Fix bin/publish: copy docs.dist from project root

Fix bin/publish: use correct .env path for rspade_system
Fix bin/publish script: prevent grep exit code 1 from terminating script

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Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/is-wsl/index.d.ts

@@ -0,0 +1,15 @@
+/**
+Check if the process is running inside [Windows Subsystem for Linux](https://msdn.microsoft.com/commandline/wsl/about) (Bash on Windows).
+
+@example
+```
+import isWsl = require('is-wsl');
+
+// When running inside Windows Subsystem for Linux
+console.log(isWsl);
+//=> true
+```
+*/
+declare const isWsl: boolean;
+
+export = isWsl;