Add development config files and wiring to include them in the shell build. Creates packages/napcat-develop/config/.env and packages/napcat-develop/config/onebot11.json, adds a root script `build🐚config` that builds napcat-shell and then runs napcat-develop's `copy-env` script. Update packages/napcat-develop/package.json to add the `copy-env` script (uses xcopy to copy config into the napcat-shell dist), tidy exports and metadata. This ensures dev configuration is packaged into napcat-shell during the build process.
