chore: bump github actions to latest versions

chore(changelog): add v1.3.0 entry with demo mode changes

feat(demo): add demo mode launcher and update screenshots

ci(release): automate versioning from CHANGELOG.md

feat(usage): add pacing risk indicator to usage cards

docs: rename README directory to docs

fix(ci): skip snapshot tests due to rendering differences

fix(ci): disable code signing for test workflow

ci: add test workflow to run Xcode tests on push

refactor(menu-bar): replace MenuBarExtra with NSStatusItem and NSPopover

feat(app): add notification tap-to-open and wake refresh

docs: consolidate CLAUDE.md as symlink to AGENTS.md

refactor(app): modernize app lifecycle and testing

refactor(app): move menu bar app to AppModel architecture

fix(menu-bar): sync icon when popover refresh is triggered