fix(cli): sync cli package version with product version to stop false update notice

In CLI Web mode, the frontend displays __APP_VERSION__ injected from the
root package.json at build time (0.26.2), while the server-side getVersion()
reads apps/cli/package.json at runtime (stuck at 0.25.1). This caused
buildWebUpdateCheckResult to compare remote 0.26.2 against local 0.25.1,
permanently reporting a false update notice even when the user was already
on the latest version.

Fix apps/cli/package.json to 0.26.2 to align with the product version.

Also extend set_release_version.sh to keep apps/cli/package.json in sync
with the root package.json on every release, preventing the drift from
recurring. apps/desktop/package.json is intentionally kept at 0.0.0 (the
desktop runtime uses app.getVersion() with __APP_VERSION__ fallback).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "chatlab-cli",
-  "version": "0.25.1",
+  "version": "0.26.2",
   "description": "ChatLab CLI & Service - Chat history analysis tool",
   "type": "module",
   "bin": {