Upgrading dotenv from 16.x to 17.x

### Changed

* Improved skill files - tightened up details ([#1009](https://github.com/motdotla/dotenv/pull/1009))

### Changed

* Change text `injecting` to `injected` ([#1005](https://github.com/motdotla/dotenv/pull/1005))

### Added

* Add `skills/` folder with focused agent skills: `skills/dotenv/SKILL.md` (core usage) and `skills/dotenvx/SKILL.md` (encryption, multiple environments, variable expansion) for AI coding agent discovery via the skills.sh ecosystem (`npx skills add motdotla/dotenv`)

### Changed

* Tighten up logs: `◇ injecting env (14) from .env` ([#1003](https://github.com/motdotla/dotenv/pull/1003))

### Changed

* Fix as2 example command in README and update spanish README

### Added

* Add a new README section on dotenv’s approach to the agentic future.

### Changed

* Rewrite README to get humans started more quickly with less noise while simultaneously making more accessible for llms and agents to go deeper into details.

### Changed

* Make `DotenvPopulateInput` accept `NodeJS.ProcessEnv` type ([#915](https://github.com/motdotla/dotenv/pull/915))
- Give back to dotenv by checking out my newest project [vestauth](https://github.com/vestauth/vestauth). It is auth for agents. Thank you for using my software.

### Changed

* Fixed typescript error definition ([#912](https://github.com/motdotla/dotenv/pull/912))

### Added

- 🙏 A big thank you to new sponsor [Tuple.app](https://tuple.app/dotenv) - *the premier screen sharing app for developers on macOS and Windows.* Go check them out. It's wonderful and generous of them to give back to open source by sponsoring dotenv. Give them some love back.

### Changed

* Fix clickable tip links by removing parentheses ([#897](https://github.com/motdotla/dotenv/pull/897))

### Added

* Optionally specify `DOTENV_CONFIG_QUIET=true` in your environment or `.env` file to quiet the runtime log ([#889](https://github.com/motdotla/dotenv/pull/889))
* Just like dotenv any `DOTENV_CONFIG_` environment variables take precedence over any code set options like `({quiet: false})`

```ini
# .env
DOTENV_CONFIG_QUIET=true
HELLO="World"
```
```js
// index.js
require('dotenv').config()
console.log(`Hello ${process.env.HELLO}`)
```
```sh
$ node index.js
Hello World

or

$ DOTENV_CONFIG_QUIET=true node index.js
```

### Added

* Add additional security and configuration tips to the runtime log ([#884](https://github.com/motdotla/dotenv/pull/884))
* Dim the tips text from the main injection information text

```js
const TIPS = [
  '🔐 encrypt with dotenvx: https://dotenvx.com',
  '🔐 prevent committing .env to code: https://dotenvx.com/precommit',
  '🔐 prevent building .env in docker: https://dotenvx.com/prebuild',
  '🛠️  run anywhere with `dotenvx run -- yourcommand`',
  '⚙️  specify custom .env file path with { path: \'/custom/path/.env\' }',
  '⚙️  enable debug logging with { debug: true }',
  '⚙️  override existing env vars with { override: true }',
  '⚙️  suppress all logs with { quiet: true }',
  '⚙️  write to custom object with { processEnv: myObject }',
  '⚙️  load multiple .env files with { path: [\'.env.local\', \'.env\'] }'
]
```

### Changed

* Patched injected log to count only populated/set keys to process.env ([#879](https://github.com/motdotla/dotenv/pull/879))

### Changed

- Default `quiet` to false - informational (file and keys count) runtime log message shows by default ([#875](https://github.com/motdotla/dotenv/pull/875))

Between dotenv 16.6.1 and 17.4.2, Vigia found 0 removed exports, 1 changed signatures and 1 removed or changed class or interface members.

0 exports or members are newly marked as deprecated in dotenv 17.4.2.