Fix `pnpm patch`, `pnpm patch-commit`, `pnpm patch-remove`, and `pnpm install` in workspaces with `sharedWorkspaceLockfile: false` in both pnpm v11 (`pnpm11/`) and pnpm v12 (`pnpm/`):
1. `pnpm patch`: When `sharedWorkspaceLockfile: false` and the target directory has no current lockfile, merge `packages` and `snapshots` across all workspace projects' current lockfiles to resolve the installed package version. Anchor `patchesDir` to `workspaceDir ?? lockfileDir`.
2. `pnpm patch-commit`: Search workspace project `modulesDir`s and `<editDir>/../..` when resolving the patched package directory, write patches relative to `workspaceDir ?? lockfileDir` without mutating `opts.patchedDependencies` to relative paths before delegating to `install`, and update lockfile snapshots across all workspace projects.
3. `pnpm patch-remove`: Resolve patch files relative to `workspaceDir ?? lockfileDir` and run a workspace-wide dedicated-lockfile install when `sharedWorkspaceLockfile: false`.
4. `pnpm install`: Skip per-project unused-patch errors during individual workspace project installs when `sharedWorkspaceLockfile: false`, and verify patches across the union of all workspace project lockfiles once the full workspace install finishes.
Closespnpm/tasks#176
Zoltan Kochan
f8ba6e18e7