This pull request updates the application version and refines the release notes for Alpha v0.0.3. The main changes are the version bump in the desktop configuration and a significant overhaul of the release blog post, including a new, detailed post and the removal of an older draft.

Release documentation updates:

• Added a comprehensive new release blog post for Alpha v0.0.3, highlighting major features such as Table Preview, custom themes, Agent node, HashSet nodes, drag-and-drop pin editing, variable folders, storage UX improvements, refreshed landing page, and a list of bug fixes and minor changes. (apps/website/src/content/blog/2025-08-24-alpha-0-0-3.mdx)
• Removed the previous draft release post for Alpha v0.0.3 to avoid duplication and outdated information. (apps/website/src/content/blog/2025-08-27-alpha-0-0-3.mdx)

Versioning:

• Updated the desktop app version from 0.0.2 to 0.0.3 in the Tauri configuration to match the new release. (apps/desktop/src-tauri/tauri.conf.json)