v0.69.0

Added

• A release pipeline: every push to main runs CI; a new version is packaged once, attested,
  published to the Visual Studio Marketplace and Open VSX, and released on GitHub.
• The Marketplace page: README, changelog, license, repository links and keywords.

Changed

• The last Turkish labels ("Close" / "Full screen" on diagrams, the analysis document title from
  MCP) are in English.