docs: refresh package-manager update references

docs/cli/update.md

@@ -10,7 +10,8 @@ title: "update"
 
 Safely update OpenClaw and switch between stable/beta/dev channels.
 
-If you installed via **npm/pnpm** (global install, no git metadata), updates happen via the package manager flow in [Updating](/install/updating).
+If you installed via **npm/pnpm/bun** (global install, no git metadata),
+updates happen via the package-manager flow in [Updating](/install/updating).
 
 ## Usage
 
@@ -95,7 +96,7 @@ High-level:
 3. Fetches upstream (dev only).
 4. Dev only: preflight lint + TypeScript build in a temp worktree; if the tip fails, walks back up to 10 commits to find the newest clean build.
 5. Rebases onto the selected commit (dev only).
-6. Installs deps (pnpm preferred; npm fallback).
+6. Installs deps (pnpm preferred; npm fallback; bun remains available as a secondary compatibility fallback).
 7. Builds + builds the Control UI.
 8. Runs `openclaw doctor` as the final “safe update” check.
 9. Syncs plugins to the active channel (dev uses bundled extensions; stable/beta uses npm) and updates npm-installed plugins.

docs/install/index.md

@@ -1,5 +1,5 @@
 ---
-summary: "Install OpenClaw — installer script, npm/pnpm, from source, Docker, and more"
+summary: "Install OpenClaw — installer script, npm/pnpm/bun, from source, Docker, and more"
 read_when:
   - You need an install method other than the Getting Started quickstart
   - You want to deploy to a cloud platform

docs/install/updating.md

@@ -40,7 +40,7 @@ curl -fsSL https://openclaw.ai/install.sh | bash
 
 Add `--no-onboard` to skip onboarding. For source installs, pass `--install-method git --no-onboard`.
 
-## Alternative: manual npm or pnpm
+## Alternative: manual npm, pnpm, or bun
 
 ```bash
 npm i -g openclaw@latest
@@ -50,6 +50,10 @@ npm i -g openclaw@latest
 pnpm add -g openclaw@latest
 ```
 
+```bash
+bun add -g openclaw@latest
+```
+
 ## Auto-updater
 
 The auto-updater is off by default. Enable it in `~/.openclaw/openclaw.json`: