docs: add Related sections to install and help pages

- install/docker.md: link to podman, clawdock, updating, config
- install/node.md: link to overview, updating, getting-started
- install/updating.md: link to overview, doctor, migrating
- help/troubleshooting.md: link to FAQ, gateway/channel/automation troubleshooting, doctor

docs/help/troubleshooting.md

@@ -342,3 +342,11 @@ flowchart TD
 
   </Accordion>
 </AccordionGroup>
+
+## Related
+
+- [FAQ](/help/faq) — frequently asked questions
+- [Gateway Troubleshooting](/gateway/troubleshooting) — gateway-specific issues
+- [Doctor](/gateway/doctor) — automated health checks and repairs
+- [Channel Troubleshooting](/channels/troubleshooting) — channel connectivity issues
+- [Automation Troubleshooting](/automation/troubleshooting) — cron and heartbeat issues

docs/install/docker.md

@@ -394,3 +394,11 @@ scripts/sandbox-setup.sh
 
   </Accordion>
 </AccordionGroup>
+
+## Related
+
+- [Install Overview](/install) — all installation methods
+- [Podman](/install/podman) — Podman alternative to Docker
+- [ClawDock](/install/clawdock) — Docker Compose community setup
+- [Updating](/install/updating) — keeping OpenClaw up to date
+- [Configuration](/gateway/configuration) — gateway configuration after install

docs/install/node.md

@@ -136,3 +136,9 @@ export PATH="$HOME/.npm-global/bin:$PATH"
 ```
 
 Add the `export PATH=...` line to your `~/.bashrc` or `~/.zshrc` to make it permanent.
+
+## Related
+
+- [Install Overview](/install) — all installation methods
+- [Updating](/install/updating) — keeping OpenClaw up to date
+- [Getting Started](/start/getting-started) — first steps after install

docs/install/updating.md

@@ -126,3 +126,9 @@ To return to latest: `git checkout main && git pull`.
 - Run `openclaw doctor` again and read the output carefully.
 - Check: [Troubleshooting](/gateway/troubleshooting)
 - Ask in Discord: [https://discord.gg/clawd](https://discord.gg/clawd)
+
+## Related
+
+- [Install Overview](/install) — all installation methods
+- [Doctor](/gateway/doctor) — health checks after updates
+- [Migrating](/install/migrating) — major version migration guides