feat(registry): add test suite and fix CI gate quality issues

fix(registry): address review findings

feat(lint-engine): implement unified rule engine for CI

docs: update docs

ci: add missing

ci: fix glob matching and report-only summary for prompt quality gate

feat(branding): rebrand to PromptShield and update docs/paths

chore: bump version to 3.4.0

feat(prompt-smith): add weighted scoring and anti-pattern detection

feat(prompt-smith): add weighted scoring and anti-pattern detection

docs(token-management): replace hardcoded pricing with official docs link

docs(token-management): replace hardcoded pricing with official docs link

feat(eval): add /ps:eval command and evaluation runner

feat(eval): add /ps:eval command and evaluation runner

fix(docs): unify 7-Point → 8-Point terminology in commands/*.md