[cravex2-reachability] Add documentation for triage rules

[tdruez]

Published at https://dejacode.readthedocs.io/en/latest/reference-vulnerability-triage.html, https://dejacode.readthedocs.io/en/latest/howto-7-vulnerability-triage-configuration.html and https://dejacode.readthedocs.io/en/latest/tutorial-8-vulnerability-triage.html

Issues

• Issue: cravex2-reachability: Create documentation for triage rules #370

Vulnerability Triage Reference Documentation

• New reference pagereference-vulnerability-triage.rst documenting the Triage Engine concept, built-in rules, triage record lifecycle, and configuration
• Built-in rules table covering all seven rules with label, rule type, and description, plus a parameters reference for each configurable rule
• Triage actions table listing all eight recommended actions a ruleset can produce
• Triage record lifecycle explaining the detected, active, and deleted states
• Configuration reference for the Triage Ruleset, Analysis Preset, and Request Template fields
• Evaluation triggers documenting automatic, immediate re-evaluation and the evaluate_triage management command
• REST API documenting the triage recommendations endpoint, full CRUD on rulesets and presets, the ruleset-assignment endpoint, and the vulnerability analysis enrichment fields
• Cross-references added between this chapter and the existing vulnerability management and vulnerability analysis documentation, in both directions where relevant

How-To: Configure Vulnerability Triage

• Admin configuration workflow covering how to create a Triage Ruleset (name, action, precedence) and enable its detection rules
• Analysis Preset setup to auto-apply default analysis values to matched vulnerabilities
• Request Template linking to auto-open a DejaCode Request for each new match
• Assigning rulesets to products through the Manage Triage Rulesets panel
• Managing precedence when multiple assigned rulesets match the same vulnerability

Tutorial: Reviewing Vulnerability Triage Recommendations

• Reading the Recommendation column on the product Vulnerabilities tab: action, ruleset, detection date, and linked request
• Filtering and prioritizing by triage action, risk score, and analysis state
• Recording a vulnerability analysis, including how preset-applied values are pre-filled and marked
• Tracking the linked Request opened automatically for a match
• Automatic re-evaluation: no manual step, results are immediate on the next page reload