refactor(release): drop dead boss snapshot members

`scripts/release-boss.mjs` listed five files under
`bossSnapshotIncludes`. Only `build-boss-edition.mjs` is live —
invoked by both `release-boss.mjs:178` (local mac) and
`.github/workflows/remote-boss-platforms.yml:44` (remote Win).

The other four were leftovers from a previous packaging iteration:

  - `build-boss-mac.mjs` — old mac patcher keyed on `CompanyOnboarding`
    capital-case paths that no longer exist after the company-onboarding
    rename.
  - `build-boss.mjs` — earlier "full edition" builder referencing
    ProvidersStepShared.tsx / AgentCreator.tsx, both deleted by the
    pi-mono catalog rewrite.
  - `build-boss.sh` — thin wrapper that only called
    `build-boss-mac.mjs`.
  - `build-boss-desktop.mjs` — shipped to every snapshot branch but
    never invoked anywhere.

Carrying dead code in the snapshot manifest makes each Boss release
rsync ~1 k LOC of patches that can never run and, more subtly,
tempts a future reader to keep them in sync with the live source.
Removing them here and deleting the files themselves (they live in
gitignored `boss-build/`, not in tree) leaves exactly one live
builder and one snapshot member per real purpose.

No functional change to the live release path. Local verified: both
`pnpm build:dir` (normal AgentCompany.app) and
`node boss-build/build-boss-edition.mjs --platform=mac --version=0.4.167`
(Boss arm64 + x64 DMG + zip + blockmap) produce complete artifacts
with a clean source tree afterwards.

scripts/release-boss.mjs

@@ -36,11 +36,7 @@ const syncExcludes = [
 const bossSnapshotIncludes = [
   remoteBossWorkflowFile,
   "boss-build/boss-runtime.json",
-  "boss-build/build-boss-desktop.mjs",
   "boss-build/build-boss-edition.mjs",
-  "boss-build/build-boss-mac.mjs",
-  "boss-build/build-boss.mjs",
-  "boss-build/build-boss.sh",
   "boss-build/electron-builder-boss.yml",
 ];