0.12.0

Added

• search messages --discover reranks its first 50 hits once a reranker is downloaded (cli-core 0.435.0). A local model reads the question with each hit, and its score is mixed with discovery's own; the hits after the first 50 keep their order. The default is mMARCO (136 MB, wa models download mmarco); the profile setting search_reranker picks bge-reranker-v2-m3 (588 MB) or off. Each reranked hit has discovery.reranker_score; score stays discovery's. Without the model, discovery keeps its order and says not reranked: … (in --json and MCP: missing and next). A search never downloads a model and never sends text anywhere; --exact, --newest and strict queries are untouched.
• search all finds messages by meaning too, once e5-small is downloaded and messages have their vectors (cli-core 0.435.0). The meaning hits are merged with the word hits into one messages list; each item's foundBy says which search found it. A query with NOT, or with a filter under OR or in a group, stays words only. Without the model or the vectors, search all reads words as before and says why. --exact and --backend server stay words only.

Changed — may break callers

• The shared store moves to version 34 (cli-core 0.434.0). Search by meaning ranks through a vector index kept in the store, built on the first open by this version. Once this version opens the store, a CLI on cli-core 0.433.0 or older refuses it and asks to be upgraded, so upgrade every WireCat CLI that shares the store together. When the index's SQLite extension is missing or does not load, opening the store fails with store.vector-extension-missing or store.vector-extension-failed: reinstall wa. store check reports vector_indexes and fails when an index is out of step.
• wa upgrade --help shows only wa upgrade --check as its example (cli-core 0.433.0). The bare wa upgrade example is gone: copied and run, it upgraded.
• Analysis through Anthropic sends the key as Authorization: Bearer (cli-core 0.433.0). It used to send X-Api-Key. A gateway at a custom models.<purpose>.base_url that reads X-Api-Key must read Authorization instead.

Fixed

• A stored vector goes once no text in the store uses it (cli-core 0.435.0). An image whose picture changed and a purged chat (store clear --left, a chat merged into another) left vectors behind, and no longer do. store rebuild drops the ones older versions left (unused_vectors_dropped), and store check counts them (vectors.unused).
• conversations embeddings clear --chat drops the chat's message vectors too (cli-core 0.435.0), not only its conversations'.