feat(doc-review, learnings-researcher): tiers, chain grouping, rewrite (#601)

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/solutions/best-practices/codex-delegation-best-practices-2026-04-01.md

@@ -3,7 +3,7 @@ title: "Codex Delegation Best Practices"
 date: 2026-04-01
 category: best-practices
 module: "Codex delegation / skill design"
-problem_type: best_practice
+problem_type: convention
 component: tooling
 severity: medium
 applies_when:

docs/solutions/best-practices/conditional-visual-aids-in-generated-documents-2026-03-29.md

@@ -3,7 +3,7 @@ title: Conditional visual aids in generated documents and PR descriptions
 date: 2026-03-29
 category: best-practices
 module: compound-engineering plugin skills
-problem_type: best_practice
+problem_type: design_pattern
 component: documentation
 symptoms:
   - "Generated documents and PR descriptions lack visual aids that would improve comprehension of complex workflows and relationships"

docs/solutions/best-practices/prefer-python-over-bash-for-pipeline-scripts-2026-04-09.md

@@ -3,7 +3,7 @@ title: "Prefer Python over bash for multi-step pipeline scripts"
 date: 2026-04-09
 category: best-practices
 module: "skill scripting / ce-demo-reel"
-problem_type: best_practice
+problem_type: tooling_decision
 component: tooling
 severity: medium
 applies_when: