docs(openclaw-plugin): add one-click Railway deploy link

[yanekyuk]

Summary

• add a one-click Railway deploy link for indexnetwork/openclaw-railway-template
• keep the plugin README focused on the fixed, deployable template path and the webhook verification check

Summary by CodeRabbit

• Documentation
  • Replaced prior Railway template recommendation with a new recommended Railway template.
  • Documented three Railway-specific behavior fixes: scoped JSON body parsing to setup endpoints, improved health tracking to avoid wrapper HTTP 503 after restarts, and automatic favicon redirect.
  • Added explicit post-deployment verification step to confirm webhook endpoint returns a 401 invalid signature.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 4719c110-3f35-49c1-8242-f1c355deb880

📥 Commits

Reviewing files that changed from the base of the PR and between c16278e and fc52ea2.

📒 Files selected for processing (1)

• packages/openclaw-plugin/README.md

📝 Walkthrough

Walkthrough

README updated to replace a Railway “known gotcha” section with a “Recommended Railway template” pointing to indexnetwork/openclaw-railway-template, describing three Railway-specific fixes and adding an explicit post-deployment webhook verification step.

Changes

Cohort / File(s)

Summary

Railway Deployment Documentation packages/openclaw-plugin/README.md

Replaced prior "known gotcha" content for arjunkomath/openclaw-railway-template with a "Recommended Railway template" pointing to indexnetwork/openclaw-railway-template. Documents three Railway-specific fixes: scoping express.json() to /setup/api; tracking gatewayExternallyHealthy to avoid wrapper HTTP 503 after OpenClaw restarts; redirecting /openclaw/favicon.svg to /favicon.svg. Added post-deployment verification: check https://<your-public-url>/index-network/webhook returns 401 invalid signature.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐇 I hopped through docs to mend the trail,
Swapped an old gotcha for a sturdier sail,
Three little fixes snug in place,
A webhook check to save some chase,
Hooray — deployment hops with grace! 🥕

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	The PR title mentions adding a one-click Railway deploy link, but the actual changes only update README documentation about a recommended template and troubleshooting steps without adding any deploy link.	Either add the actual one-click deploy link to the README or revise the title to accurately reflect that the changes update troubleshooting documentation and recommend a specific Railway template.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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