chore: clean up root configuration files

- Remove redundant .npmrc (ignore-build-scripts=false is default)
- Remove Makefile (scripts available in package.json)
- Simplify root package.json:
  - Remove duplicate pnpm keys
  - Remove frontend-specific esbuild config (already in apps/web/package.json)
  - Remove version/description (not needed for private workspace root)
  - Remove compose scripts (use docker compose directly)
- Clean pnpm-workspace.yaml:
  - Remove placeholder allowBuilds comment
  - Remove onlyBuiltDependencies (handled per-workspace)

pnpm-workspace.yaml

@@ -1,7 +1,3 @@
 packages:
   - 'apps/*'
   - 'packages/*'
-allowBuilds:
-  esbuild: set this to true or false
-onlyBuiltDependencies:
-  - esbuild