format: apply repo prettier (3.8.1) to the folded skills tree

963 markdown files reformatted with the repository's pinned prettier so
pnpm format:check covers the folded tree like every other repo file.

The formatter's embedded-language pass also normalized code fences
(TS semicolons, closed HTML tags in examples, lowercased CSS hex colors,
one renumbered list that skipped an index). Alphanumeric token deltas vs
the fold commit were audited file-by-file; all are formatter-equivalent
markup normalizations plus the four sanitized skills.

packages/mosaic/framework/skills/code-review-excellence/reference/cpp.md

@@ -357,6 +357,7 @@ clang-format -i src/*.cpp include/*.h
 ## Review Checklist
 
 ### Safety and Lifetime
+
 - [ ] Ownership is explicit (RAII, unique_ptr by default)
 - [ ] No dangling references or views
 - [ ] Rule of 0/3/5 followed for resource-owning types
@@ -364,22 +365,26 @@ clang-format -i src/*.cpp include/*.h
 - [ ] Destructors are noexcept and do not throw
 
 ### API and Design
+
 - [ ] const-correctness is applied consistently
 - [ ] Constructors are explicit where needed
 - [ ] Override/final used for virtual functions
 - [ ] No object slicing (pass by ref or pointer)
 
 ### Concurrency
+
 - [ ] Shared data is protected (mutex or atomics)
 - [ ] Locking order is consistent
 - [ ] No blocking while holding locks
 
 ### Performance
+
 - [ ] Unnecessary allocations avoided (reserve, move)
 - [ ] Copies avoided in hot paths
 - [ ] Algorithmic complexity is reasonable
 
 ### Tooling and Tests
+
 - [ ] Builds clean with warnings enabled
 - [ ] Sanitizers run on critical code paths
 - [ ] Static analysis (clang-tidy) results are addressed