refactor: remove test-utils and tsconfig packages

- Deleted the entire `test-utils` package, including utilities, mocks, and setup files.
- Removed shared TypeScript configurations from the `tsconfig` package.
- Cleaned up related configuration files and documentation.

Author: Marvin Zhang

.gitignore

@@ -1,177 +1,70 @@
-# Logs
-logs
-*.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-lerna-debug.log*
-.pnpm-debug.log*
-
-# Diagnostic reports (https://nodejs.org/api/report.html)
-report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
-
-# Runtime data
-pids
-*.pid
-*.seed
-*.pid.lock
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
-
-# Coverage directory used by tools like istanbul
-coverage
-*.lcov
-
-# nyc test coverage
-.nyc_output
-
-# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
-.grunt
-
-# Bower dependency directory (https://bower.io/)
-bower_components
-
-# node-waf configuration
-.lock-wscript
-
-# Compiled binary addons (https://nodejs.org/api/addons.html)
-build/Release
-
-# Dependency directories
-node_modules/
-jspm_packages/
-
-# Snowpack dependency directory (https://snowpack.dev/)
-web_modules/
-
-# TypeScript cache
-*.tsbuildinfo
-
-# Generated TypeScript files (should only be in build directories)
-**/src/**/*.d.ts
-**/src/**/*.d.ts.map
-**/src/**/*.js
-**/src/**/*.js.map
-
-# Optional npm cache directory
-.npm
-
-# Optional eslint cache
-.eslintcache
-
-# Optional stylelint cache
-.stylelintcache
-
-# 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 variable files
+# =========================
+# Go Build Artifacts
+# =========================
+bin/
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Go test binary
+*.test
+
+# Go coverage
+coverage.txt
+coverage.html
+coverage.out
+
+# =========================
+# SQLite Database Files
+# =========================
+*.db
+*.db-journal
+*.db-shm
+*.db-wal
+
+# =========================
+# Environment & Config
+# =========================
 .env
-.env.development.local
-.env.test.local
-.env.production.local
 .env.local
+.env.*.local
+
+# =========================
+# IDE & Editor
+# =========================
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# =========================
+# OS Files
+# =========================
+.DS_Store
+Thumbs.db
+
+# =========================
+# Logs
+# =========================
+logs/
+*.log
 
-# parcel-bundler cache (https://parceljs.org/)
-.cache
-.parcel-cache
-
-# Next.js build output
-.next
-.next-build
-out
-
-# Nuxt.js build / generate output
-.nuxt
-dist
-
-# Gatsby files
-.cache/
-# Comment in the public line in if your project uses Gatsby and not Next.js
-# https://nextjs.org/blog/next-9-1#public-directory-support
-# public
-
-# vuepress build output
-.vuepress/dist
-
-# vuepress v2.x temp and cache directory
-.temp
-.cache
-
-# vitepress build output
-**/.vitepress/dist
-
-# vitepress cache directory
-**/.vitepress/cache
-
-# Docusaurus cache and generated files
-.docusaurus
-
-# Serverless directories
-.serverless/
-
-# FuseBox cache
-.fusebox/
-
-# DynamoDB Local files
-.dynamodb/
-
-# TernJS port file
-.tern-port
-
-# 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.*
-
-# package-lock.json files (this project uses pnpm)
-package-lock.json
-
-build/
-
-.idea
-
-# Local development files
-.devlog-counter
-.devlog.backup*
-
-# Legacy devlog configuration files (no longer used - now uses .env)
-# devlog.config.json
-# devlog-integrations.config.json
-
-# Local environment variables for development
-.nx
-
-# Temporal folder for debugging or quick testing
+# =========================
+# Local Development
+# =========================
+.devlog/
 tmp/
 
-# Vercel configuration files
-.vercel
-
-# Turbo configuration files
-.turbo
-
-# Playwright
-.playwright-mcp
+# =========================
+# Playwright MCP
+# =========================
+.playwright-mcp/
 
-# SQLite database files
-*.db# Temporary files
-/tmp/
+# =========================
+# Specs tooling
+# =========================
+.lean-spec/
+.lspec/