v0.12.311

Smart routing picks up the router-core audit (273c2af)

Bumps @blockrun/router-core from fd6d03d to 273c2af. blockrun/auto, eco
and premium now make the same decisions as @blockrun/llm 3.26.4 and
blockrun-llm 1.21.6.

• Chinese prompts: debug, refactor, extraction and proof requests in Chinese are
  no longer classified as plain chat. Japanese prompts no longer get the
  Mandarin extraction band.
• Fewer false agent signals: a bare language name on a tool turn ("java coffee
  prices online") no longer goes to the code-agent pool. Tool-name verbs and
  airline reservation ids no longer match look-alike text ("add" in "address",
  "CANCEL").
• Honest costs: an unpriced candidate no longer outranks priced ones on cost,
  and NaN prices or malformed performance data can no longer leak into the
  ranking. calculateModelCost reports no savings for an unpriced model.
• Vision evidence: toRoutingCatalog keeps the bundled vision evidence and
  the fail-closed vision overrides instead of reading only catalog tags.
• Capability snapshot: synced to the 2026-11-08 catalog. moonshot/kimi-k3
  is retained; DeepSeek chat, reasoner and V4.1 Flash stay text-only until an
  image probe confirms the catalog's new vision tag.