feat: add skill gym for brownie and navigation agent skills

[hurali97]

Summary

This setups the skillgym for brownie and navigation agent skills.

Test plan

Brownie

Navigation

[Copilot]

Pull request overview

Adds a SkillGym setup to exercise the repo’s Brownie and Brownfield Navigation “agent skills”, using an isolated Expo template workspace that the runner can bootstrap and run codegen against.

Changes:

• Add skillgym dependency + npm scripts to run Brownie and Navigation SkillGym suites.
• Introduce skillgym.config.ts and two suites (brownie-suite and brownfield-navigation-suite) with isolated workspace bootstrapping.
• Add an Expo app template under skillgym/template/skillgym-app (code + assets) used by the suites.

Reviewed changes

Copilot reviewed 30 out of 55 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
yarn.lock	Updates lockfile for SkillGym dependency graph and workspace metadata.
package.json	Adds skillgym dev dependency + scripts to run suites.
.gitignore	Ignores SkillGym results and Cursor artifacts; broadens Yarn ignore pattern.
skillgym.config.ts	Defines SkillGym run defaults and a Cursor runner config.
skillgym/suites/brownie-suite.ts	Adds Brownie skill suite (setup + native wiring assertions).
skillgym/suites/brownfield-navigation-suite.ts	Adds Brownfield Navigation skill suite (setup + native wiring assertions).
skillgym/template/skillgym-app/.gitignore	Template-level ignore rules for Expo/RN generated artifacts.
skillgym/template/skillgym-app/README.md	Template README with basic Expo usage instructions.
skillgym/template/skillgym-app/app.json	Expo app configuration (icons, splash, router plugin, experiments).
skillgym/template/skillgym-app/package.json	Template app deps (Expo, RN, brownie + navigation packages, CLI).
skillgym/template/skillgym-app/tsconfig.json	Template TS config extending Expo base with path aliases.
skillgym/template/skillgym-app/scripts/reset-project.js	Template reset script for create-expo-app starter structure.
skillgym/template/skillgym-app/src/global.css	Template global CSS variables for web fonts.
skillgym/template/skillgym-app/src/constants/theme.ts	Template theme tokens (colors, fonts, spacing).
skillgym/template/skillgym-app/src/hooks/use-theme.ts	Theme hook selecting light/dark palette.
skillgym/template/skillgym-app/src/hooks/use-color-scheme.ts	Native color scheme hook export.
skillgym/template/skillgym-app/src/hooks/use-color-scheme.web.ts	Web color scheme hook with hydration guard.
skillgym/template/skillgym-app/src/components/web-badge.tsx	Web-only Expo version + badge display.
skillgym/template/skillgym-app/src/components/themed-view.tsx	Themed container view component.
skillgym/template/skillgym-app/src/components/themed-text.tsx	Themed text component + typography variants.
skillgym/template/skillgym-app/src/components/hint-row.tsx	Small UI helper row for hints/snippets.
skillgym/template/skillgym-app/src/components/external-link.tsx	External link wrapper (native in-app browser vs web).
skillgym/template/skillgym-app/src/components/app-tabs.tsx	Native tabs implementation (unstable native tabs).
skillgym/template/skillgym-app/src/components/app-tabs.web.tsx	Web tabs implementation using expo-router/ui.
skillgym/template/skillgym-app/src/components/ui/collapsible.tsx	Collapsible UI component with reanimated entering animation.
skillgym/template/skillgym-app/src/components/animated-icon.tsx	Native animated splash/icon components.
skillgym/template/skillgym-app/src/components/animated-icon.web.tsx	Web animated icon implementation + CSS background.
skillgym/template/skillgym-app/src/components/animated-icon.module.css	CSS module for web logo background gradient.
skillgym/template/skillgym-app/src/app/_layout.tsx	App root layout wiring tabs + theme provider + splash overlay.
skillgym/template/skillgym-app/src/app/index.tsx	Home screen content.
skillgym/template/skillgym-app/src/app/explore.tsx	Explore screen content and collapsibles.
skillgym/template/skillgym-app/assets/images/tabIcons/home.png	Template tab icon asset.
skillgym/template/skillgym-app/assets/images/tabIcons/home@2x.png	Template tab icon asset (@2x).
skillgym/template/skillgym-app/assets/images/tabIcons/home@3x.png	Template tab icon asset (@3x).
skillgym/template/skillgym-app/assets/images/tabIcons/explore.png	Template tab icon asset.
skillgym/template/skillgym-app/assets/images/tabIcons/explore@2x.png	Template tab icon asset (@2x).
skillgym/template/skillgym-app/assets/images/tabIcons/explore@3x.png	Template tab icon asset (@3x).
skillgym/template/skillgym-app/assets/images/splash-icon.png	Template splash icon asset.
skillgym/template/skillgym-app/assets/images/react-logo.png	Template React logo asset.
skillgym/template/skillgym-app/assets/images/react-logo@2x.png	Template React logo asset (@2x).
skillgym/template/skillgym-app/assets/images/react-logo@3x.png	Template React logo asset (@3x).
skillgym/template/skillgym-app/assets/images/favicon.png	Template favicon asset.
skillgym/template/skillgym-app/assets/images/expo-logo.png	Template Expo logo asset.
skillgym/template/skillgym-app/assets/images/expo-badge.png	Template Expo badge asset.
skillgym/template/skillgym-app/assets/images/expo-badge-white.png	Template Expo badge asset (white).
skillgym/template/skillgym-app/assets/images/android-icon-monochrome.png	Template Android monochrome adaptive icon asset.
skillgym/template/skillgym-app/assets/images/android-icon-background.png	Template Android adaptive icon background asset.
skillgym/template/skillgym-app/assets/expo.icon/icon.json	Template iOS icon asset catalog configuration.
skillgym/template/skillgym-app/assets/expo.icon/Assets/expo-symbol 2.svg	Template iOS icon asset.
skillgym/template/skillgym-app/assets/expo.icon/Assets/grid.png	Template iOS icon asset.

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