chore: update gitignore and stop tracking sqlite runtime files

.gitignore

@@ -1,29 +1,342 @@
+# ============================================
+# Certigo Addon - Comprehensive .gitignore
+# ============================================
+
+# ============================================
+# Go / Backend
+# ============================================
+
+# Binaries and executables
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+backend/bin/
+backend/myapp
+backend/certigo-addon
+backend/certigo-addon-*
+/tmp/certigo-addon-*
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool
+*.out
+coverage.html
+coverage.txt
+
+# Go workspace file
+go.work
+go.work.sum
+
+# Go module cache (optional, but recommended for CI/CD)
+# .go/
+
+# ============================================
+# Node.js / Frontend
+# ============================================
+
 # Dependencies
 node_modules/
 frontend/node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
 
 # Build outputs
 dist/
+dist-ssr/
 frontend/dist/
-backend/bin/
+*.local
 
+# Vite
+.vite/
+vite.config.js.timestamp-*
+vite.config.ts.timestamp-*
+
+# Environment
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+.env*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+# ============================================
 # Database
+# ============================================
+
+# SQLite databases
 *.db
+*.db-shm
+*.db-wal
 *.sqlite
 *.sqlite3
 backend/spaces.db
+backend/*.db
 
-# Environment variables
-.env
-.env.local
+# Database backups
+*.sql.backup
+*.db.backup
 
-# IDE
+# ============================================
+# Uploads & User-generated Content
+# ============================================
+
+# User uploads (avatars, files, etc.)
+backend/uploads/
+backend/uploads/**
+!backend/uploads/.gitkeep
+frontend/public/uploads/
+
+# ============================================
+# Logs
+# ============================================
+
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+backend/*.log
+
+# ============================================
+# IDE & Editors
+# ============================================
+
+# VSCode
 .vscode/
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+# IntelliJ IDEA / WebStorm
 .idea/
+*.iml
+*.iws
+*.ipr
+out/
+
+# Sublime Text
+*.sublime-project
+*.sublime-workspace
+
+# Vim
 *.swp
 *.swo
+*~
+.vim/
 
-# OS
+# Emacs
+*~
+\#*\#
+/.emacs.desktop
+/.emacs.desktop.lock
+*.elc
+auto-save-list
+tramp
+.\#*
+
+# ============================================
+# OS Files
+# ============================================
+
+# macOS
 .DS_Store
-Thumbs.db
+.AppleDouble
+.LSOverride
+Icon
+._*
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
 
+# Windows
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+*.stackdump
+[Dd]esktop.ini
+$RECYCLE.BIN/
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+*.lnk
+
+# Linux
+*~
+.fuse_hidden*
+.directory
+.Trash-*
+.nfs*
+
+# ============================================
+# Temporary & Cache Files
+# ============================================
+
+# Temporary files
+*.tmp
+*.temp
+*.bak
+*.backup
+*.swp
+*~.nib
+*.orig
+
+# Cache directories
+.cache/
+.parcel-cache/
+.eslintcache
+.stylelintcache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+.node_repl_history
+.yarn-integrity
+
+# ============================================
+# Testing & Coverage
+# ============================================
+
+# Test coverage
+coverage/
+*.lcov
+.nyc_output/
+.coverage/
+htmlcov/
+.pytest_cache/
+.tox/
+
+# Jest
+.jest/
+
+# ============================================
+# Build Tools & CI/CD
+# ============================================
+
+# Build artifacts
+build/
+out/
+target/
+.next/
+.nuxt/
+.cache/
+
+# CI/CD
+.github/workflows/*.yml.local
+.circleci/
+.travis.yml.local
+
+# ============================================
+# Security & Secrets
+# ============================================
+
+# Secrets and credentials
+*.pem
+*.key
+*.crt
+*.cert
+secrets/
+.secrets/
+*.secret
+config/secrets.*
+
+# API keys and tokens
+.env.secret
+.env.production
+.env.staging
+
+# ============================================
+# Documentation Build
+# ============================================
+
+# Generated documentation
+docs/_build/
+site/
+
+# ============================================
+# Misc
+# ============================================
+
+# Package manager lock files (optional - uncomment if you want to ignore)
+# package-lock.json
+# yarn.lock
+# pnpm-lock.yaml
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env.development
+.env.test
+.env.production
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# ============================================
+# Project-specific
+# ============================================
+
+# OpenAPI generated files (if any)
+backend/generated/
+backend/api/
+
+# Provider test outputs
+backend/test-outputs/
+
+# Script outputs
+backend/scripts/output/
+
+# Keep directory structure but ignore contents
+!backend/uploads/.gitkeep
+!backend/config/providers/.gitkeep