Assistant checkpoint: Add comprehensive .gitignore file

Assistant generated file changes:
- .gitignore: Add comprehensive gitignore to exclude build artifacts, dependencies, and temporary files

---

User prompt:

add gitiignore to reduccr or unneccary file to uploaded.

Replit-Commit-Author: Assistant
Replit-Commit-Session-Id: 6d74aa9e-44d0-4e5b-b999-934f4d23c112

Author: jayresearcher

.gitignore

@@ -0,0 +1,134 @@
+
+# Dependencies
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Build outputs
+dist/
+build/
+*.tgz
+*.tar.gz
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage directory used by tools like istanbul
+coverage/
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage
+.grunt
+
+# Bower dependency directory
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons
+build/Release
+
+# Dependency directories
+jspm_packages/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+.env.production
+.env.local
+
+# parcel-bundler cache
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+public
+
+# Storybook build outputs
+.out
+.storybook-out
+
+# Temporary folders
+tmp/
+temp/
+
+# Logs
+logs
+*.log
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+*.swp
+*.swo
+*~
+
+# Replit specific (keep .replit for configuration)
+# But exclude temporary files
+.breakpoints
+.upm/
+
+# ML model files (if large)
+*.h5
+*.pb
+*.ckpt
+models/
+
+# Test output
+test-results/
+coverage/
+
+# Package archives
+*.tgz
+*.tar.gz
+*.zip