v0.50.0 — Provider image assets and the UI audit

[0.50.0] - 2026-10-21

Fixed provider image assets and the remaining UI audit

• Every upstream SVG-backed model-provider icon now ships with RayRAG: the 29
  fixed web/src/assets/svg/llm/*.svg assets from v0.27.2 are vendored into the
  static tree, and provider_icon resolves the AIMLAPI, Astraflow, FastEmbed,
  FunASR, FuturMix, GreenPT, MWS, Synthorai and Xiaomi factories to them. A unit
  test now asserts each mapped asset exists.
• The profile avatar uploader is re-verified through the shared crop dialog: the
  profile CDP probe picks an image, confirms the 64x64 crop, checks the PATCH
  round-trip, removes the avatar, and checks both upstream name-validation
  messages and the zh copy.
• The UI re-audit batch re-ran the login-next backgrounds/form, skills search
  configuration, chat channels, model-provider settings, dataset retrieval
  testing and profile pages on the release build; all passed with zero page
  errors, and their ledger rows are aligned.