devex: fix claude.md (#5439)

* feat: start on agents.md/claude.md

* feat: set up

* feat: api-client claude + skills

* feat: apps/frontend

* feat: skills list

* fix: lint issues

AGENTS.md

@@ -0,0 +1,13 @@
+See [CLAUDE.md](./CLAUDE.md) for all project instructions and guidelines.
+
+## Skills
+
+Project-specific skills (patterns, conventions, and implementation guides) are located in [`.claude/skills/`](./.claude/skills/). Each skill has a `SKILL.md` describing the pattern:
+
+- **[Dependency Injection](./.claude/skills/dependency-injection/SKILL.md)** — Vue provide/inject DI layer using `createContext`
+- **[Cross-Platform Pages](./.claude/skills/cross-platform-pages/SKILL.md)** — Shared component architecture across Nuxt and Tauri frontends
+- **[Multistage Modals](./.claude/skills/multistage-modals/SKILL.md)** — Wizard-like modal flows with `MultiStageModal`
+- **[Figma MCP](./.claude/skills/figma-mcp/SKILL.md)** — Translating Figma designs to Modrinth Vue components
+- **[i18n Convert](./.claude/skills/i18n-convert/SKILL.md)** — Converting hard-coded strings to vue-i18n localization
+- **[API Module](./.claude/skills/api-module/SKILL.md)** — Adding new endpoint modules to `@modrinth/api-client`
+- **[TanStack Query](./.claude/skills/tanstack-query/SKILL.md)** — Server state management with `@tanstack/vue-query` v5