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

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

vendor/spatie/ignition/node_modules/postcss-discard-empty/CHANGELOG.md

@@ -0,0 +1,34 @@
+# 4.0.0-rc.0
+
+* Breaking: Drops support for Node 0.12, we now require at least Node 4.
+* Breaking: Update PostCSS to 6.0.0.
+
+# 2.1.0
+
+* postcss-discard-empty will now report the rules that were removed
+  (thanks to @duncanbeevers).
+
+# 2.0.1
+
+* Now compiled with babel 6.
+
+# 2.0.0
+
+* Upgraded to PostCSS 5.
+
+# 1.1.2
+
+* Increased performance by iterating the AST in a single pass
+  (thanks to @andyjansson).
+
+# 1.1.1
+
+* Tweaks for compatibility with the plugin guidelines.
+
+# 1.1.0
+
+* Now uses the PostCSS `4.1` plugin API.
+
+# 1.0.0
+
+* Initial release.