byId sources render alike.
- HTML preview delivery through srcdoc (sandbox kept intact).
- Panel host mounted inside the shell's framed content viewport.

Gate: typecheck clean; build clean; 1515 passed / 9 skipped (141 files).

NOT applied to ~/.dsh/profiles/desktop — that profile runs DSH 2.0.10 with
@deepseek-ai/dsh 0.1.5-rc.2, where this line is silently disabled by design.

package.json

@@ -1,7 +1,7 @@
 {
-  "name": "dsh-better-sidebar",
-  "version": "0.24.1",
-  "description": "Better Sidebar for DSH — file tree, editor, changes, tasks and side chat in one column, separate for every conversation. Also exposes a service other plugins use to register sidebar tabs and file viewers.",
+  "name": "dsh-apes-sidebar",
+  "version": "1.3.0",
+  "description": "APE fork of dsh-better-sidebar (base v0.24.1): session-isolated right sidebar — file tree, editor, changes, tasks and side chat — built on the host's native sidebar, plus apes:* information-layer tabs (agents / apps / profile). Forked from omdsh-dev/DSH-better-sidebar under MIT.",
   "type": "module",
   "repository": {
     "type": "git",
@@ -74,7 +74,8 @@
     "README_EN.md",
     "LICENSE",
     "icon.svg",
-    "locale/*.json"
+    "locale/*.json",
+    "scripts/switch.sh"
   ],
   "scripts": {
     "build": "node -e \"require('node:fs').rmSync('lib',{recursive:true,force:true})\" && tsc -p tsconfig.build.json && tsdown",
@@ -89,7 +90,11 @@
     "test:mount:aggregate": "bash scripts/e2e-aggregate-mount.sh",
     "clean": "node -e \"require('node:fs').rmSync('lib',{recursive:true,force:true})\"",
     "check:consumer-types": "bash scripts/check-consumer-types.sh",
-    "lint": "eslint ."
+    "lint": "eslint .",
+    "switch": "bash scripts/switch.sh",
+    "switch:status": "bash scripts/switch.sh --status",
+    "switch:aps": "bash scripts/switch.sh aps",
+    "switch:upstream": "bash scripts/switch.sh upstream"
   },
   "license": "MIT",
   "peerDependencies": {
@@ -227,5 +232,11 @@
     "vitest": "^4.1.8",
     "zustand": "~4.4.7"
   },
-  "icon": "./icon.svg"
+  "icon": "./icon.svg",
+  "forkedFrom": {
+    "name": "dsh-better-sidebar",
+    "version": "0.24.1",
+    "commit": "a2751cf",
+    "url": "https://github.com/omdsh-dev/DSH-better-sidebar"
+  }
 }