Add Git LFS configuration, .gitignore, and README for setup instructions

.gitignore

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+# Git LFS Template Repository - .gitignore
+# This file defines files and folders to be ignored by Git
+
+# ===== OPERATING SYSTEM FILES =====
+
+# Windows
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+*.tmp
+*.temp
+Desktop.ini
+$RECYCLE.BIN/
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+*.lnk
+
+# macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+Icon
+._*
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Linux
+*~
+.fuse_hidden*
+.directory
+.Trash-*
+.nfs*
+
+# ===== IDE AND EDITOR FILES =====
+
+# Visual Studio / Visual Studio Code
+.vs/
+.vscode/
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+*.userprefs
+*.VC.db
+*.VC.opendb
+*.VC.VC.opendb
+
+# JetBrains IDEs
+.idea/
+*.iml
+*.ipr
+*.iws
+.idea_modules/
+
+# Sublime Text
+*.sublime-project
+*.sublime-workspace
+
+# Vim
+*.swp
+*.swo
+*~
+
+# Emacs
+*~
+\#*\#
+/.emacs.desktop
+/.emacs.desktop.lock
+*.elc
+auto-save-list
+tramp
+.\#*
+
+# ===== PROGRAMMING LANGUAGES =====
+
+# Node.js
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.npm
+.yarn-integrity
+.pnp.*
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Java
+*.class
+*.jar
+*.war
+*.ear
+*.nar
+hs_err_pid*
+target/
+.gradle/
+build/
+out/
+
+# C/C++
+*.o
+*.obj
+*.exe
+*.out
+*.app
+*.so
+*.dylib
+*.dll
+*.a
+*.lib
+*.d
+*.elf
+*.bin
+*.hex
+*.map
+*.lst
+*.sym
+*.dis
+*.asm
+*.s
+*.S
+*.i
+*.ii
+*.cc
+*.cpp
+*.cxx
+*.c++
+*.h
+*.hh
+*.hpp
+*.hxx
+*.h++
+*.inl
+*.inc
+*.ipp
+*.tcc
+*.tpp
+*.txx
+*.t++
+*.def
+*.odl
+*.idl
+*.hdl
+*.bat
+*.cmd
+*.dsp
+*.dsw
+*.doxy
+*.gch
+*.gch.pch
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# ===== WEB DEVELOPMENT =====
+
+# Dependencies
+bower_components/
+jspm_packages/
+
+# Build outputs
+dist/
+build/
+out/
+.next/
+.nuxt/
+.vuepress/dist
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage directory used by tools like istanbul
+coverage/
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# 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
+.env.development.local
+.env.test.local
+.env.production.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.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/
+
+# ===== DATABASE =====
+
+# SQLite
+*.db
+*.sqlite
+*.sqlite3
+*.db-journal
+
+# MySQL
+*.sql
+*.sql.gz
+
+# PostgreSQL
+*.sql
+*.dump
+
+# ===== BACKUP AND TEMP FILES =====
+
+# Backup files
+*.bak
+*.backup
+*.old
+*.orig
+*.save
+*.swp
+*.swo
+*~
+
+# Temporary files
+*.tmp
+*.temp
+*.log
+*.pid
+*.seed
+*.pid.lock
+
+# ===== LFS RELATED =====
+
+# LFS cache (optional - usually not ignored)
+# .git/lfs/
+
+# ===== PROJECT SPECIFIC =====
+
+# Custom project files
+config.local.js
+secrets.json
+.env.local
+.env.production.local
+.env.development.local
+
+# ===== NOTES =====
+# Customize this file according to your project needs
+# LFS tracked files are not automatically ignored
+# To add new ignore rules, add them to the appropriate categories above