v1.7.2 — Slider crash fix and measured token costs

Fixes

• navigator.py no longer crashes on screens with a slider or stepper. idb reports their AXValue as a number, which broke text matching with a TypeError traceback. Values are now converted to text when the accessibility tree is read. (#119)

Docs

• New install route: npx skills add conorluddy/ios-simulator-skill, for any agent the skills CLI supports. (#118)
• Measured token costs replace the old, unmeasured savings table. Walking 6 screens of a real app: full screenshots ~9,000 tokens, raw idb ui describe-all ~91,000, screen_mapper.py summaries ~250. The raw accessibility tree often costs more than a screenshot; the summary is the win. (#118)
• Screenshot --size presets documented with per-size token costs, noting that providers already downscale large images, so half saves ~30%, not 75%. (#118)

What's Changed

• docs(readme): npx skills install + measured token costs by @conorluddy in #118
• fix(navigator): coerce numeric AXValue to text by @conorluddy in #119
• chore: prepare v1.7.2 release by @conorluddy in #120

Full Changelog: v1.7.1...v1.7.2