chore(cli): retire the abandoned tsup build path

.changeset/cli-retire-abandoned-tsup-config.md

@@ -0,0 +1,21 @@
+---
+"@objectstack/cli": patch
+---
+
+Remove the abandoned tsup build path from `packages/cli` (#10185): the
+`tsup.config.ts`, the orphaned `src/bin.ts` it was the only referrer of, and
+the now-unused `tsup` devDependency.
+
+The package has built with `tsc -p tsconfig.build.json` since the oclif
+migration, which also introduced `oclif.commands.target: "./dist/commands"`
+and moved the `bin` field onto `bin/run.js`. The tsup config was left behind
+by that commit and never invoked again — but it was not inert. It declared
+`clean: true` with only `src/bin.ts` and `src/index.ts` as entries, so anyone
+running the obvious `tsup` next to a `tsup.config.ts` would wipe `dist/` and
+emit no `dist/commands/**` at all, leaving a CLI that resolves zero commands.
+Deleting it removes the trap rather than documenting it.
+
+No published behaviour changes: the resolved oclif command surface is
+identical before and after (60 commands, 68 topics). The only build-output
+difference is that `dist/bin.js` — a re-export of `execute` from
+`@oclif/core` that nothing imported — is no longer emitted.

packages/cli/package.json

@@ -119,7 +119,6 @@
  "@oclif/plugin-plugins": "^5.4.87",
  "@types/better-sqlite3": "^7.6.13",
  "@types/node": "^26.2.0",
- "tsup": "^8.5.1",
  "typescript": "^6.0.3",
  "vitest": "^4.1.10"
  },