v0.6.3

Added

• Frontend theme toggle — added persisted light/dark mode switching across the
  application, including light-mode graph canvas, nodes, Mermaid diagrams, wiki,
  ask, repository, and settings surfaces.
• Staged full analysis — added staged full-analysis execution for repository
  analysis workflows.

Changed

• Wiki prompt cache locality — split stable page-generation instructions from
  dynamic page payloads and warm up the first leaf page before concurrent generation
  to improve provider token-cache reuse.
• README badges — refreshed the project README header with documentation links,
  CI, license, PyPI download, and GitHub star badges.
• Repository file scanning — switched repository file scans to a lighter-weight
  path for lower overhead.

Fixed

• Backend typing — fixed backend type-checking issues found by mypy.
• Frontend graph loading — avoided unnecessary background graph loads.
• Translated wiki performance — sped up translated wiki generation.