feat(sprint-build): add detailed step-by-step UAT test case format

feat(skills): add /sprint-build for batch sprint execution with auto-UAT

feat(skills): add allowed-tools frontmatter for auto-approval

fix(skills): eliminate pipe operators from backtick context commands

feat(scripts): add --skip-permissions toggle for sprint/phase launches

fix(skills): remove double quotes from backtick context commands

feat(diagrams): enforce step numbering on all diagrams and flow explanations

feat(sdlc): add interactive commit-and-push on phase gate pass

feat(sdlc): add UAT setup skill with environment provisioning and reporting

fix(release): replace $() command substitution in context command

feat(git): migrate to GitHub Flow and sync with MultiStack kit

fix(skills): replace broken nested-quote python3 context commands

chore: initial commit — AI-Native SDLC Factory kit v1.0.0