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/linguist-languages/data/Vim_20_Snippet.js

@@ -0,0 +1,10 @@
+module.exports = {
+  name: 'Vim Snippet',
+  type: 'markup',
+  aceMode: 'text',
+  extensions: ['.snip', '.snippet', '.snippets'],
+  languageId: 81265970,
+  tmScope: 'source.vim-snippet',
+  aliases: ['SnipMate', 'UltiSnip', 'UltiSnips', 'NeoSnippet'],
+  color: '#199f4b',
+}