Recall Confidence Gate

PR #396 fixed the prompt-submit recall confidence path in Signet, preserving reranker-calibrated scores instead of synthesizing recall scores from rank position. The TypeScript recall path now controls prompt-submit injection via `hooks.userPromptSubmit.minScore` defaulting to 0.8, while the Rust daemon uses a term-coverage proxy until full hybrid scoring parity lands.

Recall Confidence Gate Summary PR 396 fixed the prompt-submit recall confidence path so Signet no longer synthesizes recall scores from rank position after reranking. The TypeScript recall path preserves reranker-calibrated scores, and prompt-submit injection is controlled by hooks.userPromptSubmit.minScore , defaulting to 0.8 . The Rust daemon parity path mirrors the gate with a term-coverage proxy using matched terms / total terms until full hybrid scoring parity lands. Completed Behavior hybridRecall preserves calibrated scores from reranking instead of replacing them with rank-position placeholders. userPromptSubmit injects memories only when the top score is greater than or equal to hooks.userPromptSubmit.minScore .- The default prompt-submit minimum score is 0.8 . daemon-rs keeps comparable gating behavior through a term-coverage proxy. Follow-Up Boundary Full Rust hybrid scoring parity is not part of this completed fix. It remains a future parity improvement and should be tracked separately if needed.