docs: Update RAI Planner docs for Phase 1 preflight, phaseGates, and template-aware resume

[pratik wayase (PratikWayase)]

Description

Updates the published RAI Planner documentation to align with the recent code changes in .github/agents/rai-planning/rai-planner.agent.md and .github/instructions/rai-planning/rai-identity.instructions.md (Commit f8764b1).

Specifically, this PR:

• Adds the new preflight, noticeLog, and phaseGates fields to the state management table in agent-overview.md.
• Updates the Session Resume protocol in agent-overview.md to include template revalidation, assessmentContentFile checks, and securityPlanRef path normalization.
• Updates the Post-Summarization Recovery protocol in agent-overview.md from 6 steps to 7 steps, inserting the preflight validation contract.
• Updates the "How It Works" sections for all three entry modes in entry-modes.md to show that pointers/output preferences are resolved first, followed by the shared Phase 1 preflight.
• Adds the ordered 4-step Phase 1 preflight sequence and stable-ID/evidence-gap handling to phase-reference.md.
• Updates ms.date frontmatter for all three modified files.

Related Issue(s)

Fixes #2865

Type of Change

Select all that apply:

Code & Documentation:

• Documentation update

Infrastructure & Configuration:

• GitHub Actions workflow
• Linting configuration (markdown, PowerShell, etc.)
• Security configuration
• DevContainer configuration
• Dependency update

AI Artifacts:

• Reviewed contribution with hve-builder and addressed all actionable findings
• Copilot instructions (.github/instructions/*.instructions.md)
• Copilot prompt (.github/prompts/*.prompt.md)
• Copilot agent (.github/agents/*.agent.md)
• Copilot skill (.github/skills/*/SKILL.md)
• Copilot hook (.github/hooks/*/*.json)
• Eval spec added/updated for changed AI artifacts (evals/)

Other:

• Script/automation (.ps1, .sh, .py)
• Other (please describe):

Testing

Ran local validation scripts to ensure compliance with repository standards:

• npm run lint:md -> 0 errors
• npm run docs:generate -> Unchanged: 251 files
• npm run format:tables -> Formatted modified files successfully
• npm run lint:md-links -> No new broken links introduced (pre-existing OWASP 404s noted in unrelated files)

Checklist

Required Checks

• Documentation is updated (if applicable)
• Files follow existing naming conventions
• Changes are backwards compatible (if applicable)
• Tests added for new functionality (if applicable)

AI Artifact Contributions

N/A

Required Local Checks

The following local-safe validation commands must pass before merging:

• Local validation aggregate: npm run validate:local
• Documentation validation (if docs changed): npm run validate:docs
• Spell checking: npm run spell-check
• Link validation: npm run lint:md-links

Security Considerations

• This PR does not contain any sensitive or NDA information
• Any new dependencies have been reviewed for security issues
• Security-related scripts follow the principle of least privilege

[Codecov Comments Bot (codecov-commenter)]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.00%. Comparing base (3e29a0b) to head (8ef4863).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2888   +/-   ##
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  Coverage   83.00%   83.00%           
=======================================
  Files         185      185           
  Lines       34924    34924           
  Branches      228      228           
=======================================
  Hits        28989    28989           
  Misses       5861     5861           
  Partials       74       74           

Flag	Coverage Δ
docusaurus	90.60% <ø> (ø)
pester	83.41% <ø> (ø)

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