chore: establish development baseline

.gitignore

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+# Binaries
+/bin/
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+bat
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool
+*.out
+
+# Go workspace file
+go.work
+go.work.sum
+
+# Rust
+/target/
+**/*.rs.bk
+*.pdb
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+.DS_Store
+
+# Environment
+.env
+.env.local
+.env.*.local
+
+# Database
+*.db
+*.sqlite
+*.sqlite3
+
+# Logs
+*.log
+logs/
+pg_log/
+
+# Backups
+/deployments/backups/
+
+# Temporary files
+tmp/
+temp/
+*.tmp
+
+# CAS Storage
+/cas/
+/data/
+
+# Node modules (for web)
+node_modules/
+dist/
+.cache/
+
+# Build artifacts
+*.tar.gz
+*.zip
+
+# OS
+Thumbs.db
+.DS_Store