Migrate 203 test files (356 call sites) from fs.rm/fs.rmSync to
removeWithRetries/removeSyncWithRetries to reduce EBUSY test failures
on Windows. removeWithRetries is now exported from @oh-my-pi/pi-utils.
The migration uses a regex-based approach that:
- Replaces fs.rm(path, { recursive, force }) → removeWithRetries(path)
- Replaces fs.rmSync(path, { recursive, force }) → removeSyncWithRetries(path)
- Replaces fs.rm(path) → removeWithRetries(path) (no options)
- Skips fs.rm/fs.rmSync inside template literals (bun --eval scripts)
- Adds imports to existing @oh-my-pi/pi-utils import or creates new one
- Removes unused fs imports where fs.rm was the only fs usage (4 files)
Installed pi packages declare their entry as `pi.extensions: ["./extensions"]` with the real module at `extensions/<name>/index.ts`, but the plugin manifest resolver only matched a file or a directory containing a direct index.{ts,js,mjs,cjs}. A directory whose entry sits one level below resolved to null, so `omp plugin install` rejected it ("declared extension entry not found on disk") and runtime load silently skipped it.
For the extensions key, resolveManifestEntryFiles now resolves a directory like OMP's configured-directory (-e) scanner: the directory's own package.json omp/pi extensions (authoritative -- a declared-but-missing entry is reported, not replaced by a decoy index), then a direct index.{ts,js,mjs,cjs}, then a one-level scan where each child directory is itself resolved manifest-first plus direct *.{ts,js,mjs,cjs} files. The directory expansion is gated to the extensions key; tools/hooks/commands keep direct-index resolution so a directory entry like `tools: "."` is unaffected.
Adds CHANGELOG Unreleased entry and regression tests for subdir-index, nested-manifest-over-index, missing-declared-entry, and key-aware (tools vs extensions) resolution. Verified: omp plugin install @zosmaai/pi-llm-wiki registers all 14 wiki_* tools; pi-mcp-adapter loads.