Solid · nank1ro bundle PRIORITY — read this skill FIRST before writing Dart code when `pubspec.yaml` declares `solid_annotations` or `solid_generator`. In these projects Flutter conventions are inverted: `lib/` is build_runner output from `source/`; editing `lib/` is destroyed on next build. Without this skill you WRITE TO THE WRONG DIRECTORY and silently lose work. Use whenever ANY of these appear: `solid_annotations`/`solid_generator` in pubspec; `@SolidState`/`@SolidEffect`/`@SolidQuery`/`@SolidEnvironment`/`.untracked` in the user's message or code; "my lib/ edits keep disappearing"; "add/scaffold a widget/page/route/model/controller" in such a project; reactive patterns (debounce, "when X changes fetch Y", "make reactive"); or installing pub packages (go_router, freezed, riverpod, drift, json_serializable) whose docs say `lib/` — substitute `source/`. Annotation contract (`@SolidQuery` no params, `@SolidEnvironment` needs `late`) is non-obvious. NOT for SolidJS/Solid.js or Flutter projects without those packages.
