Config is now loaded eagerly during project bootstrap so users can see config loading in traces during startup. This helps diagnose configuration issues earlier in the initialization flow.
NPM installation logic has been refactored with a unified reify function and improved InstallFailedError that includes both the packages being installed and the target directory. This provides users with complete context when package installations fail, making it easier to identify which dependency or project directory caused the issue.
Fixes potential plugin resolution issues when switching between projects by wrapping
plugin loading in Instance.provide(). This ensures each plugin resolves dependencies
relative to its correct project directory instead of inheriting context from whatever
instance happened to be active.
Also reorganizes config loading code into focused modules (command.ts, managed.ts,
plugin.ts) to make the codebase easier to maintain and test.
