`pnpm outdated` and `pnpm update --interactive` previously skipped runtime dependencies (`node`/`deno`/`bun` installed via the `runtime:` protocol). Both commands go through `outdatedDepsOfProjects` → `outdated()`, and the inner loop bailed out for anything `parseBareSpecifier` couldn't parse — which is everything `runtime:`-shaped. A runtime was only ever reported if the current install differed from the wanted lockfile entry, so the latest available version was never surfaced. The same gap silently affected `jsr:` and named-registry deps too.
Commits, smallest fix first → progressively cleaner architecture:
1. **`feat(outdated)`** — minimal fix: special-case runtime deps in `outdated.ts` so they appear in the table and the interactive update picker.
2. **`refactor(outdated)`** — per-resolver dispatch. Each protocol resolver gets its own "what's the latest?" function; `@pnpm/resolving.default-resolver` composes them.
3. **`refactor(outdated)`** — rename to `resolveLatest` (the function returns info regardless of whether the dep is outdated; "outdated" described a state, not an action).
4. **`refactor(outdated)`** — let the local-resolver own the `link:`/`file:` skip, drop the matching short-circuit in `outdated.ts`.
5. **`refactor(outdated)`** — slim `LatestQuery` / `LatestInfo` to the bare essentials; move `pickRegistryForPackage` into the npm-resolver where it belongs; derive `current`/`wanted` display from `pkgSnapshot.version` in `outdated.ts`.
6. **`chore(outdated)`** — drop stale tsconfig project reference left behind by #5.
7. **`refactor(outdated)`** — drop `wantedRef` from the query; resolvers detect protocol from `bareSpecifier` alone.
## Final architecture
`@pnpm/resolving.resolver-base` defines a single tiny protocol:
```ts
interface LatestQuery {
wantedDependency: WantedDependency
compatible?: boolean
}
interface LatestInfo {
latestManifest?: PackageManifest
}
type ResolveLatestFunction = (query: LatestQuery, opts: ResolveOptions) =>
Promise<LatestInfo | undefined>
```
- `undefined` from a resolver means "I don't claim this dep — try the next one."
- `{}` means "I claim it, but I can't tell you what's latest" (policy-blocked, network unavailable, or a protocol with no concept of latest — git/tarball).
- `{ latestManifest }` is the happy path.
Each protocol resolver (npm/jsr/named-registry, git, tarball, local, node/bun/deno runtimes) exports its own `resolveLatest*` function alongside its `resolve*`. `@pnpm/resolving.default-resolver` composes them into a single first-match dispatcher, surfaced through `@pnpm/installing.client` as `createResolver(...).resolveLatest`.
`outdated.ts` is protocol-agnostic: dispatches, then derives `current`/`wanted` display from `pkgSnapshot.version` (falling back to the raw ref for URL-shaped refs where the URL is the only diff signal between commits), uses raw `wantedRef !== currentRef` for the lockfile-shifted check, and pulls `packageName` from `dp.parse(relativeDepPath).name` so aliased deps still report under the real package name.
Per-resolver responsibilities:
- **npm-resolver** (`resolveLatestFromNpm` / `resolveLatestFromJsr` / `resolveLatestFromNamedRegistry`): match their respective spec shapes, call the matching `resolveFromX` with `'latest'` (or the original spec under `--compatible`), handle `MINIMUM_RELEASE_AGE_VIOLATION` and `ERR_PNPM_NO_MATCHING_VERSION` so policy-blocked deps don't surface as available updates. Picks the per-package registry internally via its ctx.
- **node/bun/deno runtime resolvers**: claim deps via `bareSpecifier.startsWith('runtime:')` + alias match, query their release sources for the latest version (only the version — no asset-hash fetches), return `{ latestManifest }`.
- **git / tarball resolvers**: claim deps via spec shape, return `{}` (no concept of "latest"); the caller still surfaces a ref-mismatch report if the lockfile shifted to a different commit/URL.
- **local-resolver**: returns `undefined` so `link:`/`file:`/`workspace:` deps fall through and get silently skipped.
Add eslint-plugin-simple-import-sort to enforce consistent import ordering:
- Node.js builtins first
- External packages second
- Relative imports last
- Named imports sorted alphabetically within each statement
