Remove accidentally committed files and fix load time regression

Removed:
- node_modules/ (caused 3-4x load time regression)
- package.json, package-lock.json
- .CLAUDE.md, .claude/settings.local.json
- test_optimization_tools/ (moved to tmp/test_optimization_work/)
- Documentation markdown files (moved to tmp/test_optimization_work/)

Updated .gitignore and .rubocop_cc.yml accordingly.

This fixes the 40-50 second load time regression and should make
the 8.4s ProcessObserver optimizations visible in CI.

All working files preserved in tmp/test_optimization_work/

Author: johha

.CLAUDE.md

@@ -27,6 +27,26 @@ test.err
 test.out
 !/.devcontainer/**/*
 
+# Node modules and package files
+node_modules/
+package-lock.json
+package.json
+
+# Claude Code local files
+.claude/
+.CLAUDE.md
+
+# Test optimization working files
+test_optimization_tools/
+*_analysis*.md
+AUTONOMOUS_*.md
+PROFILING_*.md
+QUICK_STATUS.md
+REVIEW_*.md
+SESSION_*.md
+OPTION_*.md
+CI_*.md
+
 #DOCS
 docs/v2/index.html
 

.claude/settings.local.json

@@ -25,7 +25,6 @@ AllCops:
     - lib/logcache/**/*_pb.rb
     - lib/loggregator-api/**/*_pb.rb
     - vendor/bundle/**/*
-    - test_optimization_tools/**/*
 
 
 #### CUSTOMIZED SECTION