fix(c8): sidebar entry unity — DSH Icon*16 + order 40-50

Root cause of the visual split:
1. Icon system mismatch: apes used react-icons (FiCpu/FiGrid/FiUser,
   static 14px ReactNode) while native builtins use DSH's Icon*16
   components (function form, host-controlled size). Two different
   icon libraries → inconsistent visual style.
2. Order 901-903 pushed apes tabs far after native builtins (10-35),
   creating two visually separate groups in the tab strip.

Fix:
- icon: react-icons Fi* → @deepseek-ai/dsh-client-ui-primitives
  Icon*16 (function form, same as builtins):
    agents  → IconAgentPresetOutline16
    apps    → IconGaugeOutline16
    profile → IconUserOutline16
- order: 901/902/903 → 40/45/50 (immediately after native builtins)
- SIDEBAR_SERVICE_VERSION + dsh.plugin.json version → 1.1.0
  (lockstep with package.json, required by manifest tests)

Gate: typecheck ✓ / build ✓ / test 119 files · 1249 passed · 9 skipped · 0 failed ✓

dsh.plugin.json

@@ -1,6 +1,6 @@
 {
   "id": "dsh-external/dsh-apes-sidebar",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "main": "./lib/index.js",
   "description": "VSCode 风格右侧侧边栏：文件资源管理器 / 编辑器 / 终端 / Git / 浏览器，按会话隔离。暴露服务供其他插件注册侧边栏页面和文件预览器",
   "engines": {