Resolve cross-platform linting, export notification utilities, and add Node 16 fetch compatibility

[ayushedith]

This PR addresses several developer experience (DX) papercuts, cross-platform compatibility issues, and runtime crashes found during a routine repository audit.

🐛 Bug Fixes & Improvements

• Node 16 fetch Fallback: Replaced the native fetch call in src/notifications/send-alert.ts with a dynamic fallback to node-fetch. Since the engines directive in package.json supports Node >=16.0.0, the pure native fetch (which is only globally available in Node 18+) was causing runtime ReferenceErrors in older environments.
• Windows CLI Compatibility: Updated the "lint:fix" script in package.json to use escaped double-quotes ("src/**/*.ts") instead of single-quotes. Single quotes crash cmd.exe on Windows when running npm scripts.
• CRLF Linting Resolution: Added a .prettierrc file strictly enforcing lf (Line Feed) end of lines. This resolves over 5,000 linting errors that occur when cloning the repository on Windows machines (where git defaults to CRLF).
• Missing API Exports: Exported sendAlert and dispatchWebhookAlert from src/notifications/index.ts. Previously, developers consuming the library could not manually trigger these utility notifications.

Testing Performed

• Successfully ran npm run prepare (tsc build).
• Successfully tested via npm run test against all webhook configurations.
• Confirmed npm run lint now returns cleanly (0 errors) on both Unix and Windows setups.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	node-fetch@​2.7.0
	@​types/​node-fetch@​2.6.13

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