[Fix] MCP: install curl for container healthcheck

[CREDO23]

The MCP image is python:3.12-slim, which ships without curl/wget, so Coolify's default container healthcheck against /health fails with curl: not found. Install curl (matching the backend image) so the probe works out of the box.

Tested: image builds; inside the container curl http://localhost:8080/health → 200.

High-level PR Summary

This PR fixes a container healthcheck issue in the MCP service by installing curl in the Docker image. The base python:3.12-slim image doesn't include curl or wget, which causes Coolify's default healthcheck against the /health endpoint to fail. The fix adds curl to the image using apt-get, following best practices by cleaning up the apt cache to keep the image size minimal.

⏱️ Estimated Review Time: 5-15 minutes

💡 Review Order Suggestion

Order	File Path
1	surfsense_mcp/Dockerfile

Summary by CodeRabbit

• Bug Fixes
  • Improved container health checks so the service can be reliably probed for a healthy state.
  • Reduced image size slightly by cleaning up package lists after installation.

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: d61038c8-a944-4f05-9486-be4494d66a0f

📥 Commits

Reviewing files that changed from the base of the PR and between 97f3631 and 839618e.

📒 Files selected for processing (1)

• surfsense_mcp/Dockerfile

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📝 Walkthrough

Walkthrough

The Dockerfile for surfsense_mcp adds a curl installation step in the deps stage via apt-get, followed by cleanup of apt package lists, to support a container healthcheck probe.

Changes

Dockerfile Healthcheck Dependency

Layer / File(s)	Summary
Install curl for healthcheck surfsense_mcp/Dockerfile	Adds a RUN step in the deps stage installing curl via apt-get and removing apt package lists to support the container healthcheck probe.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and accurately summarizes the change to install curl for the MCP container healthcheck.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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