SPEC-74: SonarCloud minor code smells — 331 issues / 24 regras

Slice de #152. SPEC: .specs/74_sonar_minor_code_smells_spec.md (MINOR+INFO). Executar por último.

Rescan live 2026-10-23 (SPEC-96) — veredito final

Regra	Open	Status
csharpsquid:S8970	143	real — params naming (maior fatia MINOR)
csharpsquid:S3267	9	real
csharpsquid:S1075	10	deferred → SPEC-106
csharpsquid:S1192	1	quase zerada
csharpsquid:S2486	0	resolvida
javascript/css minor	~95	gerado/vendored → exclusão
tail csharpsquid	~25	real pequeno

MINOR open real: 263 (vs 331 do board).