feat(skills): add skills page with list, install, uninstall and build under feature flag

[samuv]

Adds a new Skills page behind the skills experimental feature flag that exposes basic CRUD operations against the /api/v1beta/skills endpoints.

What's included:

• Feature flag — skills flag (experimental, off by default); opt-in via Settings → Experimental features
• Skills page — lists installed skills in a card grid with search/filter; accessible from the top nav when the flag is enabled
• Install — dialog to install a skill by OCI reference; supports user/project scope; project scope requires a folder picker for project_root; client dropdown populated from /api/v1beta/discovery/clients (installed clients only, sorted alphabetically)
• Build — dialog to build a skill from a local directory; native folder picker for path; on success shows a toast with an "Install now" action that pre-fills the install dialog
• Uninstall — confirmation dialog per card

Kapture.2026-03-30.at.19.26.21.mp4

[Copilot]

Pull request overview

Adds a new Skills feature (behind the experimental skills flag) including a new /skills route and UI to list, install, build, and uninstall skills via the /api/v1beta/skills endpoints.

Changes:

• Introduces the skills experimental feature flag and wires it into settings + top navigation.
• Adds a new /skills route and page UI (card grid with search, plus install/build/uninstall dialogs).
• Adds React Query mutation hooks + MSW fixtures and Vitest coverage for the new skills flows.

Reviewed changes

Copilot reviewed 29 out of 29 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
utils/feature-flags.ts	Adds SKILLS feature flag key.
main/src/feature-flags/flags.ts	Registers the skills flag as experimental/off-by-default.
renderer/src/common/hooks/use-experimental-features.tsx	Adds name/description for the skills flag in the experimental features UI.
renderer/src/common/components/layout/top-nav/index.tsx	Shows “Skills” nav link only when the flag is enabled.
renderer/src/routes/skills.tsx	Adds the /skills route with loader prefetch for skills list.
renderer/src/route-tree.gen.ts	Generated route tree updated to include /skills.
renderer/src/common/components/link-view-transition.tsx	Adds /skills to ordered routes list for transitions.
renderer/src/features/skills/components/skills-page.tsx	Page that fetches and renders skills list, plus install/build dialogs.
renderer/src/features/skills/components/grid-cards-skills.tsx	Renders skills as a responsive card grid.
renderer/src/features/skills/components/card-skill.tsx	Skill card UI + uninstall action.
renderer/src/features/skills/components/dialog-install-skill.tsx	Install flow UI (scope/project root picker, client dropdown).
renderer/src/features/skills/components/dialog-build-skill.tsx	Build flow UI + “Install now” toast action.
renderer/src/features/skills/components/dialog-uninstall-skill.tsx	Uninstall confirmation dialog.
renderer/src/features/skills/hooks/use-mutation-*.ts	React Query mutation hooks for install/build/uninstall.
renderer/src/common/mocks/fixtures/skills*/**	MSW AutoAPIMock fixtures for skills endpoints.
renderer/src/common/mocks/electronAPI.ts	Adds selectFolder mock for dialog folder pickers.
renderer/src/features/skills/**/tests/*	Adds component + hook tests for the new skills feature.