feat(monorepo): migrate to typescript monorepo

apps/api-legacy/CHANGELOG.md

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+# CHANGELOG
+
+This changelog references the relevant changes (bug and security fixes) done
+
+## [Unreleased]
+- Added: `app:stats' command to get the number of articles in the database
+- Modified: use `hash` instead of `link` field as index in `articles` table
+- Added: support for wp-json plugin via `WordPressJson` class
+- Added: `getPagination` method to `Source` abstract class
+- Added: `--parallel` option to `app:crawl` command to crawl multiple pages in parallel
+- Added: `app:update` command to update the database with the latest articles
+- Added: `$sep` parameter to `DateRange::from` method
+- Added: support for mysql database
+- Added: export to csv feature
+- Removed: `--filename` option from `app:crawl` command
+
+
+### 1.2.1
+- Added: '--page' option to 'app:crawl' command
+- Added: '--date' option to 'app:crawl' command
+- Added: notification by email when the crawl is finished
+
+### 1.0.0
+- Initial release