Add checkcode details to vuln attempt

[adfoster-r7]

Needed by rapid7/metasploit-framework#21307

Add check code details to the VulnAttempt model, so that these can be shown to the user:

msf > vulns -v

Vulnerabilities
===============
  0. Vuln ID: 10
     Timestamp: 2026-04-15 00:05:25 UTC
     Host: 10.140.113.233
     Name: ElasticSearch Snapshot API Directory Traversal
     References: CVE-2015-5531,PACKETSTORM-132721
     Information: Vulnerability confirmed by check of auxiliary/scanner/http/elasticsearch_traversal.
     Resource: {}
     Service:
     Vuln attempts:
     0. ID: 28
        Vuln ID: 10
        Timestamp: 2026-04-15 00:05:25 UTC
        Exploit: false
        Fail reason: none
        Username: foo
        Module: auxiliary/scanner/http/elasticsearch_traversal
        Session ID: nil
        Loot ID: nil
        Fail Detail: nil
        Check Code: appears
        Check Detail: Successfully created snapshot repositories, suggesting the Snapshot API is vulnerable to CVE-2015-5531.

[Copilot]

Pull request overview

Adds persistence support for Metasploit module check results on vulnerability attempts so downstream consumers (e.g., console/UI) can display both the check outcome and its explanatory message.

Changes:

• Adds check_code (string) and check_detail (text) columns to vuln_attempts.
• Documents the new attributes on Mdm::VulnAttempt.
• Updates the dummy app’s structure.sql to reflect the schema change.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
spec/dummy/db/structure.sql	Updates dummy DB schema dump to include check_code/check_detail (but also introduces \\restrict/\\unrestrict directives).
db/migrate/20260411000000_add_check_code_to_vuln_attempts.rb	Migration adding the two new columns to vuln_attempts.
app/models/mdm/vuln_attempt.rb	YARD documentation for the new check_code and check_detail fields.

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

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