pub fn build_context(entries: &[SessionEntry]) -> Vec<Message>Expand description
Builds the LLM context from a session’s entry log.
With no SessionEntry::Compaction entry, returns all Message entries’
messages in append order.
Otherwise the last Compaction entry wins: the result starts with a user
message whose text is "[Conversation summary]\n" followed by the
compaction’s summary, then contains every Message entry from the one
whose entry id equals first_kept_id through the end of the log. If no
Message entry matches first_kept_id, the summary message is instead
followed by all Message entries positioned after that Compaction entry.
Entries before the cut are dropped from the returned context only — the store keeps the full history (invariant 2 of the module docs).