chore: standardize .gitignore (RSR)

Author: hyperpolymath

.gitignore

@@ -1,42 +1,79 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# RSR-compliant .gitignore
+
+# OS & Editor
+.DS_Store
+Thumbs.db
+*.swp
+*.swo
+*~
+.idea/
+.vscode/
+
+# Build
+/target/
+/_build/
+/build/
+/dist/
+/out/
+
 # Dependencies
-node_modules/
-package-lock.json
-yarn.lock
+/node_modules/
+/vendor/
+/deps/
+/.elixir_ls/
+
+# Rust
+# Cargo.lock  # Keep for binaries
+
+# Elixir
+/cover/
+/doc/
+*.ez
+erl_crash.dump
 
-# Build output
-dist/
-build/
-*.tsbuildinfo
+# Julia
+*.jl.cov
+*.jl.mem
+/Manifest.toml
 
-# Testing
-coverage/
-.nyc_output/
-*.lcov
+# ReScript
+/lib/bs/
+/.bsb.lock
 
-# Environment
+# Python (SaltStack only)
+__pycache__/
+*.py[cod]
+.venv/
+
+# Ada/SPARK
+*.ali
+/obj/
+/bin/
+
+# Haskell
+/.stack-work/
+/dist-newstyle/
+
+# Chapel
+*.chpl.tmp.*
+
+# Secrets
 .env
-.env.local
-.env.*.local
+.env.*
+*.pem
+*.key
+secrets/
 
-# IDE
-.vscode/
-.idea/
-*.swp
-*.swo
-*~
-.DS_Store
+# Test/Coverage
+/coverage/
+htmlcov/
 
 # Logs
-logs/
 *.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
+/logs/
 
-# Temporary files
-tmp/
-temp/
+# Temp
+/tmp/
 *.tmp
-
-# Documentation build
-docs/api/
+*.bak