fix(qenv): Improve documentation, update dependencies, and refine project configuration

.serena/memories/code_style_conventions.md

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+# Code Style and Conventions
+
+## TypeScript Conventions
+- Use TypeScript with ES modules (type: "module" in package.json)
+- All files use `.js` extensions in imports (even for .ts files)
+- Interfaces prefixed with `I` (e.g., `IUserData`)
+- Types prefixed with `T` (e.g., `TEnvVarRef`)
+- Filenames must be lowercase
+- Avoid ENUMs when possible
+
+## File Organization
+- Source code in `ts/` directory
+- Tests in `test/` directory
+- Plugin imports in `ts/qenv.plugins.ts`
+- Main exports in `ts/index.ts`
+- Class files named as `qenv.classes.<classname>.ts`
+
+## Import Style
+- Import all dependencies in plugins file
+- Reference as `plugins.moduleName.method()`
+- Use full import paths with .js extension
+- Group imports: external packages, then internal modules
+
+## Testing
+- Use @git.zone/tstest framework
+- Import expect from tapbundle: `import { tap, expect } from '@git.zone/tstest/tapbundle'`
+- Test files end with `export default tap.start()` (tstest pattern)
+- Test file naming: `*.both.ts`, `*.node.ts`, or `*.browser.ts`
+
+## Documentation
+- Keep comments minimal unless specifically requested
+- README should be lowercase: `readme.md`
+- Documentation should be engaging and use emojis where appropriate
+
+## Git Conventions
+- Small, focused commits
+- Use `git mv` for file operations
+- Never commit without running tests and type checks