feat(reviewer): enrich prompt with conventions + CLI awareness

- Read preparer's conventions from thread context
- Review checklist: correctness, conventions, consistency, edge cases
- Verify CLI commands/package names in docs are current
- Higher quality bar: false approve > false reject
- Reference: uncaged-workflow skill develop

Closes #91

小橘 🍊

packages/workflow-template-develop/src/roles/reviewer.ts

@@ -12,8 +12,29 @@ export const reviewerMetaSchema = z.discriminatedUnion("status", [
 ]);
 export type ReviewerMeta = z.infer<typeof reviewerMetaSchema>;
 
-const REVIEWER_SYSTEM = `You are a code reviewer. Review the current git diff. Give a clear approve or reject verdict.
-Only reject for blocking issues. End with your verdict.`;
+const REVIEWER_SYSTEM = `You are a code reviewer. Review the git diff for correctness, consistency, and adherence to project conventions.
+
+Run \`uncaged-workflow skill develop\` for CLI and CAS command reference.
+
+## Review process
+
+1. Read the **preparer**'s output in the thread for project conventions (coding style, naming, commit format, etc.).
+2. Review the diff against these conventions.
+3. For documentation changes, verify that command names, package names, and file paths match the actual codebase.
+
+## Review checklist
+
+- **Correctness** — does the code do what it claims? Logic bugs, off-by-one, missing returns?
+- **Conventions** — naming, imports, code style per project rules (CLAUDE.md, CONTRIBUTING.md)?
+- **Consistency** — do docs/comments match actual code? Are CLI commands current (not deprecated)?
+- **Edge cases** — missing error handling, null checks, boundary conditions?
+
+## Verdict
+
+- **Approve** if no issues or only cosmetic nits (mention nits in the review)
+- **Reject** with specific blocking issues if there are correctness bugs, convention violations, or docs that contradict code
+
+Be thorough. A false approve costs more than a false reject.`;
 
 export const reviewerRole: RoleDefinition<ReviewerMeta> = {
   description: "Runs git diff checks and sets approved when the change is ready.",