fix: harden windows native updates

CHANGELOG.md

@@ -35,6 +35,7 @@ Docs: https://docs.openclaw.ai
 - Gateway/session discovery: discover disk-only and retired ACP session stores under custom templated `session.store` roots so ACP reconciliation, session-id/session-label targeting, and run-id fallback keep working after restart. (#44176) thanks @gumadeiras.
 - Plugins/env-scoped roots: fix plugin discovery/load caches and provenance tracking so same-process `HOME`/`OPENCLAW_HOME` changes no longer reuse stale plugin state or misreport `~/...` plugins as untracked. (#44046) thanks @gumadeiras.
 - Models/OpenRouter native ids: canonicalize native OpenRouter model keys across config writes, runtime lookups, fallback management, and `models list --plain`, and migrate legacy duplicated `openrouter/openrouter/...` config entries forward on write.
+- Windows/native update: make package installs use the npm update path instead of the git path, carry portable Git into native Windows updates, and mirror the installer's Windows npm env so `openclaw update` no longer dies early on missing `git` or `node-llama-cpp` download setup.
 - Sandbox/write: preserve pinned mutation-helper payload stdin so sandboxed `write` no longer reports success while creating empty files. (#43876) Thanks @glitch418x.
 - Security/exec approvals: escape invisible Unicode format characters in approval prompts so zero-width command text renders as visible `\u{...}` escapes instead of spoofing the reviewed command. (`GHSA-pcqg-f7rg-xfvv`)(#43687) Thanks @EkiXu and @vincentkoc.
 - Security/exec detection: normalize compatibility Unicode and strip invisible formatting code points before obfuscation checks so zero-width and fullwidth command tricks no longer suppress heuristic detection. (`GHSA-9r3v-37xh-2cf6`)(#44091) Thanks @wooluo and @vincentkoc.