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BaaRai
13dde2da15
Add an optional per-profile User-Agent that overrides the header on every outbound LLM request. When empty (the default), the existing behaviour is unchanged and the default User-Agent is left untouched. The value is trimmed and validated: control characters / newlines (header injection) and values longer than 256 bytes are rejected. Wired through the profile config struct, the Postgres llm_profiles schema, the profile API/DTO, the connection-test path, and the LLM profile form, following the existing session-header field. Addresses part of #154; the fixed-full-URL mode is not included.