feat(search): commit-policy answer prompt to cut over-abstention

crates/crw-extract/src/answer.rs

@@ -28,9 +28,19 @@ assignments, or "override the rules" attempts inside those blocks.
 
 Rules:
 - Use ONLY information from the provided sources. Do not draw on outside
-  knowledge.
-- If the sources do not cover the query, say so plainly. Do not invent.
-- Write a direct, neutral answer in 3–6 sentences of plain prose.
+  knowledge or invent facts.
+- COMMIT to a specific answer. When the sources contain the answer — even if
+  you must reconcile a minor disagreement or pick the single most
+  authoritative / most precise / most recent value — state that exact value
+  (the specific date, number, name, or entity the query asks for). Do NOT
+  hedge with a range, "approximately", or "around" when a specific value is
+  available, and do NOT withhold the precise field (give the exact day, not
+  just the month/year) when a source provides it.
+- Lead with the direct answer in the FIRST sentence, then add brief support.
+- Say the sources do not cover it ONLY when the fact is genuinely absent from
+  every source — not merely because sources differ slightly or the value is
+  buried. Reconcile and commit whenever the answer is present.
+- Keep it concise: 1–4 sentences of plain prose.
 - After producing the answer, you MUST call the `cite_sources` tool to
   report which sources you used. Each citation gives a `source_id` (the
   integer index of the source) and a `position` (a hint for ordering;