Add review context mapping protocols

[Alan-Jowett]

Summary

Adds two reusable PromptKit protocols derived from analysis of the
public Sashiko review guidance. The new components capture Rust clone
review discipline and repo-local standards and design-doc mapping for
review workflows without changing existing templates.

New Components

Type	Name	Path	Description
protocol (analysis)	clone-discipline-rust	protocols/analysis/clone-discipline-rust.md	Rust review protocol for challenging unnecessary or high-cost cloning.
protocol (reasoning)	design-context-mapping	protocols/reasoning/design-context-mapping.md	Pre-review protocol for discovering repo standards and mapping changed modules to relevant design docs.

Design Decisions

• Added standalone optional protocols with applicable_to: [] rather
  than modifying existing templates in this PR.
• Kept the contribution focused on the strongest reusable deltas from
  the Sashiko material: clone review discipline and design-context
  discovery.
• Reused existing review personas, formats, and templates rather than
  introducing a new review template or persona.
• Synthesized the protocol wording for PromptKit conventions instead of
  copying source prompt text verbatim.

Improvement Log

• Follow-up candidate: extend review-pull-request with an optional
  repo standards and design-doc gathering step.
• Follow-up candidate: add explicit design-alignment review language to
  review-pull-request when matching design docs exist.
• Follow-up candidate: add terse, fix-oriented finding guidance to
  review-code and review-pull-request for author-facing reviews.
• Follow-up candidate: explore a review-to-patch workflow or output
  mode that emits unified diffs for actionable findings.

Acknowledgment

This PR was informed by public Sashiko materials:

• skills/review-pr/SKILL.md, introduced by derekbarbosa and later
  updated by Sven Van Asbroeck (@TheSven73)
• GEMINI.md
• skills/review-pr/references/clone-discipline.md
• designs/* review design documents

The source repository is licensed under Apache-2.0. Author notification
is still pending.

Checklist

• All files have SPDX license headers
• YAML frontmatter is valid and complete
• Component names match file names (kebab-case)
• manifest.yaml updated with all new components
• No vague instructions in protocols or templates
• Protocols have numbered, ordered phases
• Templates have a quality checklist section
• New components do not conflict with existing ones

[Copilot]

Pull request overview

This PR expands PromptKit’s reusable protocol library by adding two new optional protocols aimed at improving review quality: one for Rust clone scrutiny and one for mapping repo standards and design docs before a review. The components are added without modifying any existing templates, and manifest.yaml is updated so the bootstrap engine can discover them.

Changes:

• Added a new reasoning protocol to inventory repo standards and map changed areas to relevant design documents (design-context-mapping).
• Added a new Rust-focused analysis protocol to evaluate .clone() usage and encourage borrow-first alternatives where appropriate (clone-discipline-rust).
• Registered both protocols in manifest.yaml under the appropriate protocol sections.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
protocols/reasoning/design-context-mapping.md	New reasoning protocol for repo-standards discovery and change-to-design-doc mapping before reviews.
protocols/analysis/clone-discipline-rust.md	New Rust analysis protocol for identifying unnecessary/high-cost cloning and suggesting safer alternatives.
manifest.yaml	Adds both new protocols so they’re discoverable by the PromptKit bootstrap/manifest system.

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.